Self-Propagating High-Temperature Synthesis of Cu–Mn–Al Alloys: Thermoelectric and Magnetic Properties

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发表日期：

2024年9月6日

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A. O. Sivakova,
A. V. Karpov,
M. L. Busurina,
P. A. Lazarev,
G. A. Sytschev,
Yu. G. Morozov,
A. E. Sytschev

摘要

Abstract

The fabrication of ternary Cu–Mn–Al alloys through self-propagating high-temperature synthesis and their thermoelectric properties, such as electrical resistivity and the Seebeck coefficient in a wide range of temperatures, were studied. XRD analysis identified the Heusler compound Cu₂MnAl in the synthesized compositions as a main precipitated phase. In addition, different secondary phases (Al₂Cu, Cu₃Al AlCu, and Mn) appear depending on an excess of aluminum or manganese in the green mixture. The magnetization (M–H) curves constructed for the studied alloys showed their weakly ferromagnetic behavior.