Electric and mechanical performances of Bi0.5Sb1.5Te3 prepared by spark plasma sintering

稀有金属（英文版）, 2006, 25(z2): 227-231.

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1.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

2.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

3.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

4.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

5.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

6.Energy Materials and Technology Research Institute, General Research Institute for Non-ferrous Metals, Beijing 100088, China

7.Tianjin Institute of Power Sources, Tianjin 300381, China

Electric and mechanical performances of Bi0.5Sb1.5Te3 prepared by spark plasma sintering

Keywords： thermoelectric material

Thermoelectric (TE) materials are a kind of functional materials which can be used to convert directly heat energy to electricity or reversely.The thermoelectric effects hold great potential for application in power generation and refrigeration.Bi2Te3 and its alloys are well known as best TE materials currently available near room temperature.This paper studies respectively the effects of spark plasma sintering (SPS) on electric performance of Bi0.5Sb1.5Te3 thermoelectric materials that are prepared through vacuum melting and ball milling.Through X-ray Diffraction and cold field emission scanning electric microscope s4800, the phase constituent and microstructure of the TE materials samples were analyzed.Electric conductivity and power factor can be improved with the rise of Spark Plasma Sintering temperature (from 300 to 500 ℃) and pressure(from 30 to 60 MPa), and the density and mechanical strength of Bi0.5Sb1.5Te3 thermoelectric material increase, too.

参考文献

[1]	Rowe D R.Handbook of Thermoelectric[M].Boca Raton,FL:CRC Press,1995:597.
[2]	Tentsch W H.[M].New York:John wiley and Sons Inc,1985
[3]	Rowe D M;Bhandarl C M.Modern Thermoelectricity[M].Holt Saunders London,1983:3.
[4]	Guff K F;Horst R B;Weaver J L et al.The thermoelectric figure of merit and ettingshausen cooling in Bi-Sb alloys[J].Appl Phys Lettm,1963,2:145.
[5]	Ettenberg MH.;Taylor PJ.;Jesser WA.;Rosi FD.;Maddux JR. .IMPROVING YIELD AND PERFORMANCE IN PSEUDO-TERNARY THERMOELECTRIC ALLOYS (BI2TE3)(SB2TE3)(SB2SE3)[J].Journal of Crystal Growth,1997(3/4):495-502.
[6]	Zemskov VS.;Beluy US.;Kozhemyakin GN.;Belaya AD. .Growth and investigation of thermoelectric properties of Bi-Sb alloy single crystals[J].Journal of Crystal Growth,2000(1/2):161-166.
[7]	Sokolov OB.;Skipidarov SY.;Duvankov NI. .The variation of the equilibrium of chemical reactions in the process of (Bi2Te3)(Sb2Te3)(Sb2Se3) crystal growth[J].Journal of Crystal Growth,2002(1/3):181-190.
[8]	Kim HC.;Hyun DB.;Oh TS. .Thermoelectric properties of the p-type Bi2Te3-Sb2Te3-Sb2Se3 alloys fabricated by mechanical alloying and hot pressing[J].The journal of physics and chemistry of solids,2000(5):743-749.
[9]	Seo J et al.[J].Journal of Physics and Chemistry of Solids,2000,61:1687.
[10]	Hoog Soon-Jik;Chun Byong-Sun .[J].Materials Research Bulletin,2003,38:599.
[11]	Kohri Hitoshi;Dauphin Xavier;Isao Kazuhiro.Control of grain size and crystal orientation for Bi-Sb-Te compounds[A].北京,2001:121.
[12]	Hong S J;Chun B S .[J].Materials Research Bulletin,2003,38:599.

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Electric and mechanical performances of Bi0.5Sb1.5Te3 prepared by spark plasma sintering

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