Solid state reaction synthesis of filled skutterudite compounds (Ce or Y)yFexCo4-xSb12 and the effect of filling atoms Ce or Y on lattice thermal conductivity

Xinfeng Tang, Lidong Chen, Goto Takashi, Hirai Toshio, Runzhang Yuan

研究成果: Article査読

18 被引用数 (Scopus)

抄録

The synthesis of filled skutterudite compounds (Ce or Y)yFexCo4-xSb12, through a solid state reaction using chloride of Ce or Y, high purity powder of Co, Fe, and Sb as starting materials, was investigated. (Ce or Y)yFexCo4-xSb12 (x = 0-1.0, y = 0-0.15) compounds were obtained at 850-1123 K. The results of Rietveld analysis demonstrate that (Ce or Y)yFexCo4-xSb12 synthesized by a solid state reaction possesses a filled skutterudite structure. The filling fraction of Ce or Y obtained by Rietveld analysis agrees well with the composition obtained by chemical analysis. The lattice constant of CeyFexCo4-xSb12 increases with increasing substitution of Fe at Co sites, and with an increasing Ce filling fraction in the Sb-dodecahedron voids. The lattice thermal conductivity of (Ce or Y)yFexCo4-xSb12 decreases significantly with an increasing Ce or Y filling fraction in the voids and with substitution of Fe at Co sites.

本文言語English
ページ(範囲)306-312
ページ数7
ジャーナルScience in China, Series B: Chemistry
43
3
DOI
出版ステータスPublished - 2000 6

ASJC Scopus subject areas

  • 化学 (全般)

フィンガープリント

「Solid state reaction synthesis of filled skutterudite compounds (Ce or Y)<sub>y</sub>Fe<sub>x</sub>Co<sub>4-x</sub>Sb<sub>12</sub> and the effect of filling atoms Ce or Y on lattice thermal conductivity」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル