146 99 7MB
English Pages 311 [309] Year 2010
SpringerWienNewYork
CISM COURSES AND LECTURES
Series Editors: The Rectors Giulio Maier - Milan Jean Salençon - Palaiseau Wilhelm Schneider - Wien
The Secretary General Bernhard Schrefler - Padua
Executive Editor Paolo Serafini - Udine
The series presents lecture notes, monographs, edited works and proceedings in the field of Mechanics, Engineering, Computer Science and Applied Mathematics. Purpose of the series is to make known in the international scientific and technical community results obtained in some of the activities organized by CISM, the International Centre for Mechanical Sciences.
INTERNATIONAL CENTRE FOR MECHANICAL SCIENCES COURSES AND LECTURES - No. 513
PATTERN FORMATION AT INTERFACES
EDITED BY PIERRE COLINET UNIVERSITE LIBRE DE BRUXELLES, BRUSSELS, BELGIUM ALEXANDER NEPOMNYASHCHY TECHNION-ISR. INST. OF TECHNOLOGY, HAIFA, ISRAEL
This volume contains 113 illustrations
This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. © 2010 by CISM, Udine Printed in Italy SPIN 12821907
All contributions have been typeset by the authors.
ISBN 978-3-7091-0124-7 SpringerWienNewYork
,2#0$!'* .22#0, $-0+2'-, -!!301 ', 1#4#0* ,230* 2#!&,- *-%'!* ," +#"'!* !-,2#621 13!& 1 #% 52#0 *+1 ," "0-.*#21 -5',% *-,% ',!*',#" 130$!#1 "07',% -$ .',2 *+1 -0 !-2',%1 #*#!20-"#.-1'2'-, 1#+'!-,"3!2-0 .0-!#11',% +'!0-3'"'!1 +3!31 -5 ', 2 *3,%1 "07 #7# 17,"0-+# -"#*',% 2# .0-!#11#1 0# /3'0#1 , 3,"#012,"',% -$ 2'0 .&71'!1 ," 2 ),-5*#"%# -$ *#,%2& ," 2'+# 1!*#1 2&2 !&0!2#0'8# 2+ ,2#0$!#1 .*7 "-+',,2 0-*# 2 1+** 1!*#1 ," 2'0 !-00#!2 +-"#*',% '1 2#$-0# *1- !03!'* ', 2 0.'"*7 #6.,"',% #*" -$ ,,-2#!&,-*-%7 #% 1#*$-0%,'8#" ,,-.02'!*# "#.-1'2'-, .22#0,1 /3,23+ "-21 ,##" 2- !-+.0# 40'-31 "#1!0'.2'-,1 -$ 2 .&71'!1 -$ +3*2' 1!*# ',2#0$!'* .,-+#, ," 2 "#1'0# 2- *. ,#5!-+#01 ', 2 #*" ', +12#0',% 2'0 +-"#*',% ," '"#,2'$7',% +-"#0, 1!'#,2'! ," 2#!&,-*-%'!* !&**#,%#1 ',1.'0#" 2 -0%,'82'-, -$ 2 "4,!#" !&--* 22#0, -0+2'-, 2 ,2#0$!#1 5'2& ..*'!2'-,1 2- 2#0'*1 !'#,!# '-+#"'!* ," &71'!-+'!* 0-!#11#1 5&'!& 2--) .*!# ', "',# 2*7 !2- #0 '6 *#!230#01 $0-+ #*%'3+ #0+,7 10#* ," 2 %4# 1#0'#1 -$ *#!230#1 2- , 3"'#,!# -$ %0"32# 123"#,21 .-12"-!1 ," 7-3,% 0#1#0! *#!230#1 &4# !-4#0#" +-12 +-"#0, +#2&-"1 **-5',% 2- 20#2 ', 2#0$!'* ',12 '*'2'#1 13!& 1 +3*2'1!*# 17+.2-2'! #6.,1'-,1 *', #0 12 '*'27 5#)*7 ,-,*',#0 +#2&-"1 ," '$30!2'-, 2-07 , *72'!* ," $3**7 ,3+#0'!* 2#!&,'/3#1 &4# ##, "'1!311#" ," #6 .#0'+#,2* 0#13*21 &4# ##, .0#1#,2#" #'2 2- !-,0+ 2-07 -0 2'**31202# "'0#!2'-,1 $-0 $302 0#1#0!& .0#1#,2 --) !-,1'121 -$ 1'6 !&.2#01 ',1.'0#" $0-+ 2 *#! 230#1 %'4#, "30',% 2 "4,!#" !&--* ** !-,20' 32'-,1 0# .0#1#,2#" 5'2&', 2 $0+#5-0) -$ !-,2',3-31 2-0'#1 ," 20,1.-02 .,-+#, '# +11 +-+#,23+ ," 2 20,1$#0 #2 2 ',4#1 2'%2'-, -$ .,-+#, 2)',% .*!# 2 ',2#0$!#1 ," $0-,21 -$ .&1# 20,1'2'-, ,##"1 2 !-+ ',2'-, -$ 25- "'#0#,2 )',"1 -$ +-"#*1 , 2 012 ..0-!& 2 ',2#0$!#1 -0 2 $0-,21 0# !-,1'"#0#" 1 - (#!21 -$ 8#0- 2&'!),#11 5&'*# 2 1#!-," ..0-!& 0#!-%,'8#1 2 ',2#0,* "'31# 1203!230# -$ 2 20,1'2'-, 8-,# "7,+'!1 -$ ',2#0$!#1 ," $0-,21 0# !&0!2#0'8#" 7 ,3 +#0-31 )',"1 -$ ',12 '*'2'#1 *#"',% 2- ,-,*',#0 .22#0,1 ," 54#1
#4#0* !&**#,%',% .&71'!* .0- *#+1 13!& 1 .&1# 20,1'2'-, ', 12 '*'2'#1 $0-,2 4#*-!'27 1#*#!2'-, ," 20,1'2'-,1 2- !&-2'! 1.2'- 2#+.-0* 0#%'+#1 0# "'1!311#" 5'2& 4'#5 -$ '"#,2'$7',% 2 0#*# 4,2 .&71'!-!+'!* .0-!#11#1 ," 2)',% ',2- !!-3,2 +3*2'1!*# !-3.*',%1 2 2-0#2'!* ," ,3+#0'!* *#4#* ', 0'%-0-31 +,,#0 #,#0'! 1.#!21 -$ ,-,*',#0 .,-+#, 0# *1- #+.&1'8#" ," 2!-+.*#2# 2 .'!230# #6.#0'+#,2* #4'"#,!# -$ .22#0, $-0+2'-, 2 ',2#0$!#1 '1 .0-4'"#" 2- '**31202# ," 4*'"2# +-"#*',% ..0-! --) '1 ',2#,"#" 2- %0"32# 123"#,21 0#1#0! ," *#!230 #01 ', .&71'!1 ," #,%',##0',% ',2#0#12#" ', +12#0',% 2 +-"#0, +#2&-"1 -$ ,-,*',#0 12 '*'27 2-07 ..*'#" 2- 2 .0- *#+1 -$ !-,2', 3-31 +#"' +#!&,'!1 ', 2 .0#1#,!# -$ ',2#0$!#1 5'2& ..*'!2'-,1 2- +2#0'*1 1!'#,!# !+'!* #,%',##0',% 2 20,1$#0 2#!&,-*- %'#1 1 5#** 1 ', !-+ 312'-, ," -2 0#!2'-,"'31'-, 1712#+1 0#"#01 0# #6.#!2#" 2- &4# $-**-5#" 012 *#4#* !-301# ', 3'" +#!&,'!1 -0 20,1.-02 .,-+#, ," 1-+# !)%0-3," ', *',#0 *%# 0 -0"',07 ," .02'* "'#0#,2'* #/32'-,1 2 %-*1 -$ 2&'1 4-*3+# 0# 2- **-5 2 0#"#0 2- '"#,2'$7 )#7 .0- *#+1 -$ 1!' #,2'! 4*3# 2 +#2&-"1 2- 0#1-*4# +-"#*',% '113#1 ," 2- 1## 2 1'+'*0'27 #25##, 40'#27 -$ 1##+',%*7 "'#0#,2 .&71'!* .0- *#+1 #"',% 2 --) ," 1-+# -$ 2 0#$#0#,!#1 !'2#" 2#', 1&-3*" * *-5 2 0#"#0 2- /3'!)*7 +-4# ',2- , 0# -$ .&71'!1 ," #,%',##0',% 2&2 '1 0'!& ', .,-+#, ," 0#.*#2# ', ..*'!2'-,1 '"# -$ !007',% -32 2&'1 "4,!#" !&--* -, .22#0, $-0+2'-, 2 ',2#0$!#1 #*-,%1 2- 0-$#11-0 ,3#* #*0"# 5&'*# 51 !23**7 #!2-0 -$ 21 0#*'82'-, 5-3*" ,-2 &4# ##, .-11' *# 5'2&-32 &'1 #,!-30%#+#,2 ," *. &'1 --) '1 "#"'!2#" 2- &'+ ," 2- &'1 #11#,2'* !-,20' 32'-,1 2- 2 #*" 0%'!**7 -,# -$ 2 32&-01 -$ 2 .0#1#,2 --) 0-$#11-0 *#6, "#0 1& -*-4', .11#" 57 ', #.2#+ #0 5&'*# 2&'1 --) 51 ', .0#.02'-, &'1 '1 %0#2 *-11 $-0 &'1 $0'#,"1 ," $-0 2 5&-*# ,-,*',#0 1!'#,!# !-++3,'27 ,7 -$ 31 #,#2#" +3!& $0-+ 1!'#,2'! "'1!311'-,1 ," !-** -02'-, 5'2& 2&'1 #6!#.2'-,* .#0 1-, 5&- ,#4#0 12-..#" 1+'*',% !!-0"',% 2- 2 123"#,21 ," !-* *#%3#1 5&- $-**-5#" 2 !&--* &'1 *#!230#1 5#0# , #6+.*# -$ !-+ ',#" 0'%-0 %0#2 #,2&31'1+ $-0 !'#,!# ," .#"%-%7 # 5'** ,#4#0 $-0%#2 &'+ *#6,"#0 #.-+,71&!&7 ," '#00# -*',#2
!
!
!
!
! !
% % $ %$ % $ ! $ C(
( 4=CM(F ;$0 : &/:' B > # > B > #
! " " #
! " "
" # B
= VCKV # C=6Y CCFCM K Y(Y K M ( C:(MFC;(: C V(M > > =
> > 2 K=+ CM Y * M: ( :CT YV=Y FV F " # - " 2 C( FV( CMF( KC F(+(
F6 ( CY M=F 0(KF(: T (# +=
FC=M M: ( KV(Y CFY # 6( CM FV( +6 (T K=M:6KFCM YF F(O CC V(M > > = > > 2 Y * M: ( : F= ! " " # " - ' # ' B <
' 2 VCKV ( MY FV F =K FV( =:TM CK (6CC C6 + (# CY F FV( CMF( K(2 KK= :CM F= > = > > 2 Y *
M: X ( :CT TC(: ' # - ' 2 M: FV( Y K=+=YCFC=M CY 6MC= 4( T2 F= = FV(Y( FV (( YCF6 FC=MY T ( ( C?(: YC6F M(=6YT =
CMYF MK(2 CM FV( K Y( > > M: > > 2 FV( (# +=
FC=M
F( # ! " " " CY /"$&/ 2 (#(M FV=6V FVCY K Y( YV=6: =MT
:=0 %88 8;= %0;#%#0 #; 0% =,%#0 %8#; %= #; ;= 8== % =0 %8% %8= ##%%#0 ;%= #; #06= % 6#0=%#, ==,%; #= %8= #0%=*,= #; 0% % =+# ##
24
Pierre Colinet
++T F= (F ((T FVCM C6C: M: Y +V Y(Y M=F( FV F ! " CY (6 F= 32# Y(( :=CM F(Y2 =M( V Y FV( --&-$&/ (C(2 V( ( (# +=
FC=M CY : C#(M T FV( YY
KFC=M :C0( (MK( ' ' 2 CM VCKV ' CY FV( (6CC C6 YY
KFC=M K=
(Y+=M:CM F= FV( CMF( K( F(+(
F6 ( " CM FV( +6 (T K=M:6KFCM YF F( 7=F( FV F FV(Y( K=MYC:(
FC=MY ( # C: = FV( (( (MK( YF F(2 6F := M=F M(K(YY CT ++T F= )6KF6 FC=MY =6M: FV( FF( !
2%3 1' %'11
/V( YF CCFT = FV( YF( :T (( (MK( YF F( 5 CY YF6:C(: T ::CM CM;MCF(YC +( F6 FC=M ;(:Y F= # C (Y2 C( - # B #
" - " # B " #
-
#
B
E
M: CM( C?CM FV( YCK (6 FC=MY CFV (Y+(KF F= FV( + C(: 6 MFCFC(Y /V(M2 =CFFCM FV( + C(Y2 ( K M =F CM YC+( YTYF( T ; YF = CM FV( :C#( (MK( = " M: 6YCM 52 ( :CM F= P - > 8 " /VCY
=Y (CCM FCM Y ( Y M: = FV( 6 YTYF(2 T ++TCM FV( Z + KC M =+(
F= F= "2 M: 6YCM FV( ( FC=M 36YF =6M: ( FV(M =F CM 8 P B > P " - P 5 85 8" P" B " 85 V( ( YF M:Y = FV( :C(MYC=M(YY 1:( C# FC#( FV =6V=6F CM FV( == CM2 VC( P - 8 B 8 CY FV( V= C?=MF Z + KC M =+(
F= /VCY YTYF( M: YY=KC F(: =6M: T K=M:CFC=MY :CYK6YY(: CM + (#C=6Y Y(KFC=MY K M ( =6 C( F
MY= (: CM FV( V= C?=MF + M(2 M: :CFY Y=6FC=MY = FV( = &
1 (+I5% C1 "& /V( K=
(Y+=M:CM (C(M# 6( + =( = FV(M ( :Y > C -
XL
C B - C
X # 6 # >=(#( 2 FVCY CY F(KVMCK T C+=YYC( FV( ( Y=M = FVCY (CM FV( K=+CK F(: :(+(M:(MKT = FV( ==FY 6+=M 2 M: FV( :(F( CM MF XE CM (M(
V Y F= ( K K6 F(: M6( CK T2
M: K=CM(: CFV M CF(
FC#( (FV=: = ==F ;M:CM ( 7(F=M'Y (FV=: /V( ( ( V=(#( + FCK6 K Y(Y2 = VCKV M TFCK (Y6FY K M ( =F CM(: = C#(M # 6(Y = FV( K=MF = +
(F( Y > M: 6 M: ;(: # 6(Y = M: 322 FV( (( (MK( YF F( C ( 6MYF ( C FV( ( (CYFY F ( YF # 6( = = VCKV L2 VC( CF C ( YF ( F= CM;MCF(YC +( F6 FC=MY C . L = /V( FV (YV=: = CMYF CCFT CY FV(M C#(M T - L , ( - - L2 =M( Y+( Y = M(6F
YF CCFT =M=F=MCK =:(Y2 VC( C ( - L F K CFCK CFT2 =M( V Y =#( YF CCFT =YKC F= T =:(Y2 = #(Y
26
Pierre Colinet
3 Z(F M(6F
YF CCFT K6 #(Y = FV( H
M=MCDG(M : + =( > - L = # C=6Y "$-$ DC=F M6( Y 32 RCVF =K6Y = CMC = M(6F
YF CCFT K6 #(Y = FV( R T(CVH
M=MCDG(M : + =(2 =
32 - L
%%# 31 ,M K Y( - L M(6F
YF CCFT2 FV( + =( XLX K M ( Y=#(: M TFCK T = > - L2 Y :=M( T ( Y=M ( Y=M2 6 - !) #(M FV=6V FV(Y( CM( YF CCFT (Y6FY ( ( = CCM T =F CM(: CM FV( M=M#= FC( K Y(2 FV( :CYK6YYC=M = FV( + (#C=6Y Y(KFC=MY YV=(: FV F
Interfacial Patterns and Waves in Liquid Layers and Thin Films
27
= Y6KC(MFT Y (# +=
FC=M )6(Y2 FV( YF CCFT = #= FC( C6C: T( K M ( YF6:C(: =M FV( YCY = FV( Y ( Y+(KF
+ =(2 6YCM (M(
C?(: DC=F M6( 32 C#(M T 7=F( FV F CM FVCY
(2 Y6KV M=M#= FC( CCF = T K=
(Y+=M:Y F= # MCYVCM KK==: FC=M K=(KC(MF 2 = CM FV( CMF( KC CM(FCK *E ,M Y6KV K=FV,2 /"$&/ (C(2 ( :Y F= 32 - 32 - C( V( F F
MY( F FV( (( Y6 K( CY CCF(: F= ( V( F K=M:6KFC=M L ( ( F( 2 ( Y((KF - < K CFCK #(M6( = YC+CKCFT2 Y6KV Y - 4( T2 - L2 CF CY M=F +=YYC( F= ;M: 6MKFC=M Y FCYTCM FV( Y ( K=M:CFC=MY2 M: ( T FV( (= ( (+(KF = ( K=+( (V #C= Y CM K Y( =F FC=M =KK6 Y @(+
FCM =:6C M: +V Y(Y Y A - (+I24 % # - - L Y (2 M: YV=Y FV F FV( =MT YF( :T Y=6FC=MY = 4 ( 4 - L M: 4 - < Y FV( 6 MFCFT (F((M + (MFV(Y(Y CY TY +=YCFC#(2 FV( (#=6FC=M CY =M=F=MCK F= :Y 4 - L C 9 L M: 4 - < C 9 . L /VCY +V(M=(M=M CY K (: +V Y( YTMKV =MC? FC=M2 VCKV CY + FCK6 F= FV( K Y( = (Y=M MF F C :Y2 C( CF CY :C (KFT CM (: CFV FV( 6 :
FCK F( Y = +CF6:( (6 FC=MY 5 4=(KFCM FV( ( + FY = +CF6:( (6 FC=MY2 ( (F ( FC=MY =CM F= :(F( CM( M=F =MT FV( YF( :T YF F( Y=6FC=MY2 6F Y= FV(C YF CCFT Y(( = CMYF MK( 4=CM(F (F 2 *LLB M: > CM FV( M=M =F FCM K Y( > - L2 M: = L FT+CK K Y( CM H
M=MCDG(M : K=M#(KFC=M @F ( Y=6FC=MY (
(+ (Y(MF(: Y + CM CM(Y2 VC( 6MYF (
MKV(Y ( : YV(: /V(
MKV(Y ((: H K=
(Y+=M: F= M 6MYF ( C(: Y=6FC=M 4(MF( (K=MYF 6KFC=M = FV( 6+V( =M Y=6FC=M >B = X RCVF (K=MYF 6KFC=M = FV( :=MV( =M Y=6FC=M > = X ,F CY Y((M CM C ( =M YF 6KF6 ( = (YK ( H
M=MC K=M#(KFC=M +%-" (2 X* 55 ""2 - C * UJJ= :DL G= (L( GT(= R = GT( X((L: ( (5GD=L1 GT( :DWJ (G( W+(JG 5 DLJ5:(W B (D(L"5(W1 J=
(W+=L:DL G= > - $' ' $ DGT GT( XR+5L=" 5LJGD=L < C > $' ' < ' C C - + * * ( W( JT GT( W=5GD=L DL GT( = ' - ' C >' C $ - >4 UG GT( ; WG = :( DL >1 ' C ' ' - K$ T(LJ( ' - GLT
*
UG GT( W(J=L: = :( DL > ( =GDL ' C < ' ' - '
+ ' +
/T( W="DDGR J=L:DGD=L D"(W * * + + - $ +4 + T( ( GT( +=G(LGD = GT( DLG( JGD=L (G((L GT( :=DL L: GT( DLT==(L(DGR DW < - C @ ' C > ' - @ 71 75 71 75
7 7 C> 71 7*
' C ' ' C , >
/T( W=5GD=L DW J=LWG 5JG(: DL GT( = ' - ' C >' C $ @ - @ C UG GT( (:DL = :( 1 ( =GDL I< C @ $' C ' ' - K /T( =LG W=5GD=L DW 1 ' - GLT *I< C @ $
FK
( WW5( GTG GT( +TW( ' ' - < C > DW =JG(: ="( GT( =LG1 L: GT( +TW( ' ' - < C > DW =JG(: (= GT( =LG UG GT( L(G = :( 1 ( ;L: I< C @ $' C < ' ' -
Nonlinear Dynamics of Fronts
87
@ ' C @ ' C *@ ' *@ @ ' , /T( J=L:DGD=L = GT( W="DDGR =L GT( JWW = =5L:(: 5LJGD=LW DW GT( = GT==LDGR = GT( DTGTL: WD:( G= GT( W=5GD=L = GT( T==(L(=5W (5GD=L 7 I@ C @ $ ' +1 C @ ' +1 C *, - K 75 @5WGDG5GDL FK L: ("5GDL GT( DLG( W1 ( =GDL GT( ==DL (5 GD=L GTG :(G( DL(W GT( =GD=L = GT( J5 "(: WG(WG( =LG GT( W5 WJ D+G K DL @ DW =DGG(: @ * @ , C * < C @ < C @ /T( G( DL GT( (GTL: WD:( DW GT( L= "(=JDGR = GT( =LG 1 TD( GT( ; WG G( DL GT( DTGTL: WD:( DW GT( J5 "G5 ( & = GT( =LG /T5W1 GT( = GT( =LG =GD=L JL ( DGG(L DL GT( ==DL DL" DLG = DL:(+(L:(LG =L GT( JT=DJ( = GT( WRWG( = J== :DLG( L: GT( WT+( = GT( =LG * - & C , F(LJ(1 DGT GT( =GT = 4 GT( :D5W =4 :(J (W(W =L=G=LDJR L:
(JT(W ?( = G 4 - 4 - = ,L GT( JW( K GT( DLL( +TW( DW G 5R WG(1 GT( W=5GD=L JL ( + (W(LG(: DL L D+DJDG = W = - = C 41 T( ( = - = I" C L < "$$ " - == $ = - 6 6
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
Three Dimensional Film Dynamics
155
)'41% 8IF EJTKPJOJOH QSFTTVSF JODMVEJOH HSBWJUBUJPO # # ! # 8IF SFHJPO PG VOTUBCMF MNT JT CPVOEFE CZ 6 BOE 6 8IF DSJUJDBM QSFTTVSF EFQUI ' 6 XIFSF ESPQT UVSO JOUP IPMFT JT EFUFSNJOFE CZ B 1BYXFMM DPOTUSVDUJPO TFF TFDUJPO
XJUI UIF UXP QPTJUJWF ,BNBLFS DPOTUBOUT BOE (JFSFOU NPEFMT XFSF EJTDVTTFE JO MJUFSBUVSF JO EFUBJM ;F TIBMM SFTUSJDU VT IFSF UP UIF >0FOOBSE .POFT QPUFOUJBM XIJDI SFTVMUT GPS ; # BOE : # )YBNJOJOH UIF EFSJWB UJWF PG TIPXT UIBU MBZFST XIJDI IBWF B EFQUI CJHHFS UIBO 6 # BSF BMXBZT VOTUBCMF )TQFDJBMMZ BSCJUSBSZ UIJDL MNT BSF VOTUBCMF JO UIJT NPEFM 8IJT JT PG DPVSTF OPU SFBMJTUJD BOE IBT JUT SFBTPO JO UIF OFHMFDU PG UIF HSBWJUBUJPOBM GPSDF JO -G UIJT JT BMTP JODMVEFE POF OET JOTUFBE PG ' # = !6 > 6 6 6 8IF MPXFS BOE VQQFS TUBCJMJUZ CPVOET 6 6 GPS UIF EFQUI BSF UIFO TPMVUJPOT PG UIF QPMZOPNJBM !6 6 # PS DBO CF UBLFO HSBQIJDBMMZ GSPN H
156
Michael Bestehorn
&$$
-G B UIJO MJRVJE MN JT FYQPTFE UP B OPO PS QBSUJBMMZ XFUUJOH TVCTUSBUF B TNBMM QFSUVSCBUJPO JT TV DJFOU UP EFTUBCJMJ[F UIF BU TVSGBDF 8IF VJE UIFO CVCCMFT BOE NBOZ TNBMM ESPQT BSF GPSNFE 8IJT QIFOPNFOPO DBO CF TFFO GPS JOTUBODF JG SBJO GBMMT PO B XBYFE DMPUI PS PO B XFMM QPMJTIFE DBS SPPG 7VDI B QSPDFTT JT DBMMFE ,)"'(% 0--"' BOE DBO CF EFTDSJCFE JO UIF GSBNF PG FR JG UIF EJTKPJOJOH QSFTTVSF IBT B OFHBUJWF TMPQF GPS B DFSUBJO SFHJPO PG UIF JOJUJBM EFQUI 6 &FTUFIPSO BOE 2FVFS
+31!3()- )2.3(%1,!+ +,2
*PS UIF GPMMPXJOH TUVEZ XF UBLF B BUUSBDUJOHSFQFMMJOH EJTKPJOJOH QSFTTVSF EJTDVTTFE JO UIF MBTU TFDUJPO FR 6 #
!6 6 6
8IJT JOTFSUFE JOUP ZJFMET UIF UIJO MN FRVBUJPO #DPOTU!
