Preparation and crystal structures of Cu2HfS3

被引：1

作者：

Wada, H ^{[1
]}

Sato, A ^{[1
]}

Nozaki, H ^{[1
]}

机构：

[1] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 317卷

关键词：

copper hafnium sulfide; phase relation; crystal structure; phase transition; electrical resistivity;

D O I：

10.1016/S0925-8388(00)01330-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The phase relations of the compound Cu2HfS3 have been studied by XRD and DSC methods. The following three types were found to exist in the temperature range from 500 to 1300 degreesC: (a) monoclinic alpha -Cu2HfS3 phase with a=12.271(3) Angstrom, b=11.162(3) Angstrom, c=6.429(2) Angstrom, beta =100.04(2)degrees below 650 degreesC, (b) monoclinic beta -Cu2HfS3 phase with a=9.611(2) Angstrom, b=6.444(1) Angstrom, c=7.127(3) Angstrom, beta =98.05(2)degrees in the temperature range of 650-780 degreesC, and (c) trigonal gamma -Cu2HfS3 phase with a=6.456 Angstrom and c=12.188 Angstrom above 787 degreesC. Structure determination of beta -Cu2HfS3 phase was attempted using the Rietveld method. Electrical resistivity measurements were carried out for the trigonal gamma -Cu2HfS3 phase. (C) 2001 Elsevier Science B.V. FLU rights reserved.

引用

页码：217 / 221

页数：5

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