SYNTHESIS OF BINARY COPPER CHALCOGENIDES BY ALLOYING MECHANICAL

被引：103

作者：

OHTANI, T

MOTOKI, M

KOH, K

OHSHIMA, K

机构：

[1] Laboratory for Solid State Chemistry, Okayama University of Science, Okayama, 700

来源：

MATERIALS RESEARCH BULLETIN | 1995年 / 30卷 / 12期

关键词：

COPPER; SULFUR; SELENIUM; TELLURIUM;

D O I：

10.1016/0025-5408(95)00155-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Copper sulfides (tetragonal Cu1.92S-Cu1.99S, rhombohedral Cu1.71S-Cu1.89S, CuS), selenides (beta Cu2-xSe, Cu3Se2, gamma CuSe, CuSe2), and tellurides (Cu2-xTe, Cu3Te2) were prepared from mixtures of the elements by mechanical alloying (MA), using a high-energy ball mill. The compounds were obtained by 60-120 min of MA. It is notable that two metastable high-pressure phases were obtained by MA: tetragonal Cu2-xS and pyrite-type CuSe2. The tetragonal phase gradually transformed to the stable phase of djurleite when kept at room temperature. Cu1.71S-Cu1.89S also formed a metastable rhombohedral phase.

引用

页码：1495 / 1504

页数：10

共 25 条

[1] TUNGSTEN SOLUTION KINETICS AND AMORPHIZATION OF NICKEL IN MECHANICALLY ALLOYED NI-W ALLOYS [J].