A NEW COARSENING MECHANISM OF DROPLET SPINODAL DECOMPOSITION

被引：71
作者：
TANAKA, H
机构：
[1] Institute of Industrial Science, University of Tokyo, Minato-ku
来源：
JOURNAL OF CHEMICAL PHYSICS | 1995年 / 103卷 / 06期
关键词：
D O I：
10.1063/1.469658
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We propose here a new coarsening mechanism (''diffusion-coupling mechanism'') of droplet phase separation. For a system of high droplet density, the inhomogeneous distribution of droplets and the resulting anisotropic, selective coupling between the diffusion fields around neighboring droplets lead to the formation of the closed iso-concentration lines including more than two droplets. The excess energy associated with the concentration gradient in the matrix phase around neighboring droplets tries to reduce the length of the iso-concentration lines and causes the attractive interaction between the droplets. This mechanism could accelerate the droplet coarsening in spinodal decomposition. (C) 1995 American Institute of Physics.
引用
收藏
页码：2361 / 2364
页数：4
相关论文
共 27 条
[11]  
LEVICH VG, 1962, PHYSICOTECHNICAL HYD
[12]   THE KINETICS OF PRECIPITATION FROM SUPERSATURATED SOLID SOLUTIONS [J].
LIFSHITZ, IM ;
SLYOZOV, VV .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 19 (1-2) :35-50
[13]   SCALING LAW IN THE ORDERING PROCESS OF QUENCHED THERMODYNAMICALLY UNSTABLE SYSTEMS [J].
OHTA, T .
ANNALS OF PHYSICS, 1984, 158 (01) :31-66
[14]   NUCLEATION AND GROWTH OF TIGHTLY PACKED DROPLETS IN FLUIDS [J].
PERROT, F ;
GUENOUN, P ;
BAUMBERGER, T ;
BEYSENS, D ;
GARRABOS, Y ;
LENEINDRE, B .
PHYSICAL REVIEW LETTERS, 1994, 73 (05) :688-691
[15]   LATE STAGES OF SPINODAL DECOMPOSITION IN BINARY-MIXTURES [J].
SIGGIA, ED .
PHYSICAL REVIEW A, 1979, 20 (02) :595-605
[16]   TRANSITION FROM METASTABILITY TO INSTABILITY IN A BINARY-LIQUID MIXTURE [J].
TANAKA, H ;
YOKOKAWA, T ;
ABE, H ;
HAYASHI, T ;
NISHI, T .
PHYSICAL REVIEW LETTERS, 1990, 65 (25) :3136-3139
[17]   NEW COARSENING MECHANISMS FOR SPINODAL DECOMPOSITION HAVING DROPLET PATTERN IN BINARY-FLUID MIXTURE - COLLISION-INDUCED COLLISIONS [J].
TANAKA, H .
PHYSICAL REVIEW LETTERS, 1994, 72 (11) :1702-1705
[18]   DYNAMIC INTERPLAY BETWEEN PHASE-SEPARATION AND WETTING IN A BINARY MIXTURE CONFINED IN A ONE-DIMENSIONAL CAPILLARY [J].
TANAKA, H .
PHYSICAL REVIEW LETTERS, 1993, 70 (01) :53-56
[19]   HYDRODYNAMIC INTERFACE QUENCH EFFECTS ON SPINODAL DECOMPOSITION FOR SYMMETRICAL BINARY-FLUID MIXTURES [J].
TANAKA, H .
PHYSICAL REVIEW E, 1995, 51 (02) :1313-1329
[20]   DOUBLE-PHASE SEPARATION IN A CONFINED, SYMMETRICAL BINARY MIXTURE - INTERFACE QUENCH EFFECT UNIQUE TO BICONTINUOUS PHASE-SEPARATION [J].
TANAKA, H .
PHYSICAL REVIEW LETTERS, 1994, 72 (23) :3690-3693
123