6 6 # 6 6
2PUF UIBU XF QVU > # 8IJT JT QPTTJCMF CZ B TVJUBCMF DIPJDF PG BOE ;F TIBMM DPNF CBDL UP UIJT JTTVF JO NPSF EFUBJM CFMPX .1,!+ &.1, -OTUFBE PG GVSUIFS FYBNJOJOH XF STU XJTI UP DPOWFSU JU UP B NPSF DPOWFOJFOU GPSN TIPXJOH UIF DBOPOJDBM GPSN PG B 8ZQF -- JOTUBCJMJUZ -U XJMM IBWF BMTP UIF BEWBOUBHF UP CF NPSF FBTZ USBOTGPSNBCMF JOUP B OVNFSJDBM TDIFNF 8P UIJT FOE XF JOUSPEVDF B WBSJBCMF UIBU EFTDSJCFT EFWJBUJPOT GSPN UIF BWFSBHF SFGFSFODF JOJUJBM EFQUI 6 B DPOTFSWFE RVBOUJUZ! D E A # 6D E A 6 -OTFSUJOH UIJT JOUP POF DBO TFQBSBUF PO UIF SJHIU IBOE TJEF MJOFBS BOE OPOMJOFBS FYQSFTTJPOT JO ! #
6 6 6 G8
XJUI UIF OPOMJOFBS DVSSFOU G8 # > >
Three Dimensional Film Dynamics
157
BOE UIF BCCSFWJBUJPOT 6 # 2
> # 6 6
> # 6 6 6 6
&PUI GVODUJPOT > BOE > WBOJTI BT *SPN JU JT FWJEFOU IPX UIF MJOFBSJ[FE QSPCMFN OFBS 6 MPPLT 3OF IBT KVTU UP ESPQ UIF OPOMJOFBS FYQSFTTJPO G8 BOE PCUBJOT B MJOFBS FRVBUJPO PG UIF GPSN 8IF TBNF BOTBU[ VTFE UIFSF ZJFMET UIF EJTQFSTJPO SFMBUJPO #
6 6 9 9
%O JOTUBCJMJUZ PDDVST JG UIF >EJVTJPO DPF DJFOU JT MFTT UIBO [FSP UIF EJTQFSTJPO SFMBUJPO UIFO IBT UIF GPSN PG UIF TPMJE MJOF JO H BOE JT FYBDUMZ UIBU PG B UZQF -- JOTUBCJMJUZ DPNQBSF H SJHIU GSBNF 8IJT PG DPVSTF DPJODJEFT XJUI UIF SFBTPOJOH PG TFDUJPO %O JOTUBCJMJUZ PDDVST XIFSF UIF TMPQF PG UIF QSFTTVSF JT OFHBUJWF 2VNFSJDBMMZ POF OET GSPN 6 # UIF UXP MJNJUT GPS UIF TQFDJBM DIPJDF PG # # ! #
6 # 6 #
6 # 6 #
4,%1)#!+ 2.+43).-2 -O H XF QSFTFOU TPMVUJPOT PG UIF GVMMZ OPO MJOFBS FR GPS UIF QBSBNFUFST PG H BOE TFWFSBM JOJUJBM EFQUIT 6 %T JOJUJBM DPOEJUJPO B SBOEPN EJTUSJCVUJPO BSPVOE UIF BWFSBHF EFQUI 6 XBT DIPTFO -O UIF FBSMZ TUBHF PG UIF FWPMVUJPO TUSVDUVSFT IBWJOH B MFOHUI TDBMF PG UIF DSJUJDBM XBWF MFOHUI # 9 PDDVS XIFSF 9 JT UIF XBWF OVNCFS PG UIF GBTUFTU HSPXJOH NPEF 9 # 8IJT DBO CF DBMMFE >MJOFBS QIBTF TJODF UIF BNQMJUVEFT BSF TUJMM TNBMM BOE OPOMJOFBSJUJFT QMBZ OP JNQPSUBOU SPMF 8IF TUSVDUVSF HSPXT PO UIF UZQJDBM UJNF TDBMF # 9 # # 6 6 6 XIJDI JT JOWFSTF UP UIF TRVBSF PG UIF TMPQF PG UIF EJTKPJOJOH QSFTTVSF 8IJT JT UIF SFBTPO XIZ QBUUFSO GPSNBUJPO JO UIJDLFS MNT UBLFT NVDI MPOHFS SJHIU DPMVNO JO H %T B DPOTFRVFODF UIF TNBMM TDBMF MJOFBS QIBTF TUSVDUVSFT BSF PWFSMBZFE CZ IPMFT DSFBUFE CZ DFSUBJO TFFET TFF BMTP OFYU
158
Michael Bestehorn
)'41% 8JNF TFSJFT GPVOE CZ OVNFSJDBM JOUFHSBUJPO PG GPS 6 # MFGU DPMVNO NJEEMF BOE SJHIU 0JHIU BSFBT DPSSFTQPOE UP FMFWBUFE SFHJPOT PG UIF TVSGBDF
Three Dimensional Film Dynamics
159
QBSBHSBQI %GUFS UIF MJOFBS QIBTF UIF QPTJUJPO PG 6 XJUI SFTQFDU UP UIF 1BYXFMM QPJOU TIPXO JO H JT EFDJTJWF -G 6 6 IPMFT BSF GPSNFE GPS 6 6 POF OET ESPQT -G 6 6 NB[FMJLF QBUUFSOT BSF PCUBJOFE JO GPSN PG CFOEFE SBUIFS JSSFHVMBS TUSJQFT TFF H NJEEMF DPMVNO -O B MBTU TUSPOHMZ OPOMJOFBS QIBTF TPDBMMFE (+,'"' JT PCTFSWFE 8IJT JT B TMPX JODSFBTF PG UIF MFOHUI TDBMF PG UIF TUSVDUVSFT IPMFT ESPQT PS NB[FT BDDPNQBOJFE CZ GVTJPO PG TNBMMFS PCKFDUT UP MBSHFS POFT 8IF OBM TUSVD UVSF MPOH UJNF MJNJU JT PGUFO B TJOHMF FOUJUZ POF CJH ESPQ PS IPMF XIJDI JT OBMMZ UJNF TUBCMF 8IF XIPMF TQBUJPUFNQPSBM FWPMVUJPO JT USBOTJFOU BOE DBO CF GPSNVMBUFE BT B HSBEJFOU EZOBNJDT 8IF QPUFOUJBM QMBZT UIF SPMF PG B HFOFSBMJ[FE GSFF FOFSHZ SFBDIJOH JUT NJOJNVN JO UIF TUFBEZ FOE TUBUF 8IF DSJUJDBM QSFTTVSF BT XFMM BT 6 DBO CF GPVOE CZ B 1BYXFMM DPOTUSVD UJPO JO H 3OF IBT 6 E6 ' 6 6 #
XJUI 6 6 BT MFGU SJHIU JOUFSTFDUJPO PG ' XJUI UIF 1BYXFMM MJOF! 6 # 6 # ' *SPN UIFTF UISFF DPOEJUJPOT POF DBO EFUFSNJOF ' BOE UIF UISFF JOUFSTFDUJPO QPJOUT CZ OVNFSJDBM JUFSBUJPO! ' #
6 #
6 #
6 #
1FUBTUBCMF SFHJPO BOE OVDMFBUJPO 8IF BU MN JT VOTUBCMF XJUI SFTQFDU UP JOOJUFTJNBM EJTUVSCBODFT JG 6 JT JO UIF SFHJPO CFUXFFO 6 BOE 6 3O UIF PUIFS IBOE UXP NFUBTUBCMF EPNBJOT FYJTU XIFSF UIF BU MN JT TUBCMF BMUIPVHI UIF GSFF FOFSHZ DPVME CF MPXFSFE CZ QBUUFSO GPSNBUJPO 8IFO B OJUF EJTUVSCBODF JT OFDFTTBSZ XIJDI DBO CF DBVTFE CZ TFFET DPNJOH GPS JOTUBODF GSPN JNQVSJUJFT 7VDI B QSPDFTT JT DBMMFE '.%-"(' BOE DBO CF TFFO JO UIF SJHIU DPMVNO PG H 8IFSF UIF TFFET XFSF QSPWJEFE CZ UIF SBOEPN EPU JOJUJBM DPOEJUJPOT BOE UXP IPMFT BSF GPSNFE &PUI QSPDFTTFT OVDMFBUJPO BOE XFUUJOH DPODVS JO UIJT SFHJPO BOE JU JT B RVFTUJPO PG UJNF TDBMFT XIJDI POF FNFSHFT STU -O FYQFSJNFOUT UIF GPSNBUJPO PG IPMFT CZ OVDMFBUJPO JT TFFO RVJUF PGUFO 8IF SFBTPO JT UIBU UIF NFUBTUBCMF IPMF SFHJPO JT NVDI MBSHFS DPNQBSFE UP UIBU PG ESPQT TFF H 4IZTJDBM WBMVFT 8P HFU BO JEFB PG UIF TQBUJBM BOE UFNQPSBM TDBMFT PG UIF FYQFSJNFOUT POF
160
Michael Bestehorn
IBT UP SFTDBMF UP EJNFOTJPOBM WBSJBCMFT *PS UIF ,BNBLFS DPOTUBOU UIJT NFBOT ] # 2 XIFSF UIF WBSJBCMFT CFBSJOH B UJMEF BSF OPOEJNFOTJPOBM JO PVS TJNVMBUJPOT FH ] # 7JODF XF DIPTF > # POF DBO EFUFSNJOF BOE GSPN >#
2 # # . 2
UPHFUIFS XJUI ! # 2
]
#
]
2
/OPXJOH UIF IPSJ[POUBM TDBMF . DBO CF TQFDJFE!
