POLYMORPHISM OF AS2TE3 - STRUCTURAL STUDIES AND THERMAL-BEHAVIOR OF RHOMBOHEDRAL BETA-AS2TE3

被引：21

作者：

TOSCANI, S ^{[1
]}

DUGUE, J ^{[1
]}

OLLITRAULT, R ^{[1
]}

CEOLIN, R ^{[1
]}

机构：

[1] FAC PHARM TOURS,CHIM PHYS LAB,F-37042 TOURS,FRANCE

来源：

THERMOCHIMICA ACTA | 1991年 / 186卷 / 02期

关键词：

D O I：

10.1016/0040-6031(91)87040-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The polymorphic behavior of As2Te3 was investigated by differential scanning calorimetry. The irreversible transition enthalpy of rhombohedral beta-As2Te3 into monoclinic alpha-As2Te3 was measured (DELTA-beta --> alpha-H = - 9.6 +/- 0.4 J g-1, T-beta --> alpha = 513 K). The beta-As2Te3 is isostructural with Sb2Te3. Using the Clapeyron equation, it can be shown that the rhombohedral form is probably identical with the previously detected high pressure form.

引用

页码：247 / 251

页数：5

共 8 条

[1] REFINEMENT OF SB2TE3 AND SB2TE2SE STRUCTURES AND THEIR RELATIONSHIP TO NONSTOICHIOMETRIC SB2TE3-YSEY COMPOUNDS [J].