Improvement in Thermoelectric Characteristics of n‐type Iron Disilicide by Local Composition Modification

• Takeo Tokiai

• Takashi Uesugi

• Kunihito Koumoto

抄録

High thermoelectric figure of merit semiconducting ceramics of n ‐type iron disilicide with modified local compositions have been developed. Sintering and annealing of the composite powder composed of iron disilicide and precipitated cobalt (II) hydroxide resulted in the dissolution of excess Co and oxygen into the iron disilicide phase. Excess Co segregated to the grain boundary region, while interstitially incorporated oxygen was distributed homogeneously in the microstructure. The maximum figure of merit achieved was 5.2 × 10 −4 /K at 673 K.

収録刊行物

• Journal of the American Ceramic Society

  Journal of the American Ceramic Society 78 (4), 1089-1092, 1995-04

  Wiley

キーワード

• Materials Chemistry
• Ceramics and Composites

詳細情報

• CRID: 1363670318987407616
• NII論文ID: 30015556823
• DOI: 10.1111/j.1151-2916.1995.tb08444.x
• ISSN: 15512916
• ISSN: 00027820
• Web Site: https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1151-2916.1995.tb08444.x
• Web Site: http://onlinelibrary.wiley.com/wol1/doi/10.1111/j.1151-2916.1995.tb08444.x/fullpdf
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