Thermodynamic Calculation and Analysis of CuO in Ag/CuO Composites Prepared by In-situ Synthesis

Zheng Zhong; Zhou Xiaolong; Zhou Yunhong; Zhang Hao; Tao Qiying

doi:10.15980/j.tzzz.2016.05.031

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Thermodynamic Calculation and Analysis of CuO in Ag/CuO Composites Prepared by In-situ Synthesis
Vol. 36, Issue 5, Pages: 556-560(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.05.031

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[1]郑忠,周晓龙,周允红,张浩,陶麒鹦.原位反应合成Ag/CuO中氧化铜的热力学计算与分析[J].特种铸造及有色合金,2016,36(05):556-560.

Zheng Zhong, Zhou Xiaolong, Zhou Yunhong, et al. Thermodynamic Calculation and Analysis of CuO in Ag/CuO Composites Prepared by In-situ Synthesis. [J]. Special Casting & Nonferrous Alloys 36(5):556-560(2016)
[1]郑忠,周晓龙,周允红,张浩,陶麒鹦.原位反应合成Ag/CuO中氧化铜的热力学计算与分析[J].特种铸造及有色合金,2016,36(05):556-560. DOI： 10.15980/j.tzzz.2016.05.031.

Zheng Zhong, Zhou Xiaolong, Zhou Yunhong, et al. Thermodynamic Calculation and Analysis of CuO in Ag/CuO Composites Prepared by In-situ Synthesis. [J]. Special Casting & Nonferrous Alloys 36(5):556-560(2016) DOI： 10.15980/j.tzzz.2016.05.031.

摘要

对原位反应合成法制备Ag/CuO复合材料中

与CuO有关的反应进行了热力学计算

并绘制了Gibbs自由能与温度关系图。结果表明

原位反应合成法制备Ag/CuO复合材料中

生成立方CuO有3种方式:一是Cu与O

直接反应合成立方CuO;二是烧结反应过程中生成部分的Cu

O与O

反应合成立方CuO;三是Cu与O

反应合成单斜CuO后

在烧结时发生相转变得到立方CuO

并得出了这3种方式的合成立方CuO的温度

同时还对原位反应合成过程中的氧分压影响进行计算与分析。此外还通过对CuO与Ag/CuO反应烧结试验后的的XRD图分析

进一步验证了热力学计算的结论。

Abstract

Thermodynamic of CuO by the in-situ reaction synthesis in Ag/CuO composites was calculated

and the diagram of the Gibbs free energy and temperature was drawn.The results show that there are three ways generating cubic copper oxide:firstly

cubic CuO is synthesized directly by Cu and O

;secondly

cubic CuO is synthesized by O

and Cu

O which is generated by the process of sintering reaction section;three

cubic CuO is generated by phase transition in sintering after monoclinic CuO is synthesized by Cu and O

.And the synthetic temperature of the three modes was presented.Moreover

the oxygen partial pressure of in-situ synthesis was calculated and analyzed.The XRD diagrams of CuO and Ag/CuO reaction after sintering test was also analyzed.The conclusion of the thermodynamic calculation was further verified.