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。
Nd_xCo_4Sb_(12) 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_xCo_4Sb_(12) compounds is x=1.0 and Nd_(1.0)Co_4Sb_(12) compound has high thermoelectric properties with the highest ZT value 0.265 achieved at 400 ℃.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2004年第3期341-344,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金 ( 5 0 2 710 0 1)
北京市教委科技发展重点项目 (KZ2 0 0 3 10 0 0 5 0 0 1)资助项目
关键词
热电化合物
ND
机械合金化
放电等离子烧结
稀土
thermoelectric compounds
Nd
mechannical alloying
spark plasma sintering
rare earths