] . # 2 # 2 8P DPNQVUF UIF TDBMJOH XF OFFE WBMVFT GPS UIF ,BNBLFS DPOTUBOU BOE GPS UIF EFQUI 2 *SPN MJUFSBUVSF XF UBLF #
"
*PS UIF EFQUI PG UIF QSFDVSTPS MN 6 UIJT HJWFT BCPVU ON 8IFO UIF EFQUIT XBUFS BT B XPSLJOH TVCTUBODF PG UIF SVOT PG H DPSSFTQPOE UP 2 ON
MFGU
2 ON
NJEEMF
2 ON SJHIU
T
NJEEMF
T SJHIU
*PS UIF UJNF TDBMFT T MFGU
8IJT NFBOT UIBU UIF FWPMVUJPO TIPXO JO UIF MFGU DPMVNO UBLFT BCPVU UXP TFDPOET UIF NJEEMF POF TFWFO TFDPOET BOE PO UIF SJHIU IBOE TJEF NJOVUFT *JOBMMZ XF NFOUJPO UIF IPSJ[POUBM TDBMFT! . N MFGU
. N NJEEMF
. N SJHIU
DPSSFTQPOEJOH UP UIF IPSJ[POUBM EJNFOTJPOT PG UIF TIPXO BSFBT Y NFTI QPJOUT XJUI EJTUBODF D # ! N MFGU
N NJEEMF
N SJHIU
Three Dimensional Film Dynamics
161
73%1-!++8 (%!3%$ 3()- +,2
-O UIF MBTU TFDUJPO XF TBX UIBU GPS FYUSFNFMZ UIJO MNT PG UIJDLOFTT JO UIF SBOHF PG TPNF ON UIF FFDUJWF NPMFDVMBS JOUFSBDUJPO CFUXFFO UIF GSFF TVSGBDF BOE UIF TPMJE TVQQPSU QIFOPNFOPMPHJDBMMZ EFTDSJCFE CZ UIF EJTKPJOJOH QSFTTVSF QSPWJEFT BO JOTUBCJMJUZ NFDIBOJTN %OPUIFS POF JT QSFTFOU JG UIF VJE JT IFBUFE GSPN CFMPX 8IFO UIF 1BSBOHPOJ FFDU DBO CF SFTQPOTJCMF GPS B EFGPSNBUJPO JOTUBCJMJUZ BT BMSFBEZ NFOUJPOFE JO TFDUJPO TFF H 2FQPNOZBTIDIZ FU BM 8IF QVSQPTF PG UIJT TFDUJPO JT UP FYBNJOF B VJE MN JO UISFF EJNFOTJPOT VOEFS B WFSUJDBM UFNQFSBUVSF HSBEJFOU JODMVEJOH B TUBCJMJ[JOH FFDU XIJDI JT PCUBJOFE CZ JOUSPEVDJOH B EJTKPJOJOH QSFTTVSF XIJDI CFDPNFT FFDUJWF GPS WFSZ TNBMM MN UIJDLOFTT -OTUFBE PG SVQUVSF BOE DPNQMFUFMZ ESZ EPNBJOT UIF TPMJE TVQQPSU JT BMXBZT DPWFSFE CZ B UIJO QSFDVSTPS MN PG UIJDLOFTT PG TPNF ON 8IJT BMMPXT UP TUVEZ UIF MPOHUJNF FWPMVUJPO PG B MN VOTUBCMF EVF UP UIF 1BSBOHPOJ FFDU -O BEEJUJPO XF TIBMM BOBMZ[F UIF TQBUJPUFNQPSBM FWPMVUJPO PG UIF MN TVSGBDF XIFO B IPSJ[POUBM GPSDF JT BQQMJFE FYUFSOBMMZ 8IJT TJUVBUJPO JT GPVOE XIFO UIF VJE MBZFS JT JODMJOFE XJUI SFTQFDU UP UIF WFSUJDBM ;F EJTDVTT UIF GPSNBUJPO PG QFSJPEJD TUSVDUVSFT QFSQFOEJDVMBS UP UIF TMPQF BT XFMM BT UIF JOTUBCJMJUZ PG GSPOUT NPWJOH EPXOXBSET UIF JODMJOFE QMBOF 1PSF EFUBJMT DBO CF GPVOE JO &FTUFIPSO FU BM ()- +, %04!3).- !-$ /!1!,%3%12 8BOHFOUJBM TVSGBDF TUSFTTFT DPNF JOUP QMBZ JG UIF TVSGBDF UFOTJPO JT BTTVNFE UP CF QSPQPSUJPOBM UP UIF TVSGBDF UFNQFSBUVSF + DPNQBSF 8P EFUFSNJOF UIF TVSGBDF UFNQFSBUVSF POF IBT UP TPMWF UIF IFBU FRVBUJPO D XIJDI SFBET JO MPXFTU PSEFS PG UIF MVCSJDBUJPO BQQSPYJNBUJPO TJNQMZ + F #
8IJT JT TPMWFE CZ B MJOFBS QSPMF TVCKFDU UP UIF CPVOEBSZ DPOEJUJPOT + # +
+ F # 7 + 6
XJUI UIF &JPU OVNCFS 7 8IF TPMVUJPO SFBET + F # +
7 + F 7 6
8P DPOOFDU XJUI TFDUJPO XF JOUSPEVDF UIF UFNQFSBUVSF HSBEJFOU PG UIF DPOEVDUJOH IFSF VOEFGPSNFE 6 # TUBUF BDDPSEJOH UP + # + #
7 + + + # 2 2 7
162
Michael Bestehorn
BOE DBO FYQSFTT BU UIF TVSGBDF BT + 6 # + # +
2 7 6 7 6
-OTFSUJOH UIJT JO BOE UIFO JO SFTVMUT JO UIF UIJO MN FRVBUJPO JODMVEJOH TVSGBDF UFOTJPO BOE HSBWJUZ &VSFMCBDI FU BM
E $/ 7 6 # 6 6 6 E6 7 6 XJUI UIF BEEJUJPOBM OVNCFST #
2
#
5 2
BT 'SJTQBUJPO OVNCFS TVSGBDF UFOTJPO BOE TUBUJD &POE OVNCFS HSBWJUZ SFTQFDUJWFMZ 2PUF UIBU JT JO B EJFSFOU TDBMJOH UIBO 2PX 6 BOE D E BSF JO VOJUT PG 2 UJNF TDBMFT XJUI 2 -O )R UIF FFDUJWF NPMFDVMBS JOUFSBDUJPO CFUXFFO TVCTUSBUF BOE MN TVSGBDF JT UBLFO JOUP BDDPVOU CZ UIF EJTKPJOJOH QSFTTVSF 6 -U XJMM CF EJTDVTTFE JO EFUBJM CFMPX % MJOFBS TUBCJMJUZ BOBMZTJT PG UIF BU MN XJUIPVU EJTKPJOJOH QSFTTVSF # TIPXT UIBU JU HFUT VOTUBCMF JG $/ FYDFFET B DFSUBJO DSJUJDBM WBMVF $/ #
7 # ! 7
XIFSF ! # JT UIF %"%( '.&+ -G $/ FYDFFET $/ B UZQF -- JOTUBCJMJUZ PDDVST UIF EJTQFSTJPO SFMBUJPO IBT UIF TBNF GPSN UIBO UIBU PG H 3O UIF MJOFBS TIPSUUJNF SFHJNF POF FYQFDUT QBUUFSOT XJUI UIF UZQJDBM MFOHUI TDBMF . # XIFSF JT EFOFE BT BCPWF BT UIF SFEVDFE EJTUBODF GSPN UISFTIPME # $/ $/ $/
4SFWJPVT XPSL CZ 3SPO TIPXT UIBU BCPWF UIF POTFU PG UIF JOTUBCJMJUZ IPMFT BSF GPSNFE BOE MN SVQUVSF PDDVST BGUFS B OJUF FWPMVUJPO UJNF (% $)2*.)-)-' /1%2241% 2PX XF FYUFOE UIF FWPMVUJPO FRVBUJPO CZ B EJTKPJOJOH QSFTTVSF UIBU JT PG SFQFMMJOH DIBSBDUFS %T BCPWF JU TUBCJMJ[FT B WFSZ UIJO MN BOE BWPJET MN SVQUVSF UIBU PUIFSXJTF XPVME SFTUSJDU UIF
Three Dimensional Film Dynamics
163
TJNVMBUJPOT UP JOWFTUJHBUJPOT PG UIF TIPSUUJNF CFIBWJPS POMZ ;JUI UIJT FYUFOEFE NPEFM XF BSF BCMF UP TUVEZ QBUUFSO GPSNBUJPO JO UISFF EJNFOTJPOT JO UIF MPOHUJNF MJNJU %HBJO XF UBLF B EJTKPJOJOH QSFTTVSF PG UIF WBO EFS ;BBMT GPSN 6 #
6
XIFSF -O PVS TDBMJOH POF OET UIF SFMBUJPO #
2
XIFSF JT B EJNFOTJPOBM ,BNBLFS DPOTUBOU ;JUI UIF SBOHF PG VOTUBCMF BU MNT JT BMTP CPVOEFE GSPN CFMPX JF BU MNT XJUI UIF IFJHIU 6 # 6 BSF VOTUBCMF JG 6 6 6
8IF UXP WBMVFT 6 BOE 6 BSF OBNFE ,)"'(%, BOE UIF TBNF BT 6 BOE 6 PG TFDUJPO *PS UIJDL MNT JO UIF NJMMJNFUFS SBOHF POF OET UIF TDBMJOH 6 2 8IF WBMVFT PG 6 BSF WFSZ TNBMM JO UIF SBOHF PG N TFF 8BCMF %QQSPYJNBUFMZ BU QBSUT PG UIF MN QSPMF XIJDI IBWF B UIJDLOFTT JO UIF TUBCMF SFHJPO CFMPX 6 DBO CF DPOTJEFSFE BT UIF QSFDVSTPS MN ;F OPUF UIBU UIF JODMVTJPO PG UIF EJTKPJOJOH QSFTTVSF DIBOHFT UIF WBMVF GPS $/ UP $/ # ,FSF XF BQQSPYJNBUFE 7 CZ XIJDI JT HPPE GPS TNBMM &JPU OVNCFS JF GPS B UIFSNBMMZ BMNPTU JOTVMBUJOH VQQFS CPVOEBSZ ;F TIBMM VTF UIJT BQQSPYJNBUJPO GPS UIF SFTU PG UIJT TFDUJPO +4)$ /!1!,%3%12 8P DPNQBSF XJUI UIF FYQFSJNFOUT XF MJTU JO 8BCMF UIF WBMVFT PG UIF OPOEJNFOTJPOBM QBSBNFUFST JOUSPEVDFE BCPWF BT XFMM BT UIPTF PG TPNF JNQPSUBOU QSPQFSUJFT PG UIF VJE MN 8P EFNPOTUSBUF BMTP UIF EFQFOEFODF PO UIF MN UIJDLOFTT XF DIPPTF UIF GPVS DBTFT XBUFS BOE TJMJDPOF PJM FBDI XJUI MBZFS UIJDLOFTTFT PG NN BOE *PS UIF ,BNBLFS DPOTUBOU XF UPPL UIF WBMVF # " GSPN UIF MJUFSBUVSF 8IF UZQJDBM MFOHUI TDBMF . 2 JT DPNQVUFE GSPN GPS # -U JT SFNBSLBCMF UIBU GPS UIJO MNT UIF DSJUJDBM 1BSBOHPOJ OVNCFS BT XFMM BT UIF BQQMJFE UFNQFSBUVSF HSBEJFOUT TFFN UP CF WFSZ TNBMM 8IJT NFBOT JO SFBM FYQFSJNFOUT POF XPVME VTVBMMZ FYDFFE UIF DSJUJDBM QPJOU CZ B GBDUPS PG TPNF UIPVTBOET ,PXFWFS JO B MN
164
Michael Bestehorn
PG NN EFQUI UIF WBMVF PG $ JO TJMJDPOF PJM JT BMSFBEZ NVDI MBSHFS UIBO UIBU GPS TNBMM TDBMF DPOWFDUJPO BCPVU 'POTFRVFOUMZ UP PCUBJO B QVSF TVSGBDF JOTUBCJMJUZ XJUIPVU TNBMM DPOWFDUJWF DFMMT IFYBHPOT UIF MJRVJE EFQUI TIPVME CF CFMPX NN ;F OPUF UIBU JO UIF DBTF PG B VJE EFQUI XIFSF CPUI JOTUBCJMJUJFT NBZ PDDVS QBUUFSO GPSNBUJPO JT FYQFDUFE UP CF NVDI NPSF JOWPMWFE BOE UIF TNBMM TDBMF TUSVDUVSF DBOOPU MPOHFS CF FMJNJOBUFE VTJOH UIF MVCSJDBUJPO BQQSPYJNBUJPO -O UIJT DBTF UIF GVMM TZTUFN JODMVEJOH 2BWJFS 7UPLFT BT XFMM BT IFBU FRVBUJPO IBT UP CF DPOTJEFSFE )YQFSJNFOUT JO UIJT DPEJNFOTJPOUXP SFHJPO IBWF CFFO QFSGPSNFE CZ :BO ,PPL FU BM !"+% :BMVFT PG UIF QBSBNFUFST GPS XBUFS BOE TJMJDPOF PJM GPS UXP EJFSFOU EFQUI PG UIF MN XBUFS
TJMJDPOF PJM 1*
+ $ .2 6 2
2 # :
: :
2 # : : :
2 # : : :
2 # : : :
.+%2 .1 $1./2 *PS UIF FYQFSJNFOU BT XFMM BT GPS UIF OVNFSJDBM TPMVUJPOT PG UIF OFYU QBSBHSBQI JU JT JNQPSUBOU UP LOPX XIFUIFS ESPQT PS IPMFT BSF GPSNFE JO UIF VOTUBCMF SBOHF PG UIF BU MN 8P FMBCPSBUF UIJT GVSUIFS XF STU JOUSPEVDF UIF QPUFOUJBM
- =6? # 6 6MO6 6 EDEE 6 XIFSF UIF SFEVDFE ,BNBLFS DPOTUBOU #
Three Dimensional Film Dynamics
165
)'41% 8IF EJTKPJOJOH QSFTTVSF - 66 BDDPSEJOH UP GPS VOJGPSN 6 BOE EJFSFOU WBMVFT PG BOE # 8IF DSJUJDBM MN EFQUI 6 JT PCUBJOFE CZ B 1BYXFMMFRVBMBSFB DPOTUSVDUJPO GPS FBDI QPUFOUJBM -G 6 UIJDL MN IPMFT BSF FOFSHFUJDBMMZ QSFGFSSFE PUIFSXJTF ESPQT XJMM CF GPSNFE JO UIF OPOMJOFBS TUBHF &FUXFFO UIF UXP FYUSFNB UIF TQJOPEBMT UIF MN JT BCTPMVUFMZ VOTUBCMF CFUXFFO 6 BOE 6 UIF CJOPEBMT JU JT CJTUBCMF
FOUFST BT UIF POMZ QBSBNFUFS UIBU EFQFOET PO UIF NBUFSJBM ;JUI UIF IFMQ PG UIF EJTKPJOJOH QSFTTVSF SFBET ' 6 #
- 6 6
BOE UIF UIJO MN FRVBUJPO DBO CF XSJUUFO JO UIF GPSN
- 6 6 # 6 6
XIFSF EFOPUFT UIF GVODUJPOBM EFSJWBUJWF -U DBO CF FBTJMZ TIPXO UIBU - JT NPOPUPOJDBMMZ EFDSFBTJOH JG 6 EFWFMPQT BT 8IFO - IBT UIF QSPQFSUJFT PG B 0ZBQVOPW GVODUJPOBM PS B GSFF FOFSHZ BOE B 1BYXFMM DPOTUSVDUJPO JO UIF ' 6EJBHSBN DBO CF VTFE UP EFUFSNJOF UIF NPTU TUBCMF IPNPHFOFPVT TUBUF DPNQBSF H -G XF Y UIF EFQUI PG UIF BU MN XJUI 6 # UIF TIBQF PG UIF QPUFOUJBM DBO EFQFOE POMZ PO UIF WBMVFT PG BOE *JH TIPXT QMPUT PG UIF QSFTTVSF E - 6 GPS TFWFSBM WBMVFT PG UIFTF QBSBNFUFST -G 6 # MJFT PO UIF MFGUIBOETJEF PG UIF DSJUJDBM MN EFQUI 6 # 6 1BYXFMM QPJOU ESPQT BSF
166
Michael Bestehorn
)'41% 4IBTF EJBHSBN JO UIF QBSBNFUFS QMBOF 8IF DPEJNFOTJPOPOF MJOF SFTVMUT GSPN UIF DPOEJUJPO 6 # 6 DG *JH BOE UFYU 7PMWJOH UIF GVMMZ UJNF EFQFOEFOU FR OVNFSJDBMMZ POF PCUBJOT NB[FT TRVBSFT IPMFT VQUSJBOHMFT BOE ESPQT EPXOUSJBOHMFT JO FYDFMMFOU BHSFFNFOU XJUI UIF UIFPSZ 8IF JOTFU TIPXT UIBU UIFSF JT B OJUF BCPWF XIJDI ESPQT NBUIFNBUJDBMMZ FYJTU FWFO BU #
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
),% $%/%-$%-3 -4,%1)#!+ 2.+43).-2
2PSNBM *PSN %T JO TFDUJPO XF STU USBOTGPSN FR JOUP B LJOE PG OPSNBM GPSN -OUSPEVDJOH UIF SFEVDFE DPOUSPM QBSBNFUFS BOE BGUFS SFTDBMJOH PG TQBDF
Three Dimensional Film Dynamics
167
BOE UJNF WBSJBCMFT JU SFBET B # B B =4 B B?
,FSF BD E A # 6D E A JT UIF OPSNBMJ[FE TIJGUFE IFJHIU XJUI WBOJTIJOH NFBO WBMVF 7QBDF BOE UJNF BSF TDBMFE BHBJO UP UIF QSJNFT BSF PNJUUFE JO D # D
A # A
-O 4 B TUBOET GPS UIF PQFSBUPS GVODUJPO
B 4 B # B B B B
XIJDI WBOJTIFT XJUI B 8IF MJOFBSMZ GBTUFTU HSPXJOH NPEF IBT UIF XBWF WFDUPS 9 # BOE HSPXT XJUI UIF UZQJDBM SBUF # 8IF OPOMJOFBS QBSU BT XFMM BT UIF MJOFBS POF IBT UIF GPSN PG UIF EJWFSHFODF PG B VY BOE DMFBSMZ DPOTFSWFT UIF NFBO WBMVF PG B UP [FSP 6FTVMUT! UIF IPSJ[POUBM MBZFS 8P TIPX UIF UFNQPSBM FWPMVUJPO PG UIF MN XF QSFTFOU SVOT GPS TFWFSBM QBSBNFUFS WBMVFT JO UIF QMBOF *PS BMM SVOT UIBU GPMMPX SBOEPN EPU JOJUJBM DPOEJUJPOT IBWF CFFO VTFE XJUI WBOJTIJOH NFBO WBMVF ;F UBLF B MBSHF BTQFDU SBUJP PG JO VOJUT PG FR XIBU DPSSFTQPOET UP BCPVU N GPS UIF TJMJDPO PJM PG 8BCMF 8IJT PG DPVSTF JT B WFSZ MBSHF WBMVF FYQSFTTJOH UIF IVHF TDBMF PG UIF TUSVDUVSF XIJDI JT EVF UP UIF TNBMM TVQFSDSJUJDBMJUZ PG # 7UBSUJOH XJUI UIF SFMBUJWFMZ MBSHF WBMVF PG # SBUIFS UIJO MN ESPQT BSF FYQFDUFE FWFO BU POTFU 8IJT DBO CF TFFO JO UIF FWPMVUJPO PG H MFGU XIFSF MBSHFS BOE MBSHFS ESPQT BSF GPVOE XJUI JODSFBTJOH UJNF ;F OPUF UIBU UIF FWPMVUJPO UJNFT BSF FYUSFNFMZ MPOH BMTP B DPOTFRVFODF PG UIF TNBMM TVQFSDSJUJDBMJUZ 2FYU XF VTF UIF TNBMMFS WBMVF # DPSSFTQPOEJOH UP B UIJDLFS MN ,PMFT BSF GPSNFE OPX RVJUF FBSMZ TFF H SJHIU %T DBO CF BMTP TFFO B TNBMM EFQSFTTJPO JT GPSNFE BMPOH UIF CPSEFS PG FBDI IPMF 8IF MPOHUJNF CFIBWJPS DBO CF DPNQBSFE XJUI UIBU PG ESPQT 3OF PCTFSWFT B DPBSTFOJOH PG UIF IPMFT BT GPS UIF ESPQT )WFOUVBMMZ BMM IPMFT ESPQT NFSHF JOUP B TJOHMF CJH IPMF ESPQ ,PXFWFS UIJT QSPDFTT NBZ UBLF B WFSZ MPOH UJNF EFQFOEJOH PO UIF TFWFSBM VJE QBSBNFUFST BOE UIF HFPNFUSZ PG UIF MBZFS
168
Michael Bestehorn
)'41% 0FGU! UJNF TFSJFT GPVOE CZ OVNFSJDBM JOUFHSBUJPO PG JO UIF ESPQ SFHJNF BU # BOE # 8IF OVNFSJDBM SFTPMVUJPO JT NFTI QPJOUT UIF BTQFDU SBUJP MFOHUI UP EFQUI (BSL SFHJPOT DPSSFTQPOE UP BO FMFWBUFE TVSGBDF 4FSJPEJD CPVOEBSZ DPOEJUJPOT BSF BTTVNFE JO UIF MBUFSBM EJSFDUJPOT 6JHIU! UJNF TFSJFT JO UIF IPMF SFHJNF BU # BOE #
)'41% 8IF TPMJE MJOFT TIPX UIF UZQJDBM TDBMJOH PG UIF NFBO NPEVMVT PG UIF XBWF WFDUPS JO UIF UFNQPSBM FWPMVUJPO GPS QBSBNFUFST BT JO H 8IF TDBMJOH FYQPOFOU GPS CPUI TFSJFT JT UIF TBNF BT JOEJDBUFE CZ UIF EBTIFE MJOFT *PS UIJT DPNQVUBUJPO XF VTFE UXJDF UIF TZTUFN TJ[F PG H BOE B OVNFSJDBM SFTPMVUJPO PG QPJOUT
Three Dimensional Film Dynamics
169
)'41% 0FGU! 8JNF TFSJFT JO UIF NB[F SFHJNF BU UIF DPEJNFOTJPOPOF MJOF PG H # # 6JHIU! 7NBMM ESPQT JOTJEF CJH IPMFT BSF GPSNFE JG UIF IFBUJOH JT TVEEFOMZ JODSFBTFE BOE DSPTTFT UIF QIBTF MJOF PG H 8IF TFSJFT XBT TUBSUFE XJUI # BOE # %GUFS A # XF JODSFBTFE UP #
8P FYBNJOF UIF UFNQPSBM CFIBWJPS GVSUIFS XF DPNQVUF UIF NFBO NPE VMVT PG UIF XBWF WFDUPS JO *PVSJFS TQBDF BDDPSEJOH UP E G9 B G9 9 # E G9 B *SPN H B TDBMJOH MBX PG UIF GPSN 9 # 1A
