Journal
MATERIALS LETTERS
Volume 58, Issue 15, Pages 2132-2136Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2003.12.034
Keywords
direct syntheses; thermoelectric; hot pressing; powder technology; intermetallic compound and alloys; phase transformation; Zn4Sb3
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Direct synthesis by hot pressing has been used in order to produce high-efficiency Zn(4)Sb(3)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. (C) 2004 Elsevier B.V. All rights reserved.
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