TRANSITION FROM METASTABILITY TO INSTABILITY IN A BINARY-LIQUID MIXTURE

被引:73
作者
TANAKA, H [1 ]
YOKOKAWA, T [1 ]
ABE, H [1 ]
HAYASHI, T [1 ]
NISHI, T [1 ]
机构
[1] UNIV TOKYO,FAC ENGN,DEPT APPL PHYS,BUNKYO KU,TOKYO 113,JAPAN
关键词
D O I
10.1103/PhysRevLett.65.3136
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In a binary mixture of oligomers of styrene and caprolactone, we have studied a transition from metastability to instability by changing a quench depth systematically under an off-critical quench condition. The concentration distribution function turns out to be a good fingerprint for determining whether phase separation is nucleation-growth type or spinodal-decomposition type. We also demonstrate clear morphological and kinetice evidence of a diffuse metastable-unstable transition or crossover phenomena theoretically predicted for the system with a finite-range interaction. © 1990 The American Physical Society.
引用
收藏
页码:3136 / 3139
页数:4
相关论文
共 21 条
[2]   NUCLEATION BARRIERS, SPINODALS, AND THE GINZBURG CRITERION [J].
BINDER, K .
PHYSICAL REVIEW A, 1984, 29 (01) :341-349
[3]   SPINODALS IN A LONG-RANGE INTERACTION SYSTEM [J].
HERRMANN, DW ;
KLEIN, W ;
STAUFFER, D .
PHYSICAL REVIEW LETTERS, 1982, 49 (17) :1262-1264
[4]   EXPERIMENTAL STUDIES OF NUCLEATION IN NEAR-CRITICAL LIQUID-MIXTURES [J].
HOWLAND, RG ;
WONG, NC ;
KNOBLER, CM .
JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (01) :522-531
[5]   HOMOGENEOUS NUCLEATION IN A CRITICAL BINARY FLUID MIXTURE [J].
HUANG, JS ;
VERNON, S ;
WONG, NC .
PHYSICAL REVIEW LETTERS, 1974, 33 (03) :140-143
[6]   OBSERVATION OF ANOMALOUSLY LARGE SUPERCOOLING IN CARBON-DIOXIDE [J].
HUANG, JS ;
GOLDBURG, WI ;
MOLDOVER, MR .
PHYSICAL REVIEW LETTERS, 1975, 34 (11) :639-642
[7]   STUDY OF CELL DISTRIBUTION-FUNCTIONS OF THE 3-DIMENSIONAL ISING-MODEL [J].
KASKI, K ;
BINDER, K ;
GUNTON, JD .
PHYSICAL REVIEW B, 1984, 29 (07) :3996-4009
[8]   PSEUDOSPINODALS, SPINODALS, AND NUCLEATION [J].
KLEIN, W ;
UNGER, C .
PHYSICAL REVIEW B, 1983, 28 (01) :445-448
[9]  
KONINGSVELD HAG, 1970, P ROY SOC A, V319, P331
[10]   NUCLEATION AND GROWTH IN A POLYMER-SOLUTION [J].
KRISHNAMURTHY, S ;
BANSIL, R .
PHYSICAL REVIEW LETTERS, 1983, 50 (25) :2010-2013