DBO CF DMFBSMZ FYUSBDUFE -U JT SFNBSLBCMF UIBU UIF FYQPOFOU GPS CPUI TFSJFT JF ESPQT BOE IPMFT JT BMNPTU UIF TBNF ;F GPVOE JU UP CF 2FYU XF QSFTFOU B QBSBNFUFS QBJS EJSFDUMZ PO UIF DSJUJDBM MJOF PG H %T FYQFDUFE UIF EFDJTJPO CFUXFFO ESPQT BOE IPMFT JT OPU DMFBS BOE B LJOE PG NB[F TUSVDUVSF SFNBJOT GPS MPOH UJNFT TFF H MFGU -O TFDUJPO XF EJTDVTTFE UIF QPTTJCJMJUZ PG B TFDPOEBSZ JOTUBCJMJUZ PG IPMFT XJUI SFTQFDU UP ESPQT JG JT JODSFBTFE BOE UIF DPEJNFOTJPOPOF MJOF PG H JT DSPTTFE 8P FYBNJOF UIJT TJUVBUJPO GVSUIFS XF DPNQVUF B UFNQPSBM FWPMVUJPO PG B SBOEPNMZ EJTUSJCVUFE JOJUJBM QBUUFSO XJUI # BOE # JO UIF IPMF SFHJPO H SJHIU QBOFM STU GSBNF TIPXT UIF GPSNBUJPO PG IPMFT %GUFS TXJUDIJOH UP B MBSHFS WBMVF JO UIF ESPQ SFHJPO TNBMM ESPQT
170
Michael Bestehorn
BSF GPSNFE SBUIFS RVJDLMZ JOTJEF UIF IPMFT -O UIJT XBZ ESPQT XJUI B TVQFS TUSVDUVSF MFGU GSPN UIF IPMFT FNFSHF
(% )-#+)-%$ +!8%1
-O UIJT TFDUJPO XF TUVEZ UIF JO VFODF PG B DPOTUBOU FYUFSOBM GPSDF JO B DFSUBJO IPSJ[POUBM EJSFDUJPO 8IJT DBO CF EVF FJUIFS UP BO JODMJOBUJPO PG UIF MBZFS CZ BO BOHMF PS UP BO BEEJUJPOBM IPSJ[POUBM UFNQFSBUVSF HSBEJFOU ,FSF XF TIBMM DPODFOUSBUF PO UIF STU DBTF % DPOTUBOU CPEZ GPSDF HJWFT BO BEEJUJPOBM UFSN PG UIF GPSN
TJO G; 6 PO UIF SJHIU IBOE TJEF PG ,FSF G; JT UIF EJSFDUJPO PG JODMJOBUJPO *PS UIF TJNVMBUJPO QFSJPEJD CPVOEBSZ DPOEJUJPOT BSF LFQU JO BMM EJSFDUJPOT 8IF JODMJOBUJPO FWFO CZ B WFSZ TNBMM BOHMF DPNQMFUFMZ DIBOHFT UIF QBUUFSO NPSQIPMPHZ JO UIF MPOH UJNF MJNJU 8IJT JT TIPXO JO H MFGU XIFSF BMM QBSBNFUFST BSF FRVBM UP UIBU PG H MFGU CVU UIF QMBOF XBT JODMJOFE CZ BO BOHMF PG PSEFS GPS B TJMJDPOF MN PG UIJDLOFTT NN %U UIF CFHJOOJOH CPUI FWPMVUJPOT TFFN UP CF TJNJMBS CVU BGUFS A JO UIF JODMJOFE MN DPBSTFOJOH JT SFUBSEFE PSUIPHPOBMMZ UP UIF JODMJOBUJPO BOE OBMMZ B DFSUBJO XBWFMFOHUI JT TUBCJMJ[FE 8IF TUSJQFT PSJFOUBUF NPSF BOE NPSF BMPOH UIF EJSFDUJPO PG JODMJOBUJPO GPSNJOH B TUSVDUVSF PG NPSF PS MFTT FRVBMMZ TQBDFE QJQFT PS SJWVMFUT XIFSF UIF VJE PXT EPXO JOTJEF *JOBMMZ XF TUVEZ UIF JO VFODF PG B DPOTUBOU GPSDF QFSQFOEJDVMBS UP B DIBOOFM PG EFQSFTTFE MJRVJE 8P UIJT FOE XF TUBSU UIF OVNFSJDBM JOUFHSBUJPO XJUI UIF JOJUJBM DPOEJUJPO GPS E # BD E A # # GPS # E # XIFSF # JT UIF UPUBM MFOHUI PG UIF MBZFS &PUI IFJHIUT UIF FMFWBUFE BT XFMM BT UIF EFQSFTTFE POF MBZ PVUTJEF UIF TQJOPEBM SFHJPO JF UIF BU MN JO UIFTF QBSUT JT TUBCMF 8P BWPJE UIF VOQIZTJDBM IPNPHFOFJUZ JO DEJSFDUJPO PG UIF JOJUJBM DPOEJUJPO XF BEE TNBMM VDUVBUJPOT PG BCPVU QFS DFOU 8IF MBZFS JO UIJT OVNFSJDBM FYQFSJNFOU JT JODMJOFE CZ BCPVU JG UIF VJE JT B TJMJDPOF PJM MN XJUI EFQUI NN 8IFO UIF DIBOOFM NPWFT XJUI UIF BWFSBHF WFMPDJUZ PG NNTFD %GUFS BCPVU A # DPSSFTQPOEJOH UP BCPVU TFD B QIBTF JOTUBCJMJUZ PG UIF CBDL GSPOU PG UIF DIBOOFM PS UIF MFBEJOH GSPOU PG UIF FMFWBUFE QBSU DBO CF DMFBSMZ PCTFSWFE JO H SJHIU QBOFM 0BUFS PO UIF PQQPTJUF GSPOU HFUT VOTUBCMF XJUI B TNBMMFS XBWFMFOHUI %U UIJT TUBHF CPUI GSPOUT BSF XFMM TFQBSBUFE BOE DBO CF DPOTJEFSFE BT CFJOH JOEFQFOEFOU GSPN FBDI PUIFS 8IJT DIBOHFT JG UIF GSPOU JOTUBCJMJUJFT FWPMWF GVSUIFS 8IF DIBOOFM
Three Dimensional Film Dynamics
171
)'41% 0FGU! 4BUUFSO GPSNBUJPO JO UIF JODMJOFE MN 4BSBNFUFST BSF UIPTF PG H MFGU CVU UIF VJE JT WFSZ TMJHIUMZ JODMJOFE JO WFSUJDBM EJ SFDUJPO %GUFS UIF MJOFBS TUBHF UIF QBUUFSO HFUT BOJTPUSPQJD BOE OBMMZ B QFSJPEJD TUSVDUVSF PG QBSBMMFM VJE QJQFT XJUI B DFSUBJO XBWFMFOHUI JT TUBCJ MJ[FE 6JHIU! )WPMVUJPO PG B DIBOOFM PO BO JODMJOFE QMBOF 4BSBNFUFST BSF UIPTF PG H SJHIU JO UIF IPMF SFHJNF &PUI FEHFT PG UIF DIBOOFM HFU VOTUBCMF PO EJFSFOU UJNF TDBMFT 8IF USBJMJOH FEHF JT EJTUVSCFE GBTUFS XJUI B MBSHFS XBWFMFOHUI *JOBMMZ UIF UXP FEHFT NFFU PO TFWFSBM QPJOUT BOE UIF DIBOOFM TFQBSBUFT
HFUT NPSF BOE NPSF SFTUSJDUFE CZ UIF SFTQFDUJWF BEWBODJOH BOE SFDFEJOH OHFST BOE OBMMZ CSFBLT JO TFWFSBM JTPMBUFE IPMFT 8IF OBM TJUVBUJPO BGUFS B SBUIFS MPOH FWPMVUJPO SFTFNCMFT UIBU PG H MFGU QBOFM
" ( 1 &FTUFIPSO !2, / )! 1 &FTUFIPSO !2, / -- ! 1 &FTUFIPSO 2+(2'&"$ .' -+.$-.+"%.' 7QSJOHFS 4SFTT &FSMJO 1&FTUFIPSO 4'PMJOFU !2," (! 1 &FTUFIPSO 6 *SJFESJDI !2, / ) ! 1 &FTUFIPSO / 2FVFS !2, / -- ! 1 &FTUFIPSO % 4PUPUTLZ 9 8IJFMF .+ !2, &! . &VSFMCBDI 7 &BOLP 7 (BWJT %." ! ! *, &VTTF 2 6JBIJ %." ! !
172
Michael Bestehorn
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
$$#
' %)(#"' 70-65*0/ 26"5*0/ *4+0*/*/( 3&4463& &$5*7& 0#*-*5: 0/5"$5 /(-&
)''((#"&+ #(#" &3563#"5*0/ 91"/4*0/ 3"/4-"5*0/"- 0-7"#*-*5: 0/%*5*0/ 05*0/ %6& 50 4:..&53: 0' 0/5"$5 /(-&4
"(&(#"' ( + ( &)&'#& 07*/( 301-&5 0/ " 3&$63403 *-.
174
Len M. Pismen "44 3"/41035 5)306() 5)& 3&$63403 0"34&/*/( *(3"5*0/ 0' /5&3"$5*/( 301-&54
! $) '#"
6#453"5& 0%*$"5*0/
3"7&-*/( *'63$"5*0/
0/%*64*7& *.*5
&-"9"5*0/ 50 " 5"5*0/"3: "55&3/
$"55&3*/(
"'' "(' 5"5*$ )*$,/&44 30/54 7"103"5*0/ "/% 0/%&/4"5*0/ -69&4 "/% 0#*-*5: 0' 5)& 30/5 0-7"#*-*5: 0/%*5*0/
*$#&(* ((&"' 53"*()5-*/& '30/5 !"/$",& "/% !)0-& 0-65*0/ */ " $0.07*/( '3".&
*(;"( */45"#*-*5:
#&$+
Thin Film and Droplet Patterns Shaped by Surface Forces
175
# !%$# 4-*32'-, /32'-,
2ABG EBJNB= EFL :K> =BLMBG@NBLA>= ;R MA> =HFBG:GM KHE> H? BGM>K: LN;LMK:M> :G= H? #>KC:@NBG @>G>K :M>= ;R MA>L> BGM>K:R :K> L= BG AR=KH=RG:FB< EN;KBLLNK> :G= BFIEB>L MA:M MA> EF A:L : E:K@> :LI>GML BG 8AHKBSHGM:E B> I:K:EE>E MH MA> LN;LMK:M> =BK> P>:D>K MA:G MAHL> BG MA> 8O>KMB LN;LMK:M> =BK> >OHENMBHG >JN:MBHG H? : EF BL PKBMM>G BG MA> ?HKF 0
8 0 #
PA>K> 0 BL MA> E:R>K MABLL BL MA> OHENF>MKB< NQ 8 0 BL MA> FH;BEBMR GM :G= # BL IK>LLNK> BG MA> EF >QIK>LL>= :L # 0 0 ( 0
2A> MAK>> M>KFL BG MABL >QIK>LLBHG =>L BG MABL HK=>K >>K?:BG@ MA> LM:G=:K= LNK?: M>GLBHG H? MA> ;NED NB= =BLCHBGBG@ IK>LLNK> 0 PABG>= :L MA> =>KBO:MBO> H? MA> BGM>K?:G>K@R PBMA K>LI> E:R>K MABLL ==0 :G= IHM>GMB:E ( H? >QM>KG:E ?HKL >@ @K:OBMR 2ABL ?HKF BL NGBO>KL:E ?HK ;HMA LA:KI BGM>K?: MA>HKB>L PBMA BGM>KFHE> BGM>K?: MA>HKB>L PBMA GHFBG:EER =>G>= 0 /BLF>G :EE MA:M O:KB>L BL MA> ?HKF H? MA> =>I>G=>G H? MA> =BLCHBGBG@ IK>LLNK> HG MABLL 0 :G= MA> >> FH;BEBMR 8 0 (G MA> ?HEEHPBG@ P> LA:EE HG >OHENMBHG =KBO>G ;R LNK?: ?HKL :G= L>M ( MA> BGN>G H? @K:OBMR BL K>= >EL>PA>K> BG MABL OHENF> !>LM>AHKG MABL OHENF>
'1(-',',% 0#1130#
2A> =>I>G=>G H? =BLCHBGBG@ IK>LLNK> HG MA> E:R>K MABLL ?HEEHPL ?KHF :G :IIKHIKB:M> NB=LN;LMK:M> BGM>K:E P>:D>K =>I>G=>G HG MA> AHKBSHGM:E :==>= B? MA> LN;LMK:M> BL BGAHFH@>G>HNL BML IKHI>KMB>L F:R ;> :EEHP>= MH O:KR HG : EHG@ L MH D>>I MA> EN;KBBMA>K MHM:EER HK I:KMB:EER P>MMBG@ NB= MA> 0 BL FHGHMHGB KLM :MMK: BGM>K:MP>>G MA> LN;LMK:M> :G= NB= FHE>L BL LMKHG@>K MA:G :MMK: NB=NB= BG M>K: L> HIIHLBM> BL MKN> BG ;HMA L MA> =BLCHBGBG@
176
Len M. Pismen
IK>LLNK> @KHPL BG=>GBM>ER ;R BML :;LHENM> O:EN> :L MA> E:R>K ;>L MABG G>K NGMBE : HK=>K H? FHE> BL K>:= 5> LA:EE ?NKMA>K L> L K>LI>ER 8P>MMBG@ :G= 8GHGP>MMBG@ >Q M>G=BG@ MA> E:MM>K M>KF MH :EE L PA>G MA> EE L 0 :IIKH:KH :M 0 :L =BLCHBGBG@ IK>LLNK> O:GBLA>L BG MABKL IK:M>K K:G@> PA>K> MA> BGM>K?:G>K@R :IIKH:L BML LM:G=:K= ;NED O:EN> INK>ER 8GHGP>MMBG@ F:R ;> AHP>O>K NGK>: MA>HK>MBK:G>K@R BL IKHIHKMBHG:E MH LJN:K>= =>GLBMR :G= BL FN:D>K BG MA> @:L MA:G BG MA> EBJNB= IA:L> 2A>K>?HK> MA> 0 ?HK : GHGP>MMBG@ EBJNB= LAHNE= IENG@> =HPG :M 0 :L BG %B@NK> E>?M 2A> E:R>K PBMA MA> MABLL 0 LIHG=BG@ MH MA> BGM>KL> :;LJNBEB;KBNF PBMA : :M MABK (? MABL O:EN> BL E:K@>K MA:G MA> FHE> . BM LB@G:EL MA> ?HKF:MBHG H? : F>LHLK HG MA> LN;LMK:M> BG MA> 0 . HG> :D H? :G :=LHKIMBHG E:R>K HG MA> LHEB= LNK?:
h h
'%30# #>I>G=>G H? =BLCHBGBG@ IK>LLNK> HG E:R>K MABLL E>?M GHG P>MMBG@ EBJNB= PBMA : IK>JNBEB;KBNF MABLL>L MA> =:LA>= EBG> F:KDL MA> ,:QP>EE E
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
-,2!2 ,%*#
:M E:R>K H? : 8GHGP>MMBG@ EBJNB= BL NGLM:;E> :G= M>G=L MH ;K>:D BGMH =KHIE>ML L>I:K:M>= ;R >BMA>K 8=KR LN;LMK:M> HK I:ML K>= ;R : IK> K 2A> MAK>>IA:L> ;HNG=:KR BL : :G= MA> ;HNG=:KR JNBK>= MH G= MA> LA:I> H? : F:G ;R MA> =>G>= ?HKF:EER ;R MA> 6HNG@T+:IE: ?HKFNE: K> :K> K>LI>ER MA> >G>K@B>L I>K LNK?: :K>: H? MA> @:L LHEB= :G= EBJNB=LHEB= BGM>K?:L 5BMA ;HMA =BLCHBGBG@ IK>LLNK> :G= >QM>KG:E ?HKL G>@E>= MA> LA:I> H? : GBM> =KHIE>M BL CNLM : LIA>KB =KHIE>ML GM>K H? LRFF>MKR 2:D> GHM> MA:M MA> EE :L = BL F>:LNK>= HG MA> L >QM>G=>= ;R MA> ?: 8O>KMB E>?M BG?HK F:MBHG =>M>KFBGBG@ MA> JNBEB;KBNF :;L>G H? >QM>KG:E ?HKL $J K>=NL MH 0 0 %HK : LMK:B@AM = :QBL BM BL GB>GM MH NL> : 8IA:L> IE:G> K>IK>L>GM:MBHG H? MABL >JN:MBHG H;M:BG>= ;R M:DBG@ MA> E:R>K MABLL 0 :L MA> BG=>I>G=>GM :G= MA> LJN:K>= LEHI> > 0 =
:L MA> =>I>G=>GM O:KB:;E> => 0 =0
> 0
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
Thin Film and Droplet Patterns Shaped by Surface Forces
179
%##$$"' $ #0230 2'-, 6.,1'-,
5> LA:EE GHP HG MA> PA>G MA> =KHIE>M BL L>M BGMH LEHP FHMBHG =N> MH >BMA>K >QM>KG:E ?HKL HK EHG@K:G@> BGM>K: :LLNF> MA:M MA> =>OB:MBHG ?KHF >JNBEB;KBNF LA:I> K>F:BGL P>:D :G= MK>:M>= :L : LF:EE I>KMNK;:MBHG >O>KRPA>K> 2A> =KHIE>M FH;BEBMR =>=N= MA>G ?KHF BGM>@K:E = HG :G >JNBEB;KBNF LHENMBHG /BLF>G :G= /HF>:N 2ABL :EEHPL NL MH :OHB= LHEOBG@ =RG:FB< >JN:MBHGL >QIEB= LA:I> 5> LA:EE K FHMBHG H? : 8=KHIE>M =>G>= :L : K PBMA : MABLL 0 2A> =KHIE>M BL LM:MBHG:KR BG MA> :;L>G H? >QM>KG:E ?HKL PA>G 0 =H>L GHM =>I>G= HG IHLBMBHG >QIEB KR LEHP FHMBHG PBMA : O>EHGLN>L PA>G MA> LRFF>MKR BL P>:DER ;KHD>G >@ =N> MH LN;LMK:M> BGAHFH@>G>BMB>L HK >QM>KG:E ?HKL HK B? ;HNG=:KR LEB@AMER I>KMNK;>= %HK : =KHIE>M FHOBG@ PBMAHNM H? OHENF> MA> MBF> =>I>G=>G BG $J BL K>=N= BG MA> E>:=BG@ HK=>K MH MK:GLE:MBHG PBMA : O>EHM NGDGHPG 2ANL MA> MBF> =>KBO:MBO> L MH MA> >QI:GLBHG H? $J :G BGAHFH@>G>BMR IKHIHKMBHG:E MH MA> MK:GLE:MBHG O>EHE=L MA> JN:LBLM:MBHG:KR >JN:MBHG
0 8 0 0 0 #BLCHBGBG@ IK>LLNK> HK >QM>KG:E IHM>GMB:E B? HG> BL IK>L>GM L>I:K:M>= BGMH : LRFF>MKB< I:KM 0 PAB>MKB< I:KM 0 PABM MA> =KHIE>M BGMH FHMBHG 0 0 0
5> :K> EHHDBG@ ?HK : I>KMNK;>= LHENMBHG BG MA> ?HKF 0 ; 0 0
PA>K> 0 BL : LM:MBHG:KR LHENMBHG O>KB?RBG@ $J GHP K>PKBMM>G :L 0 0
2A> KLMHK=>K >JN:MBHG A:L : @>G>K:E ?HKF 0
180
Len M. Pismen
PAB:K HI>K:MHK 8 0 0
:G= MA> BGAHFH@>G>BMR 0 78 0 0 9 2A> HI>K:MHK BL GHM L>E?:=CHBGM 2A> :=CHBGM HI>K:MHK BL 0 8 0
2A> NGDGHPG O>EH= ;R BL GH G>>= MH : BM NGE>LL P>:D =>?HKF:MBHG >QIK>LL>= ;R MA> KLMHK=>K ?NGK>LM 2A> HI>K:MHK A:L : MK:GLE:MBHG:E &HE=LMHG> FH=> MA:M O>KB>L
0 0 8 0
PA>K> BL :G :K;BMK:KBER =BK>= NGBM O>= E:M>K 2:DBG@ MPH O> MPH ":KM>LB:G :Q>L @BO>L MPH &HE=LMHG> FH=>L LIHG=BG@ MH MPH MK:GLE:MBHG:E =>@K>>L H? ?K>>=HF BG MA> IE:G> 2A> B=>GMBMR = =BK>LNEMBG@ >QIK>LLBHG 0 0 PBMA MA> B=>GMBQIK>LLBHG H;M:BG>= ;R :IIERBG@ MH $J (G LHF> L MA>K> BL GH G>>= BG :G >QIEB@K:E ?HKF H? HMA>KPBL> BM H;M:BG>= ;R LHEOBG@ $J :G= =>I>G=L HG :IIKHIKB:M> ;HNG=:KR K &HE=LMHG> FH=> H? BL E>O:GM ?HK LIK>:=BG@ :G= >O:IHK:MBHG IKHLL>L 1BG MA> MPH &HE=LMHG> FH=>L LAHNE= ;> FNMN:EER HKMAH@HG:E LAHNE= ;> :GMBLRFF>MKB< ?HK : LRFF>MKB< =KHIE>M (M MA>K>?HK> GB>GMER = ;R L>MMBG@ HG : LRFF>MKR :QBL :G= BGM>@K:MBG@ $J BG MPH HIIHLBM> =BK> =BK>= :EHG@ :G= ' BL MA> HNM>K GHKF:E MH :G= : BL MA> :K< E>G@MA 2A> MK:GL?HKF>= >QIK>LLBHG : BGM>@K:EL MA>
0 0 = 0
:G= MA>
0 0 0 = 8 0
==BMBHG:E @K:EL =>I>G=>GM HG MA> NGDGHPG KLMHK=>K ?NG = ;R MA> HI>K:MHK PA>G BM BL FNEMBIEB>= ;R :G= BGM>@K:M>= ;R I:KML : 8 0 0 0 =: 0 0 0 0 =:
0 0 0 0 =:
2A>L> BGM>@K:EL = PBMA MA> @K:E BG $J K>IK>L>GM MA> 2A> I>KMNK;:MBHG 0 >QI:G=>= BG :G@NE:K A:KFHGB ':KFHGB< I>KMNK;:MBHGL PBMA 6 =BLMHKM MA> =KHIE>M ?HHMIKBGM A>G H? MA> = =KHIE>M PBMA MA> K>LI> LRFF>MKR 2A> KLM A:KFHGB< =BIHE> 6 BL AHP>O>K :G >QIMBHG LBG MA> K>LI> I>KMNK;:MBHG H? BL >JNBO:E>GM MH MK:GLE:MBHG PBMAHNM H? ?HKF 2A>K>?HK> BM BL MA> =BIHE> :LRFF>MKR PABQI>= MH L>M MA> =KHIE>M BGMH FHMBHG PBMAHNM :> LA:I> H? BML ?HHMIKBGM MH MA> KLM HK=>K BG :G= BM BL LNGM MH HGER MA> =BIHE> GML H? :EE BGM>@K:EL BG $JL
182
Len M. Pismen -2'-, "3# 2- 17++#207 -$ -,2!2 ,%*#1
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
