Synthesis and Thermoelectric Properties of Half-Heusler Zr-Ni-Sn Alloy Processed by Mechanically Alloying and Hot Pressing

Il Ho Kim; Joon Chul Kwon; Young Geun Lee; Man Soon Yoon; Sung Lim Ryu; Whan Gi Kim; Soon Chul Ur

doi:10.4028/www.scientific.net/MSF.658.33

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HomeMaterials Science ForumMaterials Science Forum Vol. 658Synthesis and Thermoelectric Properties of...

Synthesis and Thermoelectric Properties of Half-Heusler Zr-Ni-Sn Alloy Processed by Mechanically Alloying and Hot Pressing

Abstract:

Recent search for novel thermoelectric materials has revealed a new class of compounds with half-Heusler structure as good candidates for higher performance thermoelectric conversion [1-2], since the structure was first found [3]. The unit cell of the half-Heusler with a space group F4¯ 3m consists of 4 interpenetrating cubic lattices. The crystallographic sites (0,0,0) and (1/4, 1/4, 1/4) are occupied by two different transition metals, the (1/2, 1/2, 1/2) site is occupied by Sn, Sb, or Bi, and the site (3/4, 3/4, 3/4) is empty [4,5]. Candidates with this structure for the investigation would be categorized into the combination of (Ti/Zr/Hf)(Co/Ni/Pt)(Sb/Sn/Bi) [4-6].

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Materials Science Forum (Volume 658)

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33-36

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.658.33

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Online since:

July 2010

Authors:

Il Ho Kim, Joon Chul Kwon, Young Geun Lee, Man Soon Yoon, Sung Lim Ryu, Whan Gi Kim, Soon Chul Ur

Keywords:

Half-Heusler, Mechanical Alloying (MA), Thermoelectric

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