Work

Thermoelectric Properties of Bismuth Telluride Based Materials Prepared by Powder Metallurgy Processing

Year: 2007

Type: article

Abstract: Polycrystalline samples of Bi2Te3 based alloys were prepared by powder metallurgy processing including a melting-grinding and a sintering procedure of compacted pellets. Two sintering procedures as hot-pressing and spark plasma sintering (SPS) were employed. The thermoelectric properties and mechanical strength were measured in all case. Thermoelectric properties for p-type (Bi0.25Sb0.75)2Te3 and n-type Bi2(Te0.2Se0.8)3 changed with sintering temperature in both sintering methods. Mechanical strength and relative density increase with sintering temperature in two sintering procedures. The results firmly suggest that both sintering procedures are promising to obtain high performance thermoelectric materials.

Source: Key engineering materials

DOI: 10.4028/www.scientific.net/kem.336-338.864

Authors: Wei Ren, Xue Quan Liu, Xiao Lin Wang, Hong Yi Jiang

Institutions: China Iron and Steel Research Institute Group, Wuhan University of Technology

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

OpenAlex ID: W1996454023

FWCI:

Cites: 8

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Related to: 10