% ' EG K P:RL H? >EBFBG:MBG@ MA> LBG@NE:KBMR >@ NLBG@ $J RB>E= LBFBE:K K>LNEML =B>KBG@ HGER ;R MA> GNF>KBK MA> EH@:KBMAF 2A> K:MBH H? MA> F:EEM:E> LB@G H? MA> K>LHEO>= M LBMMBG@ HG : IK>K MA> G :L : Q>=BG@ MA:M H? MA> =KHIE>M /K: L H? >QIHG>GMB:E =>JNBEB;KBNF O:EN> 0 G>:K MA> = =KHIE>M K:=BNL HG MA> F:= PBMA MA> :O>K:@> MABLL H? MA> IK> G>@EB@B;E> LBG MA> IK>K BL ;HMA O>KR MABG :G= :M 2A> KLM M>KF BG MA> @K:E $J BL G>@EB@B;E> :L P>EE :G= BML L>KF O:GBLA>L ;R LRFF>MKR PA>G MA> IKBG= :EHG@ MA> GHKF:E 2A> =KBOBG@ ?HK BL =>M>KFBG>= ;R MA> :K>: BGM>@K:E (? MA> FHMBHG BL =N> MH :LRFF>MKR H? =BLCHBGBG@ IK>LLNK> = ;R LN;LMK:M> BGAHFH@>G>BMR P> >QI>O>K MA:M BG MA> H? : F: IHLLB;E> MH :IIKHQ BF:M> MABL 8;NED =KBOBG@ ?HK ;R MA> ;HNG=:KR ?HK =N> MH EH= IKHO>G BG MA> ?HEEHPBG@ P:R $QI:G=BG@ $J
0 .0 0 =0 0 =0 K>E:M>L MA> I>KMNK;:MBHG H? MA> I>KMNK;:MBHG H? =BL CHBGBG@ IK>LLNK> 0 0 =0
184
Len M. Pismen
.G MA> HMA>K A:G= MA> BGM>@K:E BL MK:GL?HKF>= MH : @K:E ;R BGM>@K:MBG@ BG MA> =BK> :EHG@ MA> K:=BNL =
= : == : =: : 0 0 =
0 0 =0 =0 0
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
% 4 0 0 =0 EG > 0 0 , 0
2A> BGM>@K:E BL = ;R >QMK: I:KM =BO>K@BG@ :M 4 ?HK MA> K>F:BGBG@ GBM> BGM>@K:E MA> NII>K EBFBM >QM>G=>= MH BGGBMR RB>E=BG@ : GNF>KBG=>GM HG MA> ?HKF H? ?NG 0 0
==BG@ A>K> MA> ;NED FHO>L MA> :NQBEB:KR E>G@MA 4 RB>E= BG@ :G >QIK>LLBHG PA>K> 0 K>IE:L BG MA> KHE> H? : FBG PA>G MA> LN;LMK:M> BL AHFH@>G>HNL FHMBHG = ;R NQ>L BG=N= BG MA> IK> MH BGM>K:ML 5> LA:EE K GHP :G >GL>F;E> H? =KHIE>ML LBMMBG@ HG MA> IK>@E>QM>KG:E ?HKL :G= >O:IHK:MBHG 2A> =KHIE>ML :K> :LLNF>= MH ;> LNGMER ?:K K>FHO>= LH MA:M : IK>G>= BG MA> IK>=BG@ LN;L>:F L>I:K:M>ER 2ABL K>JNBK>F>GM BL BG ?:KR LMKBG@>GM LBG K>E:Q:MBHG MH : :M IK> MA> @BHG BL >QIHG>GMB:E PBMA : G@MA H? " 0 2A> =KHIE>ML FB@AM A:O> ;>>G ?HKF>= :L : K>LNEM H? LIBGH=:E =>P>MMBG@ :G= LN;L>JN>GM GBG@ (G MABL PA:M P> :K> @HBG@ MH =>L BL : E:M> LM:@> H? >OHENMBHG ?HEEHPBG@ MA> ?HKF:MBHG H? P>EE L>I:K:M>= F: F:= ;R $J A:L MA> % :G= : IK> MABLL
0 % 0 % 0 PA>K> 0 BL MA> IK>JNBEB;KBNF PBMA : :M E:R>K H? ;NED NB= 2A> IK>:K E:K@>K =KHIE>ML PABK> ?HK> @KHP :M MA> >QI>GL> H? LF:EE>K HG>L 2ABL BL :G :G:EH@ H? MA> &B;;LT 2AHFLHG >>K> F:LL >Q PBMA MA> IK>IE:L >O:IHK: MBHG 2A> IK>OHENMBHG :L P>EE :L =KHIE>M FHMBHG K>= JN:LBLM:MBHG:KR PA>G BGM>K::D 1BG MA> H? MA> IK> @EB@B;E> $J K>=NL MH MA> =BNLBHG >JN:MBHG PBMA O:KB:;E> >> =BNLBOBMR 0 0
0 8 0 0
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
186
Len M. Pismen
MA> LBFIE>LM H? : I:BK H? =KHIE>ML L>I:K:M>= :M : =BLM:G 9 FNK MA:G MA>BK K:=BB % HG> MA> +:IE: >JN:MBHG NLBG@ MA> ;BIHE:K LRLM>F PBMA MA> ?H =KHIE>M GM>KL 2A> L K>LI>ER K>E:M>= MH MA> ":KM>LB:G L = > :L =
9 LBGA BGBMB:E IHLBMBHGL :G= MA> LG >O>GML =HML F:KD >QMBGO>GML
L= ;R : EBG>:K DBG>MB< >JN:MBHG =-=; 3 - 3- PA>K> - BL MA> ;NED DBG>MB< E:MM>K BL :LLNF>= ?HK LBFIEB MA> L:F> BG MA> =KHIE>M :G= MA> 2:DBG@ BGMH :M MH ;> G>@EB@B;E> P> PKBM> MA> :=LHKIMBHG=BNLBHG >JN:MBHG ?HK MA> LNK?: HG MA> LN;LMK:M> BG MA> =BF>GLBHGE>LL ?HKF - - -
PA>K> >JN:EL MH HNMLB=> :G= BGLB=> MA> =KHIE>M ?HHMIKBGM 2A> LNK?: - BL L= ;R MA> K:@> BG >JNBEB;KBNF PBMA MA> LNK ?: ;R MA> BGO>KL> =>LHKIMBHG K:M> G@MA ;R 3 PA>K> BL MA> LNK?: LN;LMK:M> M E:M>K LM:@>L H? MA> IKHLL PA>G LNK?:M ;NED HG> MA> L:F> >JN:MBHG M:DBG@ BGMH
Thin Film and Droplet Patterns Shaped by Surface Forces
191
:K>G H? :=LHKIMBHG K:M>L HNMLB=> :G= BGLB=> MA> =KHIE>M BL BFIHKM:GM :G= K>IE: =B>K>G H? MA> K>LI> O:EN>L 2A> EH K:MBH H? MA> 8FBEH EHKFBG>L MA> BG N>G H? OBLLL>L HG MA> =KHIE>M LA:I> LNLM:BG>= ;R LNK?: M>GLBHG 2ABL BFIEB>L MA:M MA> K BL MA> MKN> LF:EE I:K:F>M>K H? MA> IKH;E>F =>OB:MBHGL H? MA> H? " ": MH CNLMB?R MA> I>KMNK;:MBHG :IIKH:K K>:EBLMB< >Q I>KBF>GM:E LA:I> H? FBEE>= =KHIE>ML BL HGER P>:DER =BLMHKM>= ;R OBLLL>L $JN:MBHG MK:GL?HKF>= MH MA> ?K:F> FHOBG@ PBMA : =BF>GLBHGE>LL O>EH = :QBL BL LHENMBHG H? MABL >JN:MBHG >QIK>LL>= PBMA MA> A>EI H? :G :IIKH IKB:M> &K>>GL ?NG@K:E HO>K MA> =KHIE>M ?HHMIKBGM :K>: :G= LN;L>JN>GMER MK:GL?HKF>= BGMH : @K:E PBMA MA> A>EI H? MA> &:NLL MA>HK>F /BLF>G %HK : E> FH=NENL + % 3 MA> KFBG>L MA> IKHI:@:MBHG LI>>= BL = BG MABL P:R :L
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
= + + + LBG = LBG + =+
= = LBG + LBG + =+ LM:KMBG@ ?KHF + + + /EN@@BG@ MA> K>LNEMBG@ >QIK>LLBHGL BG $J RB>E=L MA> HGL>M H? FHMBHG !
+ 7 + + + + 9
2A> K:=B:E =>I>G=>G BG $J L:MNK:M>L PA>G MA> =KHIE>M K:=BNL ?:K >Q>=L MA> =BNLBHG:E K:G@> LH MA:M ! :M + GH =KHIE>M ;>EHP MABL EBFBMBG@ O:EN> !> H? MA> EH@:KBMAFB< =>I>G=>G H? ! HG MA> =KHIE>M K:=BNL MA> LBS> =>I>G=>G H? MA> MK:O>EBG@ MAK>LAHE= BG $J LMBEE K>F:BGL BFIEBQIEBI>G=>G >QMK:= :?M>K K>PKBMBG@ $J :L 3 + ! EG 3 (G MA> EBFBM + PA>G MA> EBFBM ! MA> =KHIE>M BL FH;BE> :M + >QI 2ABL LN@@>LML MA:M
194
Len M. Pismen 1M0 0.25 0.2
1M0 0.005
0.15
0.001 0.0005
0.1
0.0001 0.00005
0.05
0.00001 0.02 2
4
0.05 0.1 0.2 6
a
8
a
'%30# 2A> GLBHGE>LL =KHIE>M K:=BNL + (GL>M ;EHPNI G>:K MA> HKB@BG HG EH@:KBMAFB< L 2A> =KHIE>ML :K> FH;BE> ;>EHP MABL
MA> K:=BNL H? FH;BE> =KHIE>ML BL ;HNG=>= ;HMA ?KHF ;>EHP :G= :;HO> :L BM BG=>>= ?HEEHPL ?KHF MA> >QBLM>G H? : F:QBFNF BG MA> K:=B:E =>I>G=>G H? MA> I:K:F>M>K LN>G BG %B@ !>RHG= MA> EH= NLBG@ ?NKMA>K M>KFL BG MA> >QI:GLBHG 2A> =BIHE> GM H? MA> M>KF JN:=K:MB< BG < O:GBLA>L :G= MA>K>?HK> MA>K> BL GH K 2A> =BIHE> GM H? MA> MABK=HK=>K M>KF BL < PA>K>
+ + + + + + + +
2ABL GM BL G>@:MBO> A>G MA> ;B?NKKOB:MBHGL ! ! ! MA> O>EH GLBHGE>LL =KHIE>M K:=BNL + ?HK H;M:BG>= =BK>@K:MBG@ :EHG@ MA> =BK> BGBMB:E :=O:GLNEMBG@ K>=BG@
=>I>G=L HGER HG MA> K:MBH
+ 3% < ' ":
2A> >JN:MBHG ?HK ?HEEHPBG@ ?KHF $J BL
= #
I:K:F>M>K #
%3 % + EG EG !
PA>K> 3 2A> ?NGO:EN:M>= :L
7 9
196
Len M. Pismen Ca 0.006 0.0055 0.005 0.0045
0.01 0.02 0.03 0.04 0.05 0.06 0.07
'%30# 2A> =>I>G=>G H? MA> K HG MA> =BF>GLBHGE>LL K:=BNL ?HK 2A> =:LA>= EBG> LAHPL MA> :LRFIMHMB< =>I>G=>G
PA>K> = BL : 1MKNO> ?NG ?NGL FHGHMHGB =>I>G=>G H? MA> K HG MA> =BF>GLBHGE>LL =KHIE>M K:=BNL H;M:BG>= :G:ERMB NGL:MNK:M>= :G= L:MNK:M>= K>@BF>L K>LI>ER :M LF:EE :G= E:K@> (G MA> ?HKF>K HG> MA> :IIKHQBF:MBHG " MH H;M:BG ": EG (G MA> HIIHLBM> EBFBM :G= EG ":
2ANL MA> O>EHL PBMA =KHIE>M LBS> BG MA> NGL:MNK:M>= :G= => :L>L BG MA> L:MNK:M>= K>@BF> BG :@K>>F>GM PBMA >QI>KBF>GM +>> :G= GNF>KB %HK BGM>KF>=B:M> O:EN>L H? MA> =>I>G=>G H? O>EH= ;R LHEOBG@ $J GNF>KB= BG %B@
Thin Film and Droplet Patterns Shaped by Surface Forces
197
#*62'-, 2- 22'-,07 22#0,
M AB@A =BNLBOBMB>L PA>G =KHIE>ML =H GHM MK:O>E LIHGM:G>HNLER MA>R LMBEE NG=>K MA> BGN>G H? FNMN:E BGM>K: LNK?:IE>MBHG BG MA> ?:K >E= H? : LM:MBHG:KR =KHIE>M :M =BLM:GL ?:K >Q>=BG@ BML K:=BNL BL P>EE :IIKHQBF:M>= ;R MA> LM:MBHG:KR LHENMBHG H? $J PBMA - K>IE:= ;R - :G= ;R MA> =>EM:?NG= ;R MA> =KHIE>M :K>: - + 9 2A> LNK?: =KHIE>M BL I>KMNK;>= ;R MA> ?:K >E= H? BML G>B@A;HKL 2A> K>LNEMBG@ K>I>EEBG@ BGM>K : =KHIE>M EHK> BL : GNF;>K H? =KHIE>ML MA>BK : 2ABL E>:=L MH MA> >JN:MBHG H? FHMBHG ?HK =KHIE>M GM>KL + = ! + =;
2ABL BL : @K:=B>GM =RG:FBF = ! ( =; + >OHEOBG@ MH FBGBFBS> MA> IHM>GMB:E ( + +
(G : 8MA>KFH=RG:FB< EBFBM H? :G BGGBM>ER E:K@> K>@BHG GNF;>K H? =KHIE>ML MA> IHM>GMB:E BL >QI>= MH ;> FBGBFBS>= ;R : K>@NE:K A>Q:@HG:E I:MM>KG PBMA LI:I>G=>GM HG MA> GNF;>K =>GLBMR H? =KHIE>ML 2A> HK=>KBG@ M>G=>GFHGLMK:M>= ;R :G >Q:FIE> H? >OH ENMBHG LAHPG BG %B@ 2A> F>GM BL >>= BG MABL M:E >QM>KG:E IHM>GMB:E 5 PBMA : LNBM:;E> > MA:M >OHENMBHG LM:KMBG@ ?KHF : K:G=HF :KK:G@>F>GM H? =KHIE>ML >OHEO>L MH K>@NE:K I:MM>KG PA>K> Q:@HG:E @KB= 2ABL FB@AM ;> : IK:@NE:K =>P>MMBG@ I:MM>KG HG : AHFH@>G>HNL LN;LMK:M>
!22#0',%
2A> LNK?:IE>MBHG BG MA> ?:K >E= H? : LM>:=BER FHOBG@ =KHIE>M H;M:BG>= ;R LHEOBG@ $J PBMA - K>IE:= ;R - :G= ;R MA>
198
Len M. Pismen
1
0.5
0
-0.5
-1 -1
-0.5
0
0.5
1
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
Thin Film and Droplet Patterns Shaped by Surface Forces
199
'%30# 1NK?:IE>MBHG BG MA> ?:K >E= H? : LM:MBHG:KR =KHIE>M E>?M :G= =KHIE>ML IKHI:@:MBG@ PBMA MA> LI>>= < GM>K :G= < KB@AM 2A> =KHIE>M IHLBMBHG BL F:KD>= ;R : =HM 2A> :K>: PBMA LNK?:IE>MBHG :;HO> MA> L:F> E>O>E BL LA:=>= LAHPBG@ MA> =>IE>MBHG BG MA> M:BE K>@BHG BG:LBG@ :M AB@A>K LI>>=
2Y
'%30# 1KBG@ MK:C>L 2A> O>KMB F:KDL MA> EH LM :IIKH: = :QBL PBMA B=>GMB>= < HG :GMBI:K:EE>E MK:C>L LAB?M>= ;R MA> BGM>KO:E * :L BG %B@ 1BG : =>>= =KHIE>M D>>IL FHOBG@ HG : I>KMNK;>= MA> LKBG@ :JNBO:E>GM MH :K:MBHG BG MA> =BK>E?IKHI>EE>= FHMBHG 0>LMKB JN:LBLM:MBHG:KR :IIKHQBF:MBHG MA> =RG:FB< >JN:MBHG ?HK MA> =>OB:MBHG > GHKF:E MH MA> HKB@BG:E MK:C>K>?HK> = > ! + =; >
PA>K> MA> =>KBO:MBO> H? MA> LNK?:IE>MBHG @BO>G ;R $J BL = :M : GM =BLM:G ;>MP>>G MA> =KHIE>ML :M MA> FHF>GM ; >JN:E MH
9 ;
200
Len M. Pismen Ma2 0.03 0.025 0.02 0.015 0.01 0.005 -2
2
4
6
x
'%30# 2A> H? MA> LKBG@ :G@E> PBMA =BLM:G ?HK < * 2A> =:LA>= EBG> LAHPL MA> LKBG@ :G@E> :M BGGBMR = PBMA MA> A>EI H? $J
PA>K> MA> FHF>GM H? LM :IIKH:G :L ; ->@E> H? MA> O>EH =:QBL MBF> ; BG $J K>IE:= ;R =@K:MBHG BL LAHPG BG %B@ :G= : FHK> JN:GMBM:MBO> >Q:FIE> H? MA> H? MA> LKBG@ :G@E> PBMA =BLM:G BL LAHPG BG %B@ 2:D> GHM> MA:M =N> MH : ?:LM>K =>IE>MBHG :A>:= H? MA> =KHIE>M LKBG@ E:K@>ER ::=R :?M>K MA> =KHIE>ML A:O> I:LL>= MA> IHBGM H? LM :IIKH:K:M> =>OB:MBHGL : K>:LHG:;E> :IIKHQBF:MBHG ?HK MA> LKBG@ :G@E> :M BGGBMR > @BO>L MA> ?HKFNE: G>@E> = MH *
! * +
= PBMA MA> A>EI H? MABL ?HKFNE: HGER P>:DER => I>G=L HG O>EH FNK =>I>G=>G HG MA> L>I:K:MBHG BGM>KO:E BL LAHPG BG EH@:KBMAFB< L BG %B@ ;>EHP
Thin Film and Droplet Patterns Shaped by Surface Forces
201
0.028
Ma2
0.026 0.024 0.022 0.02 0.018 0
4
2
6
8
10
v
Ma2
0.1 0.05 0.01 0.005 0.001 0.0005 1
2
3 Y
4
5
'%30# #>I>G=>G H? MA> H? MA> LKBG@ :G@E> HG O>EH HG MA> L>I:K:MBHG BGM>KO:E ?HK < ;>EHP !HMA L :K> = NLBG@ $J
## "$# 22'! &'!),#11 0-,21
%HK : =>I>G=>G 0 H? MA> DBG= LAHPG BG %B@NK> KB@AM MPH LM:;E> KHHML H? 0 HK FBGBF: H? 0 0 F:R >QBLM BG PBMABG : KM:BG
202
Len M. Pismen 0.9 0.85 0 0.8 Ps
-0.001
0.75
-0.002 -0.003 -0.004
0.7
0.7
0.8
0.9
20
25
30
0.65 5
10
15 h
'%30# #>I>G=>G H? MA> LM:MBHG:KR EF MABLL HG MA> I:K:F>M>K 2A> MPH ;K:GL H? MA> LHEB= LAHP MA> O:EN>L H? 0 :G= MA> =:LA>= EBG> LAHPL MA> BGM>KF>=B:M> NGLM:;E> LM:M> 0 (GL>KM =>I>G=>G
BGM>KO:E H? =>M>KFBG>= ;R MA> K>LI> LAB?M H? FBGMB:E LNBM:;E> ?HKF H? 0 BL MA> 1A:KF: ?NGK:
2A> =BF>GLBHGE>LL ?HKF NLBG@ . :L MA> MABLL L :G= $ . :L MA> >G>K@R =>GLBMR L BL 0 0 >
. $ $
2PH LM:;E> O:EN>L H? MA> EF MABLL :M : Q>= E>O>E H? :K> IHLLB;E> PA>G MA> 0 BL 1LA:I>= B> BG MA> BGM>KO:E > > HK :IIKHQBF:M>ER 2A> :EM>KG:MBO> LM:MBHG:KR LM:M>L 0 F>K@> :M MA> EHP>K >G= H? MABL BGM>KO:E PABE> :M MA> NII>K >G= 0 =BO>K@>L L>> %B@ 3G=>K MA>L> EBJNB= EF F:R L>I:K:M> BGMH =HF:BGL PBMA :EM>KG:MBO> LM:;E> O:EN>L 0 0 2A> =HF:BG ;HNG=:KB>L MABLL ?KHGML :K> L>M BGMH FHMBHG =NKBG@ >O:IHK:MBHG GL:MBHG HK GBG@ :L P>
Thin Film and Droplet Patterns Shaped by Surface Forces
203
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
> 0 0 0 0 0
:G= MA> ?KHGM IKHE> BL >QIK>LL>= BG :G BFIEB HKB@BG = F:R ;> :K;BMK:KR ;NM MH ;> =>GBM> P> A:O> G BM MH NGLM:;E> BGM>KF>=B:M> LHENMBHG 0 2PH MRIBL :K> LAHPG BG %B@
4.-02'-, ," -,"#,12'-,
2ABLL ?KHGML L>M BGMH FHMBHG PA>G MA> EBJNB= BL (G MABL MA> OHENF> BL GHM KO>= :G= $J BL FH=B>= ;R :==BG@ :
204
Len M. Pismen 12
0.86
h
10 8 6
0.68
4 -50
0
50
100 x
150
200
250
300
'%30# 2A> LM:MBHG:KR ?KHGM IKHE>L ?HK :G=
LHNK LBGD M>KF 2A> >O:IHK:MBHG GL:MBHG K:M> BL IKHIHKMBHG:E MH MA> =B>K>G H? FBGMB:EL BG MA> EBJNB= :G= @:L IA:L>L 2A> LAB?M H? FBGMB:E BG MA> EBJNB= BL K>E:M>= MH IK>LLNK> =>G>= ;R $J #6 PA>K> 6 BL MA> EBJNB= GNF;>K =>GLBMR 2ANL P> 0 6 78 0 9
PA>K> BL FBGMB:E H? MA> :F;B>GM O:IHK IA:L> BL :G >> K:M> S>KH E>O>E H? LIHG=L MH >JNBEB;KBNF PBMA L:MN K:M>= O:IHK HO>K : :M BGM>K?: LNGMER K>FHO>= ?KHF MA> LN;LMK:M> :G= GHM LN;C>QM>KG:E ?HKL 2A> O:IHK:MBHG L . 6 BL =>M>KFBG>= ;R MA> ;:E:G ;>MP>>G :=O> F:LL MK:GLIHKM :EHG@ MA> EF PBMA 8 0 . :G= >O:IHK:MBHG 5> LA:EE K MA> PA>G >O:IHK:MBHG BL LNGMER LEHP LH MA:M MABL L BL = PBMA MA> BGM>KG:E L 4 MA:M =>M>KFBG>L MA> >QM>GM H? : K>@BHG PA>K> MA> BGM>K?: F:R ;> LMKHG@ER = =N> MH BGM>K: LN;LMK:M> 2A> K>LI> MBF> LL :K> &
4 . 6 $ .6 $
&
. 6
. $ $
$OHENMBHG BL B? BM IKH>=L HG MA> LEHP>K MBF> L
Thin Film and Droplet Patterns Shaped by Surface Forces 2A> L K:MBH
4
& & .
