Nanosized precipitates in half-Heusler TiNiSn alloy

被引：56

作者：

Chai, Yaw Wang ^{[1
]}

Kimura, Yoshisato ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Mat Sci & Engn, Interdisciplinary Grad Sch Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 03期

关键词：

THERMOELECTRIC PROPERTIES; PHASES; ZRNISN;

D O I：

10.1063/1.3679377

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The microstructure of half-Heusler TiNiSn alloy has been investigated in this study. A high density of coherent nanosized Heusler precipitates was found within the half-Heusler matrix. Formation of these Heusler precipitates occurs by a phase separation process, where a single phase solid solution (half-Heusler-Heusler) decomposes into an equilibrium two-phase mixture of half-Heusler and Heusler regions. These Heusler nanoprecipitates improve the thermoelectric properties of the alloy. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679377]

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页数：3

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