Thermoelectric properties of Zn4Sb3 directly synthesized by hot pressing

Direct synthesis by hot pressing has been used in order to produce high-efficiency Zn4Sb3 bulk specimens. Single-phase Zn4Sb3 with 98.5% of theoretical density were successfully produced by direct hot pressing of elemental powders containing 1.2 at.% excess Zn. Thermoelectric properties as a functio...

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Bibliographic Details
Published in:Materials letters 2004-06, Vol.58 (15), p.2132-2136
Main Authors: Ur, Soon-Chul, Kim, Il-Ho, Nash, Philip
Format: Article
Language:English
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Summary:Direct synthesis by hot pressing has been used in order to produce high-efficiency Zn4Sb3 bulk specimens. Single-phase Zn4Sb3 with 98.5% of theoretical density were successfully produced by direct hot pressing of elemental powders containing 1.2 at.% excess Zn. Thermoelectric properties as a function of temperature were investigated from room temperature to 600 K and compared with results of other studies. Transport properties at room temperature were also evaluated. Thermoelectric properties of single-phase Zn4Sb3 materials produced by direct synthesis were measured and are comparable to the published data. Direct synthesis by hot pressing provides an optional processing route in this material.
ISSN:0167-577X
DOI:10.1016/j.matlet.2003.12.034