6 $
205
BL MA> LF:EE I:K:F>M>K H? MA> IKH;E>F 5> LA:EE =BLMBG@NBLA ;>MP>>G MA> LAHKML =BF>GLBHGE>LL L :G= MBF> ; :G= MA> EHG@L O:KB :;E>L & :L P>EE :L ;>MP>>G MA> K>LI> @K:=B>GM HI>K:MHKL :G= (G : LGHM> L GHKF:E MH MA> ?KHGM :G= > HK * MA> MK:GLO>KL> L 3LBG@ MA> 8BGG>K LAHKM :G= MA> 8HNM>K EHG@ LL P> K>PKBM> $J :L
0
0
78 0 9 78 0 9
0 0 0 0
*36#1 ," - '*'27 -$ 2 0-,2
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
206
Len M. Pismen
EF MABLL BG MA> F:M@BHGL F:R =>OB:M> ?KHF MA> >JNBEB;KBNF O:EN>L 0 MA:G " +BG>:KBSBG@ 0 MA> NQ>L 2 ;> >QIK>LL>= MA>K>?HK> :L 2 0 PA>K> 8 0 0 :K> >> =BNLBOBMB>L (M BL GHM:;E> MA:M BG LIBM> H? : LMKHG@ =>I>G=>G H? FH;BEBMR HG 0 MA> >> =BNLBOBMR MNKGL HNM MH ;> E:K@>K BG MA> EF =HF:BG L>> %B@ 2A> F:LL NQ MAKHN@A MA> ?KHGM BL G ;R >BMA>K H? MA> >JNBO:E>GM >QIK>LLBHGL -0 2 2 0 2 0 2 -0 8 0
0 0
-*4 '*'27 -,"'2'-,
(M K>F:BGL MH =>M>KFBG> MA> KLMHK=>K BGM>K?: K>E:M>= O:EN>L H? MA> EF MABLL 0 :M MA> F:M BGM>K?: %HK MABL INKIHL> $J BL BGM> @K:M>= MPB MH RB>E= 2 -0 = = == 8 0 =
Thin Film and Droplet Patterns Shaped by Surface Forces
207
D
0.01
0.001
0.0001
0.65
0.7
0.75
0.8
0.85
0.9
'%30# #>I>G=>G H? >> =BNLBOBMB>L BG MABG NII>K :G= 8MABK EF =HF:BGL HG MA> I:K:F>M>K
2A> BGM>@K:MBHG =>M>KFBG>= ;R NLBG@ MA> :;HO> >QIK>LLBHG BG $J :G= LHEO:;BEBMR :K BGAHFH@>G>HNL >JN:MBHG 2A> IHLBMBHG = BL :K;BMK:KR :G= LAHNE= ?:EE HNM H? MA> G:E K>LNEM 2A> EBG>:K HI>K:MHK = 0 =
BG $J BL L>E?:=CHBGM :G= A:L : S>KH >B@>GO:EN> LIHG=BG@ MH MA> MK:GLE:MBHG:E &HE=LMHG> FH=> 0 = ,NEMBIERBG@ $J ;R 0 = :G= BGM>@K:MBG@ RB>E=L
0 0 2 -
PA>K> MA> BGM>@K:EL =>I>G= HG MA> LM:MBHG:KR ?KHGM IKHE> HGER 70 = 9 == 7 0 =0
0 = 0 = = =0 = 0 =
0 8 0 8 0 7 0 0 0 0 0 0 =0 =0
7 0 8 0 7 0 3 0
0 = ==
2A> O:EN> 0 0 = G MH NGLM:;E> BGM>KF> =B:M> LM:MBHG:KR LHENMBHG 0 ;NM MABL BL GHM G>LL:KR :L :GR O:EN> PBMABG
208
Len M. Pismen
MA> BGM>KO:E 0 0 0 PBEE M :L P>EE 2A> BGM>@K:E BL K>= :L =BF>GLBHGE>LL EBG> M>GLBHG HK >G>K@R I>K NGBM E>G@MA H? MA> ?KHGM 2A> =>I>G=>G H? MA> >QLL FBGMB:E HG BG $J >QIK>LL>L : # :G:EH@ H? MA> &B;;LT2AHFLHG K>E:MBHG PABE> MA> HMA>K MPH M>KFL @BO> =RG:FB< MH MA> NQ MAKHN@A MA> BGM>K?: 2A> MPH O:EN>L H? FBGMB:E HK EF MABLL 0 MH ;> NL>= :L BGM>K?:K >JN:MBHG :K> H;M:BG>= ;R F:M HNM>K EBFBM H? MA> BGG>K LHENMBHG PBMA MA> BGG>K EBFBM H? MA> HNM>K LHENMBHG 2A> EBFBM H? MA> BGG>K LHENMBHG :M = BL
EBF = - 2 = =
PA>K> P> A:O> NL>= $J :G= L>I:K:M>= MA> K@BG@ BGM>@K:EL =>G>= ;R $J :G=
== =0 8 0 =
8 0 8 0 7 0 8 0 2ABL ?HKFNE: MH@>MA>K PBMA $JL :G= RB>E=L EHE:MBHGL ;>MP>>G MA> O:EN>L H? FBGMB:E :G= NQ>L HG ;HMA LB=>L H? MA> ?KHGM PAB :L MA> ;HNG=:KR K >JN:MBHGL .G> GMB:MBG@ MA> BGM>@K:EL PBMA K>LI> O:KB:;E> EBFBM MA:M MA> EBFBMBG@ O:EN> H? = BL BG=>>= BG=>I>G=>GM H? = PABM MH S>KH HK 0 2A> K>LI> EBFBML 0 H;M:BG>= NLBG@ MA> G>:K>JNBEB;KBNF EBG>:KBS>= K>E:MBHG
0 0 0
& "$& $$"# 20'%&2*',# $0-,2
2A> EF >O:IHK:M>L PA>G MA> :F;B>GM FBGMB:E =KHIL ;>EHP MA> IK>O:BEBG@ FBGMB:E BG MA> EF B> MA> ,:QP>EE E $O:IHK:MBHG M:DBG@ IE: BG MA> HNM>K K>@BHGL BL =>L= ;R $J PKBMM>G BG MA> EHG@L L LLNFBG@ " MA> L H? FBGMB:E :K> K>LMKB= MH " :ELH BG MA> HNM>K =HF:BGL LH MA:M 0 K>F:BG MH MA> MPH LM:MBHG:KR O:EN>L 0 5A>G BL LNGMER LF:EE >O:IHK:MBHG BL LEHP>= =HPG MH LNO>E MA:M >OHENMBHG BL JN:LBLM:MBHG:KR 2A>G MA> MBF> =>KBO:MBO> BG EAL
Thin Film and Droplet Patterns Shaped by Surface Forces
209
H? $J BL G>@EB@B;E> :G= BM K>=NL BG MA> E>:=BG@ HK=>K MH MA> BGAH FH@>G>HNL '>EFAHEMS >JN:MBHG 8
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
8
210
Len M. Pismen 0.4
c
0.3 0.2 0.1 0
0.65
0.7
0.75
0.8
0.85
0.9
'%30# #>I>G=>G H? MA> LI>>= H? : LMK:B@AMEBG> ?KHGM I>K NGBM F BGMB:E =B>K>G - HG MA> I:K:F>M>K
2A> K>F:BGBG@ KFL RB>E= MPH F:MG=>G H? MA> K:MBH - HG MA> I:K:F>M>K H;M:BG>= ;R LHEOBG@ MA>L> MPH EBG>:K >JN:MBHGL BL LAHPG BG %B@ 2A> LI>>= BL IHLBMBO> B> MA> MABG EF :=O:GL PA>G LEHP=HPG :M MH MA> NII>K EBFBM BL =N> MH BG:LBG@ JNBEB;KBNF MABLL =>:L>L HG MA> MAB :G= BG:L>L HG MA> MABG LB=> PA>G ;>L FHK> G>@:MBO> MA> EF IKHE> =>O>EHIL : ;NFI HG MA> MAB : =BI HG MA> MABG LB=> =NKBG@ >O:IHK:MBHG 5A>G B> =NKBG@ GL:MBHG MA> IKHE> G>:K MA> ?KHGM BL FHGHMHGB :IIEB MH BLHE:M>= =KHIE>ML 8I:G L HK AHE>L K>FHO>= ?KHF HMA>K LBFBE:K H;C>EE :L ?KHF :GR ;HNG=:KB>L :M : =BLM:G ?:K >Q>=BG@ MA> NGBMR BG MA> EHG@L =BF>GLBHGE>LL NGBML H? $J 2A> LM:MBHG:KR LHENMBHG H? $J LIHG=BG@ MH : MABG E:R>K BL 9 8 9 8 PA>K> 9 BL MA> K:=B:E :G= :K> FH=B>= !>LL>E ?NG H;M:BG>= BG MA> L:F> P:R :L BG MA> IK>=BG@ LN;L> F:MK> HG> LAHNE= L>M 2 8 + 8 2 8 + 8 + 2A> IKH;E>F BL LHEO>= :G:ERMB K>LNEMBG@ >QIK>LLBHGL :K> MHH KLHF> :G= MA> K>LNEML MM>K :LL>LL>= @K:IAB ?KHGM LI>>= BL >QIK>LL>= ;R : EBG>:K K>E:MBHG - / + / +
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
212
Len M. Pismen 0.001
c
0.0009 0.0008 0.0007 0.0006
0
5
10 a
15
20
'%30# 2A> =>I>G=>G H? MA> LI>>= H? MA> K>GM O:EN>L H? 2A> E:MM>K ?KHF ?HK MA> EHP>K MH ?HK MA> NI>K PBMA MA> BGF>GM
2A> H;M:BG>= NLBG@ MA> F:MK> HG> LAHNE= L>M 2
8 + 8
2 8 + 8
+
2A> =>I>G=>G H? MA> O:IHK:MBHG HG BL LAHPG BG %B@
-*32'-, ', !-+-4',% $0+#
2A> JN:LBLM:MBHG:KR :IIKHQBF:MBHG ;>L BG:=>JN:M> PA>G MA> ?KHGM IKHI:@:MBHG LI>>= BG:L>L 2A>G MA> GHGLM:MBHG:KR >JN:MBHG A:L MH ;> LHEO>= BG MA> HNM>K K>@BHGL LLNFBG@ :L ;>?HK> MA:M 0 K>F:BG MH MA> MPH LM:MBHG:KR O:EN>L 0 :G= NLBG@ MA> >JNBEB;KBNF K>E:MBHG MA> HNM>K >JN:MBHGL K>PKBMM>G :L 7 0 9 8
Thin Film and Droplet Patterns Shaped by Surface Forces
213
0 -0.005
0.68
-0.01 0.9
-0.015 -0.02 -0.025 0
2
4
6
8
10
ac '%30# 2A> =>I>G=>G H? MA> K>GM O:EN>L H? MA> I:K:F>M>K
%HK : LMK:B@AMEBG> ?KHGM MABL >JN:MBHG LHEO>= BG MA> IKHI:@:MBG@ PBMA :G :L R>M NGDGHPG LI>>= - (M BL K>PKBMM>G MA>G :L - 8
PA>K> - - 0 2A> @>G>K:E LHENMBHG BL 8 > 8 -
2A> NQ>L 2 8 :K> GHP O>EHI>G=>GM LH MA:M MA>L> >QIK>LLBHGL A:O> MH ;> LHEO>= MH@>MA>K PBMA $J :G= MA> :E@>;K:B< LMKN H? MA> F:MKR KLHF> %HK MNG:M>ER MA> =>I>G=>G HG K>F:BGL EBG>:K :G= MA> BFIEBI>G=>G - H;M:BG>= :G:ERMBBM BG : ?HKF GHM M ?HK : ANF:G >R> 2PH MRIB LAHPG BG %B@ @K:IAB BGL>M LAHPL MA:M MA> =B>K>G ;>MP>>G MA> IKHI:@:MBHG LI>>= = BG MA> :G= MA:M = BG MA> JN:LBLM:MBHG:KR :IIKHQBF:MBHG K>F:BGL PBMABG : ?>P I>KGM:@> IHBGML PA>G BL PBMABG MA> L:F> K:G@> :L MA> =B>K>G ;>MP>>G :G= MA> >JNB EB;KBNF FBGMB:E ?HK MA> ;NED NB= 2ABL KO> :L :G BG=B ?KHGM IKHI:@:MBHG LI>>= = BG :L : ?NGK>GM O:EN>L H? MA> I:K:F>M>K (GL>M ;EHPNI G>:K MA> HKB@BG 2A> ?KHGM BL NGLM:;E> PA>G -
0.0014 0.0012
,c0
0.001 0.0008 0.0006
c0
0.0004 0.0002 0 0.65
0.7
0.75
0.8
0.85
0.9
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
) &)) )( )) X+O=+ X SBB%GO ,55( " ((55( $5($52 ( 15 !05$2 0525( &(.52) &1 &( 05 525( 5$ 5 (52 2$ 22 25.5 ( * 52 ( 52 2$5($5 055 (5"$ 05(5( ) $ $ 5 (5) 5# $)2 2052 ( $(2 $(
0 " $)2 ( $5 2 " ( (5$5 5 ! (2* 5+5+ (2) 0 " 5(5 ( .(2.32 2 (
2 "$5* 2( 05(5( ( ( () .( 2 5 2 05 12*5*'("5 (2) " 2 5 2 0 52 05 "( " # ( 2 !05$ 52 " 05 $52(( 05(5( 5 525(5 ( 5 05 5$ 5 (52 5 25 ( 05 +2 " (5 ( ( %% ,.2 %% '5$05 4( ( 4"202 - ( ( 52 $5 ( 05 5"55($52
)(
( (%)
% (%) ( )(
(!)") " (
#) )(
'
) ( ( )!(! ) ) ) (%)
( ( (
%
( ) ( ()!(()
' '
220
( ( (
%
Alexander A. Golovin ( ) ( ()!(()
' '
Interfacial Phenomena in Materials Science
221
!( (&)
&O+ B JW+ B=+ZJ GOJ+ MG . B+Z GO J+ GZ ZMG+OM+ GZ ZZBMGJ+= GJW JW+ BBGO 8+ZJGBO WJ =+J+ GO+Z JW+ +8GG G8 M UZJ ZW.+ 2W+ OZ+ JB JWGZ 8+ZJGBO GZ JW+ Z+ Z JB OBJW+ BO+ WU G8G= = B.Z + Z.W+ GM /J GZ MBBO "OB+=+ JWJ G8G= = B.Z + Z.W+ GM +M8Z+ Z.W+ + GZ B=U JWJ WZ GOG Z8 M+ + J G%+O MBOZJOJ %B8+ DGOM+ ++ G8G= Z8 M+ GZ MW MJ+ GC+= U +M+ZZ4 Z8 M+ +O+ U .+ 8OGJ +4 Z.W+ GM ZW.+ GOGGC+Z JW+ = B. +O+ U O= JW+ +B + MB
+Z.BO=Z JB JW+ B=UOGM +8GG G8 2W+ ZGG 8+OJ B "Z B +8GG G8 M UZJ ZW.+Z 2W+ =G! + +OM+ GZ JWJ4 8OG"+ ZG.+ G8G=Z4 M UZJZ + OBJ GZBJ B.GM JW+U W%+ =GZJGO8GZW+= =G +MJGBOZ =+J+ GO+= U JW+ ZJ 8MJ8 + B JW+ M UZJ JJGM+ XZ +Z8J4 Z8 M+ +O+ U B ++ Z8 M+ B M UZJ =+.+O=Z BO JW+ Z8 M+ B G+OJJGBO GJW +Z.+MJ JB JW+ M UZJ JJGM+ 2W8Z4 JW+ 8+ZJGBO B JW+ +8GG G8 ZW.+ B M UZJ MO + JW+JGMU B 8J+= GO JW+ BBGO U G%+O JW+ =+.+O=+OM+ B JW+ M UZJ Z8 M+ +O+ U BO JW+ Z8 M+ B G+OJJGBO4 ?O= JW+ Z8 M+ ZW.+ JWJ GOGGC+Z JW+ JBJ Z8 M+ +O+ U4 . B%G=+= JW+ M UZJ %B8+ GZ MBOZJOJ
G
G
l G
3
l
2
l
1
X M UZJ . ++.G.+= GJW OGZBJ B.GM Z8 M+ +O+ U 6BOZG=+ ? ZJ JW+ BBGO ZG.+ . B+ 6BOZG=+ M UZJ JWJ WZ JW+ ZW.+ B . ++.G.+= GJW JW+ +=+Z W%GO JW+ +OJWZ % % O= % Z++ G@ [+J JW+ M+Z OB JB JW+ +=+Z % W%+ JW+ Z8 M+ +O+ U .+ 8OGJ + ) 4 $ 0 @ - 4 Z++ G@ 2W+ JBJ Z8 M+ +O+ U GZ4 JW+ +B +4 0 ) % % F ) % % F ) % %
@
222
Alexander A. Golovin
O= JW+ %B8+ B JW+ M UZJ GZ 0 % % %
-
2W8Z + W%+ JW+ BBGO . B+ ?O= % Z8MW JWJ 0 $7 O= 0 2(74 JW+ =G8Z B JW+ Z.W+ + GOM +Z+Z O= JW+ M UZJ BZ B 3 @ 3+ + B 3 >4 3 3 >+ 4 WGMW +OZ JWJ M UZJ4 WBZ+ =G8Z GZ +ZZ JWO JW+ M GJGM O8M+JGBO
=G8Z4 ZW GO"Z GO ?OGJ+ JG+
(")#)# (!
