Ag-Bi-Te体系的相图热力学研究

doi:10.19976/j.cnki.43-1448/TF.2026024

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Abstract Thermodynamic modelling of the Ag-Bi-Te system has been carried out using the calculation of phase diagram (CALPHAD) method based on the available literature-reported experimental data. The liquid phase was described by the associated compound model (Ag,Ag₂Te,Bi,Bi₂Te₃,Te)₁ with Ag₂Te and Bi₂Te₃ associate species. The ternary compound AgBiTe₂ was treated as the stoichiometric compound (Ag)_0.25(Bi)_0.25(Te)_0.5. A set of consistent thermodynamic parameters for the Ag-Bi-Te system was obtained. Comparison of the calculated results with available experimental data suggests that the thermodynamic parameters obtained in this study can well describe the phase equilibrium and thermodynamic properties of the Ag-Bi-Te ternary system.

Key words： Ag-Bi-Te CALPHAD vertical section phase change material thermodynamic assessment

Received: 25 February 2026 Published: 12 November 2026

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	WEI Peng
	WANG Jiong
	CUI Dongyu
	ZHOU Jiaqiang

Cite this article:

WEI Peng,WANG Jiong,CUI Dongyu, et al. Thermodynamic investigation of the Ag-Bi-Te system[J]. Materials Science and Engineering of Powder Metallurgy, 2026, 31(5): 486-497.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2026024 OR http://pmbjb.csu.edu.cn/EN/Y2026/V31/I5/486

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