| Effect of Ba Filling Fraction on Thermoelectric Properties of p-type Ba_yFe_(1.6)Co_(2.4)Sb_(12) |
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| 引用本文： | 唐新峰. Effect of Ba Filling Fraction on Thermoelectric Properties of p-type Ba_yFe_(1.6)Co_(2.4)Sb_(12)[J]. 武汉理工大学学报(材料科学英文版), 2002, 17(3) |
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| 作者姓名： | 唐新峰 |
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| 作者单位： | TANG Xin feng 1) CHEN Li dong 2) ZHANG Lian meng 1) Takashi GOTO 3) Toshio HIRAI 3) YUAN Run zhang 1) 1) Wuhan University of Technology 2) Shanghai Institute of Ceramics，Chinese Academy of Science |
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| 基金项目： | ThisworkwaspartiallysupportedbyaGrant in AidforEncouragementofYoungScientists (A) (No .12 75 0 5 91) Japan .ThisworkwasalsosupportedpartiallybytheResearchFoundationforMaterialsScience apan |
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| 摘 要： | 1 ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｅｌｅｃｔｒｉｃａｌｔｒａｎｓｐｏｒｔｐｒｏｐｅｒｔｉｅｓ (ｃｏｎｄｕｃｔｉｏｎｔｙｐｅ ,ｃａｒｒｉｅｒｃｏｎｃｅｎｔｒａｔｉｏｎ ,ｃａｒｒｉｅｒｍｏｂｉｌｉｔｙ ,ｃａｒｒｉｅｒｅｆｆｅｃｔｉｖｅｍａｓｓ)ａｎｄｔｈｅｔｈｅｒｍａｌｔｒａｎｓｐｏｒｔｐｒｏｐｅｒｔｉｅｓ (ａｔｏｍｄｉｓ ｐｌａｃｅｍｅｎｔｐａｒａｍｅｔｅｒ ,ｍｅａｎｆｒｅｅｐａｔｈｏｆｐｈｏｎｏｎ ,ｌａｔｔｉｃｅｔｈｅｒｍａｌｃｏｎｄｕｃｔｉｖｉｔｙ)ｏｆｆｉｌｌｅｄｓｋｕｔｔｅｒｕｄｉｔｅｃｏｍｐ…
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Effect of Ba Filling Fraction on Thermoelectric Properties of p-type BayFe1.6Co2.4Sb12 |
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| TANG Xin-feng,CHEN Li-dong,ZHANG Lian-meng,Takashi GOTO,Toshio HIRAI,YUAN Run-zhang. Effect of Ba Filling Fraction on Thermoelectric Properties of p-type BayFe1.6Co2.4Sb12[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2002, 17(3) |
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| Authors: | TANG Xin-feng CHEN Li-dong ZHANG Lian-meng Takashi GOTO Toshio HIRAI YUAN Run-zhang |
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| Abstract: | Effects of Ba filling fraction on the thermoelectric properties of p-type filled skutterudite compounds BayFe1.6Co2.4Sb12(y=0-0.63) were investigated.BayFe1.6Co2.4Sb12 showed p-type conduction.The hall coefficient (RH) and seebeck coefficient(α) increased with increasing Ba filling fraction.But hole concentration (p) and electrical conductivity (σ) decreased.While Ba filling fraction was about 0.4,the lattice thermal conductivity (κL) reached the minimum value.The results show that effect of Ba rattling on phonon scattering is the strongest as Sb-icosahedron partial voids are filled by Ba.A maximum dimensionless thermoelectric figure of merit (ZT) value of 0.7 was obtained for Ba0.38Fe1.6Co2.4 Sb12 at 750K. |
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| Keywords: | filled skutterudite compound filling fraction thermoelectric properties |
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