&O+ GWJ Z" JW+ BBGO 8+ZJGBO G BGO Z.W+ GM M UZJ +! GO Z.W+ GM =8 GO JW+ JG+ B GJZ BJW /O B =+ JB OZ+ JWGZ 8+ZJGBO + ZW .+ B GO+ ZJGGJU OUZGZ B Z.W+ GM M UZJ BGO GOJB O 8O=+ MBB+= +J 6BOZG=+ BGO Z.W+ GM M UZJ J M+ JGO B+OJ B JG+ W+O GJZ =G8Z GZ +8 JB 3 + GOJ B=8M+ JW+ Z+ =G+OZGBO+ZZ % G+Z Z GO JW+ . +%GB8Z D+MJGBO4 O= 8Z+ JW+ 8ZG!ZJJGBO U .. BGJGBO D.W+ GMU!ZU+J GM J+.+ J8 + . B?+Z GO JW+ +J O= JW+ ZBG=4 O= 4 + =+ZM G+= U + 7 6BOZG=+ .+ J8 += J+.+ J8 + . B?+Z 0 F ( +
0 F ( +
W+ + JW+ J+.+ J8 + .+ J8 JGBOZ ( + =+.+O= BO JW+ =G MBB =G! OJ+ O= JW+ .B O+4 O= BO JG+Q JW+ =+.+O=+OM+ B JW+ .+ J8 JGBOZ BO JW+ CG8JW O+ MO + O++MJ+= + ZB MBOZG=+ JW+ ZW.+ B JW+ BGO M UZJ JB + .+ J8 += Z ( 0 3 F 3+
YN
Interfacial Phenomena in Materials Science
233
/O JW+ 8ZGZJJGBO U .. BGJGBO JW+ .+ J8 JGBOZ B JW+ J+.+ ! J8 + ?+=Z + =+ZM G+= U JW+ [.M+ +8JGBO4 ( 0 N
W+ + 0
@ / /
/ /
F
@
Y@ 0
/ /
ZGO
/ /
Y-
2W+ GO+ GC+= B8O= U MBO=GJGBOZ I B JW+ .+ J8 JGBOZ ( O= ( 3 += ( ( ( J 0 3
3 0 ( F 3 0 > Y ( F ( ( ( ( 3 ( ( 06 F 6 3 J 0 3 Y + ( GZ JW+ .+ J8 JGBO B JW+ +O M8 %J8 + MB
+Z.BO=GO JB JW+ A+ +4 F 34 ( .+ J8 += ZW.+ B JW+ M UZJ 3 0 3 WGMW GZ MB.8J+= Z ( 0 @ F @3 ( YY -3 DB8JGBOZ B Y@4 B8O=+= J GO?OGJU O= GO JW+ M+OJ+ B JW+ M UZJ4 W%+ JW+ BBGO B 0
: + ! MBZ
0
# + ! MBZ
YI
W+ + ! MBZ + [++O= + .BUOBGZ W+ + + MBOZG=+ .+ J8 JGBOZ JWJ =B OBJ MWO+ JW+ %B8+ B JW+ M UZJQ JW+ B=+ MB
+Z.BO=GO JB % 0 N GZ JW+ +B + Z+OJ 6BOZG=+ JW+ .+ J8 JGBO B JW+ M UZJ Z.W+ GM ZW.+ GO JW+ B ( 30 +! MBZ Y7
B JW+ B8O= U MBO=GJGBO Y BO+ ?O=Z %% F @ > : 0 3 %% F @3 # 0 >3 @ -
Y$
ZY$ MBOO+MJ .+ J8 JGBOZ B JW+ J+.+ J8 + ?+=Z JB JW+ .+ J8 JGBO B JW+ M UZJ ZW.+ 2W+O4 8ZGO Y$ O= JW+ W+J ,8 OM+ B8O= U MBO=GJGBO Y BO+ BJGOZ > % @
0 6 %% F - F F % F % @ Y + 3 -3
234
Alexander A. Golovin
Y G%+Z JW+ +%B8JGBO +8JGBOZ B JW+ MB+MG+OJZ =+ZM GGO JW+ .+ J8 JGBOZ B JW+ M UZJ!+J GOJ+ M+ &O+ MO Z++ JWJ JW+ B=+ MB
+Z.BO=GO JB % 0 @ O+GJW+ BZ OB =+MUZ ZGOM+ GJ MB
+Z.BO=Z JB WBB+O+B8Z J OZJGBO B JW+ Z.W+ GM M UZJ O= JW+ ZUZJ+ GZ J OZ! JGBOU GO% GOJ 2W+ B=+Z JWJ =+ZM G+ JW+ .+ J8 JGBOZ B JW+ M UZJ Z.W+ GM ZW.+ MB
+Z.BO= JB % - - 2W+U B GO JG+ G + - N B
% 0 - + ?O= > @ 0 @ $6 F @ IN + 3 -3 2W8Z4 B 6 0 N4 JW+ Z.W+ GM ZW.+ B BGO M UZJ +MB+Z 8OZJ+ W+O 3 - 3 0 7>4 G+ W+O JW+ M UZJ =G8Z +MB+Z 7 JG+Z + JWO JW+ M GJGM O8M+JGBO =G8Z4 3 B 6 0 @ JW+ GOZJGGJU BMM8 Z W+O JW+ M UZJ =G8Z +M++=Z 3 @@ JG+Z4 O= B 6 0 - JW+ GOZJGGJU BMM8 Z W+O JW+ M UZJ =G8Z +M++=Z 3 @Y JG+Z XZB4 GJW JW+ GOM +Z+ B JW+ M UZJ =G8Z4 WGW+ W BOGMZ4 MB
+Z.BO=GO JB % - - +MB+ 8OZJ+ 2WGZ GOZJGGJU Z ? ZJ ZJ8=G+= U K8GOZ O= D+"+ " K8GOZ O= D+"+ " 4 @I O= GJ GZ M+= K8GOZ!D+"+ " GOZJGGJU /J GZ +Z.BOZG+ B JW+ B JGBO B ZOB,"+Z 2W+ 8GJJG%+ .WUZGM +MWOGZ B JW+ K8GOZ!D+"+ " GOZJGGJU GZ ZWBO GO GI W+O JW+ Z8 M+ B M UZJ BGO GOJB O 8O=+ MBB+= +J GZ =+B += Z ZWBO GO GI4 JW+ J+OJ W+J ,BZ U +ZG+ B JW+ . BJ 8ZGBO . JZ O= GZ MM88J+= GO JW+ J B8WZ4 WGMW +=Z JB ZJ+ ++CGO B JW+ . BJ 8ZGBOZ O= ZB+ ++CGO B JW+ J B8WZQ JWGZ ZU+J U M8Z+Z Z8 M+ .+ J8 JGBOZ JB B 2WGZ +MWOGZ GZ 8OG%+ Z GO JWJ GJ ..G+Z ZB JB .O Z8 M+ B M UZJ ++CGO GOJB O 8O=+ MBB+= +J KB + GOB JGBO B8J K8GOZ!D+"+ " GOZJGGJU GO % GB8Z ZUZJ+Z GJW B%GO M UZJ!+J GOJ+ M+ MO + B8O= GO #%GZ -NN@
$) )(
2W+ K8GOZ!D+"+ " GOZJGGJU B Z.W+ GM M UZJ BGO GOJB O 8O! =+ MBB+= +J =GZM8ZZ+= GO JW+ . +%GB8Z Z+MJGBO +Z8JZ GO JW+ B JGBO B MB.+ ZW.+Z4 ZGG JB JW+ ZW.+ B ZOB,"+4 M+= =+O= GJ+Z =8+ JB JW+G OMW+= ZJ 8MJ8 + XO +.+ B =+O= GJ+ M UZJ GZ ZWBO GO G7 /O=++=4 W+O .+ J8 JGBOZ B M UZJ!+J GOJ+ M+ B O= =+! %+B. JW+U B +JP B8J JW+ GOGJG ZW.+ B JW+ 8OZJ+ GOJ+ M+ XJ+
ZB+ JG+4 JW+ O+U B += GOJ+ M+ +MB+Z 8OZJ+ GJZ+4 U JW+ Z+ +MWOGZ4 JW8Z +=GO JB JW+ BJW B JW+ Z+MBO= U ZJ 8MJ8 + 2WGZ . B! M+ZZ MBOJGO8+Z JB =Z JW+ B JGBO B J+ JG U O= 8 JG U ZJ 8MJ8 +Z4 +JM MW ZJ 8MJ8 +4 WB+%+ 4 WZ MBBO +J8 + . BGM!G"+ JG. B O+ OMW =%OMGO GOJB JW+ +J /O JWGZ Z+MJGBO + ZW =GZM8ZZ JW+
Interfacial Phenomena in Materials Science
heat flows away here faster freezing
heat accummulates here slower freezing
235
MELT
CRYSTAL
K+MWOGZ B JW+ K8GOZ!D+"+ " GOZJGGJU
X =+O= GJ+ M UZJ B Z8MMGOBOGJ G+ B SG"ZO O= K ZW @ T+. GOJ+= GJW .+ GZZGBO B Z+%G+ DMG+OM+
236
Alexander A. Golovin
B JGBO O= . B.JGBO B JWGZ =+O= GJ+ JG. JWJ B Z JW+ ZGZ B JW+ WB+ =+O= GJGM ZJ 8MJ8 + [+J 8Z +O+ GC+ JW+ . B+ B BGO Z.W+ GM O8M+8Z =GZM8ZZ+= GO D+MJGBO - O= MBOZG=+ JW+ BJW B M UZJ B O GJ U ZW.+ GOJB O 8O=+ MBB+= +J [+J JW+ M UZJ ZW.+ + =+ZM G+= U 8OMJGBO + 0 N 2W+ +J J+.+ J8 + U B JW+ M UZJ4 4 GZ +ZZ JWO JW+ +8GG G8 +JGO J+.+ J8 + - B ZG.GMGJU4 +J 8Z O++MJ JW+ SGZ!2WBZBO +3+MJ B JW+ Z8 M+ +O+ U BO JW+ +8GG G8 J+.+ J8 + J JW+ M UZJ!+J GOJ+ M+ /O JWGZ MZ+ JW+ J+.+ J8 + J JW+ G8G=!ZBG= GOJ+ M+ G + +8 JB JW+ +8GG G8 +JGO J+.+ ! J8 + O= B +B%+ 4 JW+ J+.+ J8 + #/1 JW+ M UZJ G + "#/# O= +8 JB 4 ZGOM+ BJW+ GZ+4 W+J ZB8 M+Z B ZGO"Z B8= + . +Z+OJ GOZG=+ JW+ M UZJ 2W+ . B+ MO JW+ +B + + =+ZM G+= MB.+J+U U MBOZG=+ GO JW+ J+.+ J8 + ?+= + GO JW+ +J4 O= JW+ B8O= U MBO=GJGBOZ J JW+ M UZJ!+J GOJ+ M+ =+ZM GGO JW+ MBO=GJGBO B JW+ B! =UOGM +8GG G8 O= JW+ OM+ B W+J ,8 / 0
/+ 0 Q
I@ I-
0
I
= 8
0
6
I
A+ + GZ JW+ JW+ =G38ZG%GJU4 6 GZ JW+ JW+ MBO=8MJG%GJU4 = GZ JW+ J+OJ W+J B +JGO .+ 8OGJ %B8+4 8 GZ JW+ OB %+BMGJU B JW+ BGO M UZJ Z8 M+4 O= GZ JW+ Z8 M+ OB / O +%B%GO Z8 M+ GO JW ++!=G+OZGBO Z.M+ GZ G%+O U + 0 N4 JW+O //+ 0
8 0 IY DGOM+ GO B8 . B+ JW+ Z8 M+ B BGO M UZJ GZ O /,14 G+ GJ GZ =+?O+= U JW+ MBO=GJGBO + 0 N4 BO+ MO + GJ+ JW+ B8O= U MBO=GJGBO I Z 0
= / 6 /+
BO JW+ Z8 M+ 0
II
[+J 8Z OB 8Z+ JW+ BBGO J GM" GO%+OJ+= U /%OJZB% /%OJZB% 4 @ 7 6BOZG=+ 1 +II4 0 '
/
/+
I7
Interfacial Phenomena in Materials Science
237
Z /&1 11# 1 # B Q ZB%+ GJ O= ,1# ?O= ' JB ZJGZU +I@ [+J 8Z GOJ B=8M+ O+ 8OMJGBO4
0
'
2W+O4 0 ' //+ 0 ' / /+4 O= + BJGO JW+ BBGO ? ZJ!B =+ . JG =G3+ +OJG +8JGBO B / 0 /+
/ /
F
/ /?
