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Study of Phase equilibria in the Cu-Co-Zn ternary system
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Affiliation:

College of Materials. Xiamen University

Clc Number:

TG111.3

Fund Project:

National Natural Science Foundation of China;Joint Fund to Promote Cross-Strait Scientific and Technological Cooperation

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    Abstract:

    The phase equilibria of the Cu-Co-Zn ternary system at 800°C and 1000°C were investigated by means of electron probe microanalysis and X-ray diffraction. No ternary compound was found. At 800°C, the solubility of Co in the β-CuZn, and Cu in the β1-CoZn at 800°C were 32.36 at.% and 5.28 at.%, respectively. The γ-Co5Zn21 and γ-Cu5Zn8 showed the same crystal structure, an infinite region of mutual solubility was observed in the Cu-Co-Zn ternary system. It was confirmed that as the temperature rises from 800°C to 1000°C, the liquid-phase region was further expanded. The isothermal section of 1000oC was simple. The phase of β-CuZn, β1-CoZn, γ-Co5Zn21 and γ-Cu5Zn8 was disappeared. The region of liquid phase is very large.

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[wangcuiping, wuchao, dengyuling, zhangjinbin, yangmujin, yangshuiyuan, hanjiajia, luyong, liuxingjun. Study of Phase equilibria in the Cu-Co-Zn ternary system[J]. Rare Metal Materials and Engineering,2020,49(7):2269~2274.]
DOI:10.12442/j. issn.1002-185X.20190296

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History
  • Received:April 07,2019
  • Revised:April 30,2019
  • Adopted:May 15,2019
  • Online: August 31,2020
  • Published: