以Co、Sb、Fe及Ce为起始原料,采用放电等离子烧结(SPS)技术原位反应合成了填充式Skutterudite化合物Cey Fe1.0 Co3.0 Sb12,并研究了该化合物的合成条件及热电性能.实验结果表明:当y为0～0.30时,用放电等离子烧结法在573 K开始生成Cey Fe1.0 Co3.0 Sb12且在673～873 K时,Cey Fe1.0 Co3.0 Sb12化合物为主晶相,并伴有极少量的FeSb2和Sb相.晶格常数和Seebeck系数随Ce填充分数的增加而呈线性增加,电导率和热导率随Ce填充分数的增加而降低.Cey Fe1.0 Co3.0 Sb12化合物表现为P型传导,Cey Fe1.0 Co3.0 Sb12化合物中Ce的填充分数y为0.30时,Ce0.30 Fe1.0 Co3.0 Sb12化合物具有较高的热电性能,其中在773 K时具有最大的热电优值(ZT值)0.45.
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