SOLID STAE REACTION SYNTHESIS OF SKUTTERUDITE COMPOUNDS FexCo4-xSb12 AND THERMOELECTRIC PROPERTIES

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 2000Publisher:Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of SciencesJournal:Acta Physica Sinica, volume 49, page 1,120 (issn: 1000-3290, eissn: 1000-3290,

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Authors: null TANG XIN-FENG; null CHEN LI-DONG; null GOTO TAKASHI; null HIRAI TOSHIO; null YUAN RUN-ZHANG;

doi: 10.7498/aps.49.1120

SOLID STAE REACTION SYNTHESIS OF SKUTTERUDITE COMPOUNDS FexCo4-xSb12 AND THERMOELECTRIC PROPERTIES

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Abstract

Skutterudite compounds FexCo4-xSb12 were synthesizedby solid state reaction using high-purity powders of Co,Fe,and Sb as starting materials.FexCo4-xSb12(x＝0—10) compounds were obtained at 900—1000K.The lattice constant of FexCo4-xSb12 increased with increasing substitution of Fe for Co sites.Carrier concentration and electrical conductivity increased with increasing Fe content.Seebeck coefficient decreased and Topt of Seebeck coefficient shifted to higher temperature with increasing Fe content.Lattice conductivity was reduced significantly by substitution of Fe for Co sites.The maximum ZT value of 05 was obtained for Fe0.92Co3.08Sb12 at 750K.

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Wuhan Polytechnic University
China (People's Republic of)
Wuhan University of Technology
China (People's Republic of)

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