Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
Feature: Frontiers in Ceramic Research Based on Materials Science of Crystal Defect Cores: Full papers
Spark plasma sintering on the thermoelectric sulfide Ta2PdS6
Akitoshi NakanoKoichiro SuekuniNanako HattoriIchiro Terasaki
ジャーナル フリー

2023 年 131 巻 10 号 p. 669-674


We have prepared a dense ceramic sample of a novel thermoelectric sulfide Ta2PdS6 by means of spark plasma sintering technique under a uniaxial pressure. The Rietveld analyses of the X-ray diffraction patterns have clarified occurrence of weak preferred orientation in the sintering process. Resistivity, thermopower, and Hall resistivity measurements on the ceramic sample have indicated that it shows higher carrier density and lower carrier mobility than a single crystal. The inferior carrier mobility in the ceramic sample may partly come from increased point-defect and/or grain-boundary scattering, to which poor power factor is attributed.

© 2023 The Ceramic Society of Japan

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