Synthesis and Thermal Properties of Nanoscale Skutterudite via Cross-Coprecipitation

Ying Chu; Xinfeng Tang; Ling WanQingjie Zhang

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Synthesis and Thermal Properties of Nanoscale Skutterudite via Cross-Coprecipitation

机译：Synthesis and Thermal Properties of Nanoscale Skutterudite via Cross-Coprecipitation

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CoSb_3 with nanoscale was synthesized by Cross-coprecipitation. A precursor consisting of antimony oxide and cobalt hydrate was prepared by the reaction of CoCl_2, SbCl_3 and both precipitators at room temperature. The precursor was reduced in thermal treatment under hydrogen atmosphere whereby the CoSb_3 was thus obtained. The parameters especially reducing temperature and atmosphere (content of H_2) influence the constituent phases and particle size of product significantly. The single phase CoSb_3 with the average grain size of 60～70 nm was obtained after reduced at 723 K for 2 h with pure H_2. Nanoscale CoSb_3 powder was used as starting materials, and bulk CoSb_3 compound was prepared by spark plasma sintering (SPS). The effect of grains size on thermal conductivity was investigated.

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来源
《Key engineering materials》 |2007年第1期|831-833|共3页
作者
Ying Chu; Xinfeng Tang; Ling WanQingjie Zhang;
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作者单位

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
cross-coprecipitation; nanoscale skutterudite; thermal properties;

Synthesis and Thermal Properties of Nanoscale Skutterudite via Cross-Coprecipitation

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