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压力对稀土元素Sm填充方钴矿化合物热电性能的影响
引用本文:姜一平,贾晓鹏,马红安,邓乐,郑世钊.压力对稀土元素Sm填充方钴矿化合物热电性能的影响[J].北华大学学报(自然科学版),2011,12(5):539-542.
作者姓名:姜一平  贾晓鹏  马红安  邓乐  郑世钊
作者单位:1. 北华大学物理学院,吉林吉林,132033
2. 吉林大学超硬材料国家重点实验室,吉林长春,130012
摘    要:通过高温高压方法合成出稀土元素Sm填充n型方钴矿化合物SmxCo4Sb12(0〈x〈1),并考察了在室温下Sm填充率对热电性能的影响规律.结果表明:SmxCo4Sb12化合物表现为n型传导;电阻率和Seebeck系数随着合成压力的增加逐渐增加;晶格热导率随着Sm填充分数的增加而降低,在Sm填充量为0.5时达到最小值.室...

关 键 词:Sm  n型方钴矿  高温高压  热电性能

Effect of Pressure on the Thermoelectric Properties of Sm-filled Skutterudite
JIANG Yi-ping,JIA Xiao-peng,MA Hong-an,DENG Le,ZHENG Shi-zhao.Effect of Pressure on the Thermoelectric Properties of Sm-filled Skutterudite[J].Journal of Beihua University(Natural Science),2011,12(5):539-542.
Authors:JIANG Yi-ping  JIA Xiao-peng  MA Hong-an  DENG Le  ZHENG Shi-zhao
Institution:JIANG Yi-ping1,JIA Xiao-peng2,MA Hong-an2,DENG Le2,ZHENG Shi-zhao2(1.Physics College of Beihua University,Jilin 132033,China,2.State Key Lab for Superhard Materials of Jilin University,Changchun 130012,China)
Abstract:Sm-filled skutterudite compounds SmxCo4Sb12(0〈x〈1) were successfully synthesized via high-pressure and high-temperature(HPHT) method.The effect of Sm filling rate on thermoelectric properties was investigated at room temperature.Results indicated that electrical resistivity and the absolute value of Seebeck coefficient increased with increasing pressure.The lattice thermal conductivity decreased dramatically and reached the minimum value when the Sm filling fraction was 0.5.A maximum ZT value of 0.16 is obtained for Sm0.5Co4Sb12 at room temperature.
Keywords:Sm  n-type Skutterudite  HPHT  thermoelectric properties
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