Process optimization of CuIn5 alloy prepared by sparking plasma sintering

doi:10.13251/j.issn.0254-6051.2022.07.013

Abstract

Abstract: Optimum parameters of spark plasma sintering (SPS) process of CuIn₅ alloy were determined by orthogonal experiment. The effect of sintering temperature, sintering time and sintering pressure on density, hardness and electrical conductivity of the CuIn₅ alloy was studied. The results show that the main factor affecting density and hardness of the CuIn₅ alloy is sintering temperature, followed by sintering pressure, and sintering time has the least effect; the main factors affecting the conductivity of the CuIn₅ alloy is sintering temperature, followed by sintering time and sintering pressure. The optimum process for preparing CuIn₅ alloy by SPS process consists of sintering temperature of 850 ℃, sintering time of 5 min and sintering pressure of 50 MPa. The microstructure of CuIn₅ alloy prepared by the best process is uniform and compact, In is dissolved in Cu to form a solid solution, the lattice constant is 0.362 865 nm, the lattice distortion is 0.38%, the density is 99.56%, the microhardness is 136.3 HV0.1, and the conductivity is 37.86%IACS.

Key words: spark plasma sintering, Cu-In alloy, sintering process, microstructure and properties

CLC Number:

TG146.23

Fan Shuaiqi, Li Haitao , Wang Xuesong, Zhang Leitao, Xu Jinfu, Dai Jiaoyan. Process optimization of CuIn₅ alloy prepared by sparking plasma sintering[J]. Heat Treatment of Metals, 2022, 47(7): 76-80.

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Process optimization of CuIn₅ alloy prepared by sparking plasma sintering

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