Nanosized precipitates in half-Heusler TiNiSn alloy - art. no. 033114

[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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