F
/ /
I$
[+J 8Z MBOZG=+ JW+ BBGO +O+ ZB8JGBO B +I$ 0
F ? F F +
F F
I
W+ + + GJ U MBOZJOJZ XJ JW+ M UZJ Z8 M+ 0 O= 0 0 2(7 O= ?O= JWJ JW+ ZB8JGBO B8O=+= J GZ 0 +. # F ZGO MBZ # # -
244
Alexander A. Golovin
2W+ MBOZJOJZ O= + B8O= B JW+ JB B8O= U MBO=GJGBOZ J
0 N4 ZB ?OU + BJGO # 1 MBZ F 0 +. Y # # DB8JGBO Y BZ BO+ JB BJGO JW+ =+.+O=+OM+ B JW+ GO B8O= U BB%+ =+.JW BO JG+ /O=++=4 B 0 N + W%+ # N 0
- O= J"GO JW+ GO%+ Z+ [.M+ J OZB + BJGO #+
?N + 0 - >Y
I
W+ + > D8ZJGJ8J+ 7 GO - JB ?O= JW+ BBGO . B+ B 1 @ @ 1 1 F 1 0 N
@ 1N 0
- >Y
1 N 0 @
@
1 N 0 ->
$ 1 N 0 N
DB8JGBO B $! MO + B8O= GO J+ Z B WU.+ +B+J GM 8OMJGBO AB+%+ 4 GJ GZ B + MBO%+OG+OJ JB BB" B JW+ ZB8JGBO U +OZ B B+OG8Z +JWB=4 GO JW+ B 1 0 @NN
Interfacial Phenomena in Materials Science
245
D8ZJGJ8J+ @NN GO $! JB BJGO JW+ BBGO +M8
+OJ +JGBO B
JW+ MB+MG+OJZ 4 7 F 7 F 7 F -7 F @
@ 7 @
0 N
@N@
GJW
@
0 - >Y
0 @
@
0 ->
0 N
+ ?O= JWJ JW+ MB+MG+OJZ J+O= JB C+ B 8GJ+ 8GM"U4 0 N7$N 0 @NNNN 0 N-$II 0 N 0 NNN$@ 0 N 0 NNNN- 2W+ +Z8JGO Z8 M+ ZW.+ WZ JW+ B ZWBO GO G @N /J +WGGJZ /"#/ GJW =+MUGO .GJ8=+ O= JW+ %++OJW BGO Z I#+ 2W+ . +Z+OM+ B Z8 M+ BZMGJGBOZ GZ JW+ MW MJ+ GZJGM +J8 + B Z8 M+!=G38ZGBO!= G%+O Z8 M+ +JGBO JWJ BBZ B JW+ B8 JW Z.JG =+ G%JG%+ MB
+Z.BO=GO JB JW+ [.MGO B JW+ +O M8 %J8 + 2W+ =+ G%JGBO B JW+ Z8 M+!=G38ZGBO +8JGBO O= JW+ ZB8JGBO B JW+ GO!B8O= U BB%+ . B+ Z ? ZJ BJGO+= GO JW+ MZZGM ..+
U K8GOZ K8GOZ 4 @Y74 WGMW JW+ =+ G%JGBO . +Z+OJ+= GO JWGZ Z+MJGBO MBZ+U BBZ
( (! ( ) ( ()"(()! ( /O JWGZ Z+MJGBO + ZW =GZM8ZZ O G.B JOJ GOJ+ MG GOZJGGJU JWJ GZ
+J+= JB JW+ ?+= B OOBJ+MWOBBU O= +Z.BOZG+ B JW+ B JGBO B GOJ+ +ZJGO OOB!ZM+ Z8 M+ ZJ 8MJ8 +Z M+= 8OJ8 =BJZP 6BOZG=+ ? B ZBG= M UZJGO+ J+ G =+.BZGJ+= BO Z8 M+ B Z8ZJ J+ =+ B OBJW+ M UZJGO+ J+ G DBG=!BO!ZBG= =+.BZGJGBO GZ M+= +.GJU4 O= W+O JW+ =+.BZGJ+= J+ G GZ =G3+ +OJ B JWJ B JW+ Z8ZJ J+ GJ GZ M+= W+J+ B!+.GJU 2W+ =+.BZGJGBO . BM+ZZ GZ BJ+O =BO+ U +OZ B + B JBZ B B+M8+Z WGJJGO JW+ Z8ZJ J+4 JW+ ZB!M+= B+M8
+ +.GJU KH W+O JBZ + =+.BZGJ+= BO Z8ZJ J+ JW+U ZJGM" JB JW+ JBZ B JW+ Z8ZJ J+ ZB JWJ JW+ JBZ GOZG=+ JW+ BGO +.GJG ? +
O+= MMB =GOU DGOM+ JW+ M UZJ JJGM+ Z.MGOZ GO JB =G3+ +OJ J+ GZ 8Z8U =G3+ B BO+ OBJW+ "1 /",4 JW+ ? BZ GO O +ZJGMU ZJ +ZZ+= ZJJ+4 O= WZ +ZJGM +O+ U ZJB += GO GJ /4 Z +Z8J B ZB+ ,8MJ8JGBO4 Z .+ J8 JGBO GO JW+ B B Z WG ..+ Z BO JW+ ? Z8 M+4 JW+ + G + B + BB GOZG=+ JWGZ WG B JW+ JBZ B JW+ ? JB =58ZJ JW+G GOJ+ JBGM Z.MGO JB JW+ OB +8GG G8 %8+4 WGMW G += JB JW+ =+M +Z+ B JW+ +ZJGM +O+ U 2WGZ
246
Alexander A. Golovin
. BM+ZZ B JW+ WG B JGBO G JW+ +B + + +O+ +JGMU . ++ +4 WGMW G +Z8J GO O GOZJGGJU B .O ? JWJ G =+MB.BZ+ GOJB ZUZJ+ B GZO=Z 2W+ J OZ.B J +MWOGZ U WGMW JW+ ? Z8 M+ +MBOZJ 8MJZ GJZ+ GOJB ZUZJ+ B GZO=Z GZ Z8 M+ =G38ZGBO =GZM8ZZ+= GO JW+ . +%GB8Z Z+MJGBO 2WGZ +MWOGZ B JW+ GZO= B JGBO GZ ZMW+JGMU ZWBO GO G@@ Ge FILM Ge FILM
INSTABILITY Si SUBSTRATE
Si SUBSTRATE
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
@N- @ F ; W+ + GZ MBOZJOJ . B.B JGBO JB JW+ Z8 M+ =G38ZG%GJU B JBZ4 ) GZ JW+ Z8 M+ +O+ U4 GZ JW+ +O M8 %J8 +4 O= GZ JW+ . J B Z8 M+ MW+GM .BJ+OJG MB
+Z.BO=GO JB JW+ +ZJGM +O+ U ZJB += GO JW+ +.GJG ? /J GZ MB.8J+= Z BB W++Z O= BWOZBO 4 -NN 0
@ ,
-
@N
W+ + GZ JW+ ZJ GO J+OZB 4 , GZ JW+ ZJ +ZZ J+OZB [O=8 O= [GZWGJZ 4 @$@4 O= JW+ 8Z8 MBO%+OJGBO B JW+ Z8JGBO B%+ JW+ +.+J+= GO=GM+Z
Interfacial Phenomena in Materials Science
247
.+Z B 8OJ8 =BJZ 8..+ +J S+ #Z BO DGNN@ GGZ + @$ +. GOJ+= GJW .+ GZZGBO B GGZ + @$4 M @$ U JW+ X+ GMO 6W+GM DBMG+JUQ 8..+ GWJ D+ #Z BO 2+!BO!DG@@@ XMWG + -NN +. GOJ+= GJW .+ GZZGBO B M XMWG + -NN4 -NN U JW+ X+ GMO WUZGM DBMG+JUQ B+ +J /OXZ #Z BO SXZNN@ S O=BZ + -NN +. GOJ+= GJW .+ GZZGBO M B S O=BZ + -NN4 -NN U JW+ X+ GMO /OZJGJ8J+ B WUZGMZQ B+ GWJ MB Z+OGO B DGS+ #Z BO DGNN@ ?8 + MB
+Z.BO=Z JB J+ JG+ JWO B B + -NNN +. GOJ+= GJW .+ GZZGBO B B B M + -NNN4 -NNN U JW+ X+ GMO WUZGM DBMG+JU T+. GOJ+= GJW .+ GZZGBO B D. GO+
248
Alexander A. Golovin
GO 8Z+= /O JW+ .. BGJGBO B GO+ +ZJGMGJU JW+B U4 , O= + MBOO+MJ+= U JW+ BBGO +JGBO [O=8 O= [GZWGJZ 4 @$@ , 0 - . F
@N @F W+ + GZ JW+ ZW+ B=88Z4 GZ JW+ BGZZBO*Z JGB4 O= . GZ JW+ BO+"+
=+J 2W+ ZJ GO J+OZB GZ =+J+ GO+= U JW+ MB.BO+OJ B JW+ =GZ.M++OJ %+MJB JWJ MW MJ+ GC+Z Z =+B JGBOZ B ZBG= B=U4 0
@ / F / -
@NY
A+ + / =+OBJ+Z =G3+ +OJGJGBO GJW +Z.+MJ JB JW+ MBB =GOJ+ 4 $ 0 @ - 2W8Z4 GO B =+ JB ?O= JW+ +ZJGM MB.BO+OJ B JW+ ? Z8 M+ MW+GM .BJ+OJG + ZWB8= ?O= JW+ =GZ.M++OJ ?+= GO JW+ ? WGMW GZ =+J+ ! GO+= U JW+ +.GJG ZJ +ZZ M8Z+= U JW+ JJGM+ GZJMW +J++O JW+ ? O= JW+ Z8ZJ J+ 6BOZG=+ JWGO ZBG= ? =+.BZGJ+= BO Z+G! GO?OGJ+ ZBG= Z8ZJ J+ 2W+ GOJ+ M+ +J++O JW+ ? O= JW+ Z8ZJ J+ GZ .O O= JW+ !GZ GZ OB JB GJ4 GJW N MB
+Z.BO=GO JB JW+ Z8ZJ J+ O= N ; ? + MB
+Z.BO=GO JB JW+ ?Q 0 ; ? + =+ZM G+Z JW+ ZW.+ B JW+ ? ++ Z8 M+4 O= ? + JW+ MBB =GOJ+Z GO JW+ .O+ . + JB JW+ Z8ZJ J+ DGOM+ Z8 M+ =G38ZGBO . BM+ZZ+Z + 8MW ZB+ JWO JW+ Z.++= B ZB8O= GO M UZJGO+ J+ G JWJ =+J+ ! GO+Z JW+ MW MJ+ GZJGM JG+ B +ZJGM +JGBO4 + MO ZZ8+ JWJ J +MW B+OJ B JG+ JW+ + GZ +MWOGM +8GG G8 GO JW+ ? O= GO JW+ Z8ZJ J+ WGMW GZ =+ZM G+= U JW+ +8JGBO / , 0 N
@NI
+ ZWB8= ZB Z+J JW+ BBGO B8O= U MBO=GJGBOZ G ZJ +ZZ! ++ ? Z8 M+4 , 7 0 N
@N7
W+ + 7 + JW+ MB.BO+OJZ B JW+ OB JB JW+ ? Z8 M+Q GG MBOJGO8GJU B =GZ.M++OJ ?+= GO JW+ ? O= JW+ Z8ZJ J+ J JW+ .O Z8ZJ J+!? GOJ+ M+
@N$ 0 F 9 ? Q N
Interfacial Phenomena in Materials Science W+ + 90
249
@N
GZ JW+ JJGM+ GZJMW +J++O JW+ Z8ZJ J+ O= JW+ ? =+J+ GO+= U JW+ M UZJ JJGM+ Z.MGOZ B JW+ MB
+Z.BO=GO J+ GZ4 O= Q GGG ZJ +ZZ OM+ J JW+ .O Z8ZJ J+!? GOJ+ M+4 0 , Q ,
@@N
G% =+MU B =+B JGBOZ =++. GOJB JW+ Z+G!GO?OGJ+ Z8ZJ J+
B JW+ ?!Z8ZJ J+ GOJ+ M+ N
B
@@@
[+J 8Z ? ZJ MBOZG=+ JW+ ZGM ZJJ+P B JW+ +.GJG ?4 GO WGMW JW+ ZJ +ZZ+Z O= ZJ GOZ + MBOZJOJ O= JW+ ? ++ Z8 M+ GZ .O &%GB8ZU4 GO JWGZ MZ+ JW+ ZJ +ZZ O= ZJ GO GO JW+ Z8ZJ J+ 8ZJ + C+ B ZGOM+ JWGO ? MOOBJ =+B O GO?OGJ+U =++. Z8ZJ J+ 2W+ WB GCBOJ MB.BO+OJZ B JW+ ZJ GO J+OZB GO JW+ ? GO JW+ ZGM ZJJ+ + =+J+ GO+= U JW+ JJGM+ GZJMW4
0 0 9 @@- DGOM+ JW+ ? ++ Z8 M+ GZ ZJ +ZZ! ++ O= JW+ ZJ +ZZ GZ MBOZJOJ4 JW+O JW+ %+ JGM ZJ +ZZ MB.BO+OJ 8ZJ + C+ B4 , 0 N 2W+O B JW+ ZJ +ZZ! ZJ GO +JGBO @N + ?O= JW+ %+ JGM MB.BO+OJ B JW+ ZJ GO GO JW+ ?4 -9 0 @@ @ 2W+O4 GO B @N + ?O= JW+ WB GCBOJ MB.BO+OJZ B JW+ ZJ GO J+OZB 4
@ F @@ ,
0 , 0 -9 @ . +ZZGBOZ @@-!@@ + M+= +.GJG ZJ GO O= @@ GZ M+= +.G! JG ZJ +ZZ + MO Z++ JWJ BJW + . B.B JGBO JB JW+ JJGM+ GZJMW 9 9B + MO MB.8J+ JW+ +ZJGM +O+ U ZJB += GO O +.GJG ?
@ @ F 0 , 0 -9 @@Y @
250
Alexander A. Golovin
9BJ+ JWJ JWGZ +O+ U =B+Z OBJ =+.+O= BO JW+ ZGO B JW+ JJGM+ GZJMW4 G+ GJ =B+Z OBJ =+.+O= BO W+JW+ JW+ +.GJG ZJ GO GZ MB. +ZZG%+ B
J+OZG+ XZ =GZM8ZZ+= B%+4 .O 4 ZJ +ZZ+= +.GJG ? ZWB8= + 8OZJ+ GJW +Z.+MJ JB JW+ 8O=8JGBOZ B JW+ ? ++ Z8 M+ JWJ MO +Z8J GO JW+ B JGBO B B8O=Z O= GO JW+ =+M +Z+ B JW+ +ZJGM +O+ U ZJB += GO JW+ ? /O B =+ JB ZWB JWJ + O++= JB .+ B GO+ ZJGGJU OUZGZ B JW+ ZGM ZJJ+ =+ZM G+= B%+ 2WGZ OUZGZ GZ 8GJ+ M8+ ZB+ O= JW+ =+JGZ MO + B8O= GO D.+OM+ + @@4 @ A+ + + ZW =+ZM G+ JW+ GO ZJ+.Z B JWGZ OUZGZ + MBOZG=+ GO?OGJ+ZG .+ J8 JGBOZ B JW+ =GZ.M++OJ ?+= O= JW+ ? ++ Z8 M+ B JW+ ZGM ZJJ+ GO JW+ B ( 0 0 >
( ; 0 ; ; 0 >
@@I
W+ + 0 ?4 GZ JW+ .+ J8 JGBO %+%+MJB O= GZ JW+ .+ J8 JGBO BJW J+4 O= GO+ GC+ JW+ ZUZJ+ @N-!@@@ + JW+O BJGO ZUZJ+ B GO+ =G3+ +OJG +8JGBOZ B JW+ MB.BO+OJZ B JW+ %+MJB !8OMJGBO O= ZB%+ GJ 8ZGO JW+ GO+ GC+= B8O= U MBO=GJGBOZQ G + BJGO+= GO J+ Z B +.BO+OJG 8OMJGBOZ B GJW MB+MG+OJZ =+.+O=GO BO 4 4 Z + Z +ZJGM MBOZJOJZ B JW+ ? O= JW+ Z8ZJ J+ O= JW+ JJGM+ GZJMW 9 2W+O4 8ZGO JW+ GO+ GC+= Z8 M+ =G38ZGBO +8JGBO @N- + ZW BJGO 0 5 9 +ZJGM MBOZJOJZ
@@7
W+ + 5 GZ ZB+ M8+ ZB+ 8OMJGBO B GJZ % G+Z B @@74 Z JW+ MBO=GJGBO JB W%+ OBO!J G%G 4 + +=GU BJGO JW+ =GZ.+ ZGBO +JGBO 0 5 9 +ZJGM MBOZJOJZ +J++O JW+ .+ J8 JGBO BJW J+ O= JW+ %+O8+ /O JW+ BO!%+ GGJ4 ; @4 JW+ =GZ.+ ZGBO +JGBO G += 0
@@$ W+ + 9 - N GZ . B.B JGBO JB JW+ JBJ +ZJGM +O+ U ZJB += GO JW+ ?4 O= ) GO+ U =+.+O=Z BO JW+ Z8 M+ +O+ U ) GO JW+ MZ+ W+O JW+ +ZJGM MBOZJOJZ B JW+ Z8ZJ J+ O= JW+ ? + +84 0 ) 2W8Z4 B JW+ =GZ.+ ZGBO +JGBO @@$ + MO Z++ JWJ +.GJGU ZJ +ZZ+= ZBG= ? GZ UZ 8OZJ+ GJW +Z.+MJ JB Z8 M+ 8O=8JGBOZ 2W+ =GZ.+ ZGBO +JGBO @@$ GZ ZWBO GO G@ 2W+ +ZJGM +O+ U WZ =+ZJGGCGO +3+MJ W+ +Z JW+ Z8 M+ +O+ U WZ ZJGGCGO +3+MJ #+ZJ! GGCGO +3+MJ GZ + JWO JW+ ZJGGCGO BO+ B BO!%+ .+ J8 JGBOZ O= Z+ B ZWB J!%+ .+ J8 JGBOZ 2W+ MB.+JGJGBO B JW+ JB +3+MJZ
Interfacial Phenomena in Materials Science
251
W
+=Z JB JW+ Z++MJGBO B MW MJ+ GZJGM %++OJW B JW+ BGO ZJ 8M! J8 +4 6 0 -14 4 W+ + 4 MB
+Z.BO=Z JB JW+ G8 B JW+ =GZ.+ ZGBO
+JGBO
0
kc
0 k
#GZ.+ ZGBO +JGBO @@$
2W+ GOZJGGJU B O +.GJG ? M8Z+= U +.GJG ZJ +ZZ =8+ JB JJGM+ GZJMW +J++O JW+ ? O= JW+ Z8ZJ J+ GZ M+= XZ B!2G+ ! S GO+= X2S GOZJGGJU JWJ Z ? ZJ ZWBO JB BMM8 B ZJ +ZZ+= Z+G! GO?OGJ+ ZBG= GJW ++ Z8 M+ XZ B O= 2G+ 4 @7-Q S GO+= 4 @$I 2W+ ZJGGJU OUZGZ =+ZM G+= GO JWGZ Z+MJGBO Z ? ZJ =BO+ GO D.+OM+
+ 4 @@4 @ /J =+ZM G+Z JW+ GOZJGGJU JWJ +Z8JZ GO JW+ B ! JGBO B 8OJ8 =BJZ BO JW+ Z8 M+ B O +.GJG ZBG= ? 2W+ + + BJW+ +3+MJZ JWJ MO + G.B JOJ B JW+ B JGBO B #Z4 B +.+4 +JJGO GOJ+ MJGBOZ +J++O JW+ ? O= JW+ Z8ZJ J+ O= Z8 M+!+O+ U OGZBJ B.U &O+ MO += B8J JW+Z+ +3+MJZ Z + Z B8J OBOGO+
+%B8JGBO B JW+
UZ B #Z GO SBB%GO + 4 -NNI4 -NN Q [+%GO+ + 4 -NN7 O= GO ++ +OM+Z JW+ +GO
252
Alexander A. Golovin
&! XMWG4 # )GGO4 S BZJB C4 O= A )B D+!ZZ++= Z+G! MBO=8MJB 8OJ8 =BJZ GJW O+ U 8OGB ZGC+Z ,%/ '1* 014 NN-I@N 4 -NN T XZ B O= X 2G+ /OJ+ M+ B .WBBU =+%+B.+OJ =8 GO ZJ +ZZ MB
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
*1 #/4 XM=+GM +ZZ4 @$$ [# [O=8 O= K [GZWGJZ /" ,%/"/4 .J@4 6W. @Y4 D+M @YY + BO +ZZ4 &B =4 @7$!L@$@' [# [O=8 O= K [GZWGJZ /"% ,1% + BO +ZZ4 &B =4 @$@ KD [+%GO+4 XX SBB%GO4 DA #%GZ4 O= BB W++Z D+!XZZ+U B 8OJ8 #BJZ GO 2WGO .GJG G +JJGO O ZJGM D8ZJ J+ ,%/ '1* 7Y-NY@-4 -NN7
Interfacial Phenomena in Materials Science
253
K8GOZ 2W+B U B JW+ BB%GO ! - ,%/4 -$4 @Y7 K8GOZ O= T D+"+ " KB .WBBGM ZJGGJU B . JGM+ BGO U =G38ZGBO B W+J ,B ! - ,%/4 -!-4 @I X G.GO+G O= GGO ,%/"/ %/ $,4 6 G=+ OG%+ ! ZGJU +ZZ4 @$
X DWMW8"GO O= # HG+ D.BOJO+B8Z B =+ GO B OOBZJ 8MJ8 +Z BO M UZJ Z8 M+Z '1* ,%/4 7@@@-Y@@7@4 @ H D.+OM+ 4 BB W++Z4 O= DA #%GZ KB .WBBGM GOZJGGJU GO +.GJGU!ZJ GO+= =GZBMJGBO! ++ ZBG= ?Z ,%/ '1* 014 I7II I4 @@ H D.+OM+ 4 DA #%GZ4 O= BB W++Z KB .WBBGM GOZJGGJU GO +.GJGU!ZJ GO+= =GZBMJGBO! ++ ZBG= ?Z GO+ ZJGGJU JW+B U ! - ,%/4 7 YY 7N4 @ DJO4 ABU O= S H8+ DJ 8MJ8 . B.+ JG+Z B Z+!B OGC+= Z+GMBO=8MJB OOBZJ 8MJ8 +Z '1* ,%/4 7I7-Y7$4 -NN BB W++Z O= 6 BWOZBO 2W+ JW+ B=UOGMZ B +ZJGMU ZJ +ZZ+= M UZJZ ,%/ -* '1/ - Y@-N@4 -NN TD GGZ4 S K+=+G BZ!TG+G B4 2/GOZ4 O= #XX &W+ 8GG G8 ZW.+ =G B ZJ GO+= S+ OOBM UZJZ BO DGNN@ ! ,%/ ,1 4 @N-INYIN4 @$ BZ8O S 83 )8 + =+ S+ZMWGO=G"+GJ =+Z MWZJ8Z 8O= =+ X8ZE =+ UZJ,EMW+O . / 4 !YN4 @N@
$ "" !"$" $ "$" ! "$ "$ $ ID 1 LDD 09#9,# % 49 ) , ,99 , +, 297 #- % 8 '" +5 #% , #49 #499 79)# ,7 % #4 7 )4#9 #49 99 7 29, , 9 % ,7# # 97 #4# )) &49, 479 )4,9 #/97 )9 49, ( #,7 ,# 7 ,# 2 9,9- 7 9 #49 929 9 # #49 ,#9%)9 9#&99, #4 4797 49 . 9)# , % # , % #49 7%)9 #49 7 , % #49 #9,# 9,#7 #499 , #49 ,:9,)9 % 7%)9 9,9- , 9779 #99. #9 9 %)#7 #4# 9)# #49 4- % #49 ,#9%)9 9 74& #49 99 4& 7)4 97 - 9 2 9&9 , 4& #4974 9 ,-9 & 9 97 ,9 % 7 )# , , #49 #49 % 92# , 9 29, 49 9%99,)97 % &4 )4 #4 7 #9 47 99, #9 9 7 29,
$"
"' '
"%% #%% % ' ' 49 4-7 )7 % #49 ,7# #- 49 $9 49 !79 # , 49 9## , (# ,7
"'
$ 6 " "6 ""
! !' % &' "' ,#)# , 49 4-7 ) 9 ' 4-7 )7 % #49 479.)4,9 9 & #4# ),29)# , 4-7 )7 % #49 479.)4,9 9 & #4 ),29)# , 6 49 #49# ) 9 " 49 79 7##9 7# , , #49 9#9 9(# ,7 # , 99)# % #49 2 :&
'
6
1 1
! !' % ' %%'% ' "' ' ,#)# , *
256 ' '' ' '6 '" ' '1
Ranga Narayanan 49 4-7 ) 9 $#49# ) 9 , ,9 ,-7 7 9## , 9 ,7 ,7 3292 9& 9#9 9(# ,7 0 7)77 ,
6 '*'
The Physics and Analyses of Interfacial Instabilities…
257
$ "" !"" " $ $ $ (D ?N