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Nd_xCo₄Sb₁₂化合物的快速合成及其热电性能研究

Rapid Preparation and Thermoelectric Properties of Nd_xCo₄Sb₁₂ Compounds

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【Author】 Zhang Jiuxing~, Liu Kegao, Lu Qingmei, Zhang Long, Zhou Meiling, Zuo Tieyong (The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China)

【机构】北京工业大学新型功能材料教育部重点实验室；北京工业大学新型功能材料教育部重点实验室北京100022；北京100022；北京100022；

【摘要】采用机械合金化和放电等离子烧结 (MA SPS)技术成功合成了NdxCo4 Sb1 2 化合物热电材料。借助于先进的结构和性能表征手段 ,系统研究了NdxCo4 Sb1 2 化合物成相和热电性能。实验结果表明 ,NdxCo4 Sb1 2 化合物中稀土Nd的最佳添加量为x =1.0。Nd1 .0 Co4 Sb1 2 化合物具有较高的热电性能 ,其中在 40 0℃时具有最大ZT值 0 .2 65。更多还原

【Abstract】 Nd_xCo₄Sb₁₂ compounds thermoelectric materials were rapidly prepared successfully by mechanical alloying and spark plasma sintering （MA-SPS） and their phases and thermoelectric properties were systematically investigated by advanced testing instruments. Experimental results show that the best Nd dopant content of Nd_xCo₄Sb₁₂ compounds is x=1.0 and Nd_1.0Co₄Sb₁₂ compound has high thermoelectric properties with the highest ZT value 0.265 achieved at 400 ℃.更多还原