Pressure and Time Dependences of the Supercooled Liquid-to-Liquid Transition in Sulfur

被引：0

作者：

张豆豆 ^{[1
]}

刘秀茹 ^{[1
]}

何竹 ^{[1
]}

洪时明 ^{[1
]}

机构：

[1] School of Physical Science and Technology,Key Laboratory of Advanced Technologies of Materials(Ministry of Education),Southwest Jiaotong University

来源：

Chinese Physics Letters | 2016年 / 02期

基金：

中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;

关键词：

of; on; it; Pressure and Time Dependences of the Supercooled Liquid-to-Liquid Transition in Sulfur; in; that; for; is;

D O I：

暂无

中图分类号：

TQ171.1 [基础理论];

学科分类号：

0805 ; 080502 ;

摘要：

Thermal behavior of bulk amorphous sulfur is investigated by in situ temperature measurements at high pressures of 0.9,1.4 and 2.1 GPa,and under different heating rates of 8,10 and 12K/min at 0.9 GPa.The results show that the onset temperature of the transition from the supercooled liquid to the liquid state for sulfur increases with the pressure and the heating rate.It is deduced that the transition does not follow the Clapeyron equation,indicating considerable coupling of the molecular structure change in the transition.Along with the data at ambient pressure and high pressure,we present a dynamic diagram to demonstrate the relationship between the amorphous solid,supercooled liquid,liquid,and crystal phases of sulfur,and suggest an experimental approach to establish pressure-temperature-time transition diagrams for supercooled liquid and liquid.

引用

页码：87 / 90

页数：4