Experimental investigation and thermodynamic modeling of the Mg-Si-Zn system期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Experimental investigation and thermodynamic modeling of the Mg-Si-Zn system

Authors:	Man WangPeisheng Wang Shuhong Liu Yong Du Honghui Xu Wenqing Zhang

Affiliation:	^a State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan 410083, PR China ^b Science Center for Phase Diagram & Materials Design and Manufacture, Central South University, Changsha, Hunan 410083, PR China ^c State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China

Abstract:	The isothermal section at 327 °C for the Mg-Si-Zn system has been determined by means of X-ray diffraction (XRD) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). No ternary compound has been observed in this work. Five three-phase regions, (Zn)+(Si)+Mg₂Zn₁₁, Mg₂Zn₁₁+MgZn₂+Mg₂Si, Mg₂Zn₃+MgZn₂+Mg₂Si, Mg₅₁Zn₂₀+MgZn+Mg₂Si, and Mg₅₁Zn₂₀+Mg₂Si+(Mg), have been determined. No appreciable ternary solubility has been detected. An optimal set of thermodynamic parameters for the Mg-Si-Zn system has been obtained by considering the experimental data from both the present work and the literature. The agreement between calculation and experiment is reasonable.

Keywords:	Mg-Si-Zn system Isothermal section Thermodynamic modeling XRD SEM/EDX
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