Thermoelectric properties of spark plasma sintered composites based on TiNiSn half-Heusler alloys

被引：72

作者：

Gelbstein, Yaniv ^{[1
]}

Tal, Nadav ^{[1
]}

Yarmek, Aviad ^{[1
]}

Rosenberg, Yoav ^{[1
]}

Dariel, Moshe P. ^{[1
]}

Ouardi, Siham ^{[2
]}

Balke, Benjamin ^{[2
]}

Felser, Claudia ^{[2
]}

Koehne, Martin ^{[3
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

[2] Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, Mainz, Germany

[3] Robert Bosch GmbH, D-70049 Stuttgart, Germany

来源：

JOURNAL OF MATERIALS RESEARCH | 2011年 / 26卷 / 15期

关键词：

TI; TEMPERATURE; PERFORMANCE;

D O I：

10.1557/jmr.2011.107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Half-Heusler (HH) and especially TiNiSn-based alloys have shown high potential as thermoelectric (TE) materials for power generation applications. The reported transport properties show, however, a significant spread of results, due mainly to the difficulty in fabricating single-phase HH samples in these multicomponent and multiphased systems. In particular, little attention has been paid to the influence of the various minority phases on the TE performance of these compounds. A clear understanding of these issues is mandatory for the design of improved and stable TE HH-based composites. This study examines the structural and compositional influence of the residual metallic (Sn) and intermetallic phases (mainly Ti6Sn5 and the Heusler compound TiNi2Sn) on the TE properties of the TiNiSn HH compounds processed by spark plasma sintering.

引用

页码：1919 / 1924

页数：6

共 19 条

[1]

BALKE B, 2008, PHYS REV B, V77

[2] (Zr,Hf)Co(Sb,Sn) half-Heusler phases as high-temperature (>700 °C) p-type thermoelectric materials [J].