Thermal Conductivity of Bi0.5Sb1.5Te3Affected by Grain Size and Pores
β Scribed by Takashi Hamachiyo; Maki Ashida; Kazuhiro Hasezaki
- Publisher
- Springer US
- Year
- 2009
- Tongue
- English
- Weight
- 296 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0361-5235
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## Abstract A hotβpress deformation study of Bi~0.5~Sb~1.5~Te~3~ was undertaken to obtain polycrystals with a preferred textural orientation for use in thermoelectric applications. Source materials were prepared by mechanical alloying (MA) as well as hot pressing (HP) and they were deformed at 673β
In this paper, pseudo-binary (Ag 0.365 Sb 0.558 Te) x -(Bi 0.5 Sb 1.5 Te 3 ) 1Γx (x ΒΌ 0-1.0) alloys were prepared using spark plasma sintering technique, and the composition-dependent thermoelectric properties were evaluated. Electrical conductivities range from 7.9 Γ 10 4 to 15.6 Γ 10 4 O Γ1 m Γ1 a