LOW-TEMPERATURE PHASE-TRANSITION IN K2ZNCL4 AT 146-K

被引：8

作者：

TAKAI, S ^{[1
]}

ATAKE, T ^{[1
]}

GESI, K ^{[1
]}

机构：

[1] IWAKI MEISEI UNIV,COLL SCI & ENGN,DEPT MAT SCI,IWAKI,FUKUSHIMA 970,JAPAN

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1993年 / 54卷 / 02期

关键词：

K2ZNCL4; HEAT CAPACITY; PHASE TRANSITION AT 146-K; EFFECTS OF WATER;

D O I：

10.1016/0022-3697(93)90311-E

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The heat capacity of K2ZnCl4 has been measured between 10 and 300 K using an adiabatic calorimeter. The low temperature phase transition is strongly influenced by the small amount of water remaining in the crystals which were grown from an aqueous solution. A sharp heat capacity anomaly is observed at 146.24 K for the sample dried under vacuum above 100-degrees-C for 30 h, and the enthalpy and entropy of transition are 57.16 J mol-1 and 0.387 J K-1 mol-1, respectively.

引用

页码：213 / 216

页数：4

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