DISCOVERY OF A POTENTIALLY HOMOGENEOUS-NUCLEATION-BASED CRYSTALLIZATION AROUND THE GLASS-TRANSITION TEMPERATURE IN SALOL

被引：46

作者：

HIKIMA, T ^{[1
]}

HANAYA, M ^{[1
]}

OGUNI, M ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,FAC SCI,DEPT CHEM,TOKYO 152,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 93卷 / 08期

关键词：

CRYSTAL GROWTH; HEAT CAPACITY; PHASE TRANSITION;

D O I：

10.1016/0038-1098(94)00754-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Heat capacities of fragile liquid salol were measured with an adiabatic calorimeter. Two crystallization processes were observed separately in temperature; one in the range 218-225 K just above a glass transition region and the other above 227 K. Two crystals formed at 220 and 297 K gave the same X-ray diffraction patterns indicating that they were in the same crystalline phase. It was concluded that the process proceeding around 220 K was probably the homogeneous-nucleation-based crystallization as found out in o-terphenyl, and that the decrease in the interfacial energy between crystal embryo and liquid must have played an important role for the crystallization to be observed macroscopically.

引用

页码：713 / 717

页数：5

共 12 条

[1] RELAXATION IN LIQUIDS, POLYMERS AND PLASTIC CRYSTALS - STRONG FRAGILE PATTERNS AND PROBLEMS [J].