BEHAVIOR OF COPPER CHALCOGENIDES DURING VACUUM-THERMAL PROCESSING

被引：0

作者：

Nitsenko, A. ^{[1
]}

Volodin, V. ^{[1
]}

Linnik, X. ^{[1
]}

Burabaeva, N. ^{[1
]}

Tuleutay, F. ^{[1
]}

机构：

[1] Satbayev Univ, Inst Met & Ore Beneficiat JSC, Alma Ata, Kazakhstan

来源：

METALURGIJA | 2023年 / 62卷 / 01期

关键词：

opper chalcogenides; vacuum; thermal processing; dissociation; vapor pressure; TELLURIUM;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this work, thermodynamic functions of evaporation of copper chalcogenides (Cu2S, Cu2Se, and Cu2Te) are determined via previously published data and thermodynamic values obtained by the authors of the work. The obtained results indicate a very low probability of separation of compounds into copper and chalcogen by dissociation under vacuum-thermal processing conditions. Liquid-vapor phase transitions in binary systems Cu2S - Cu2Se, Cu2S - Cu2Te, and Cu2Se - Cu2Te at low pressures of 15 and 0,7 kPa are constructed based on the vapor pressure of copper chalcogenides. It is shown that the pressure eases over the liquid bath impairs the separation of chalcogens, therefore separation in one stage by thermo-vacuum treatment at a pressure of 0,7 - 15 kPa is not possible.

引用

页码：125 / 128

页数：4

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