Synthesis and Thermoelectric Properties of Filled Skutterudite by a Solid Reaction Method.
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- Chen Lidong
- Institute for Materials Research, Tohoku University
Bibliographic Information
- Other Title
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- 固相反応法による充填スクッテルダイトの合成と熱電特性
- カイセツ コソウ ハンノウホウ ニ ヨル ジュウテン スクッテルダイト ノ ゴウセイ ト ネツデントクセイ
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Abstract
The filled skutterudite compounds, MyFexCo4-xSb12 (x=0-1.0, y=0-0.15, M=Ce, La, Y), were prepared by a new solid state reaction method using Co, Fe, Sb, CeCl3.6H2O, LaCl3.6H2O and YCl3.6H2O powders, and their thermoelectric properties were investigated. MyFexCo4-xSb12 (x=0-1.0, y=0-0.15, M=Ce, La, Y) compounds showed p-type conduction. The electrical conductiviy (σ) increased with increasing Fe content. The Seebeck coefficient (α) increased with increasing Fe content for MFexCo4-xSb12, but decreased with increasing Fe content for FexCo4-x, Sb12. The Lattice thermal conductivity (KL) decreased significantly with the substitution of Fe for Co and the filling of M (M=Ce, La, Y) into the Sb icosahedral voids, while the carrier thermal conductivity (Kcar) was not much affected by the Fe substitution and the M (Ce, La, Y) filling. The thermoelectric figure of merit was improved by the combinatior of Fe substitution and M (Ce, La, Y) filling.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 46 (9), 921-926, 1999
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390001206307501184
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- NII Article ID
- 10005741158
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 4857610
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed