Work

Thermoelectric properties of highly oriented Ca2.7Bi0.3Co4O9 fabricated by rolling process

Year: 2009

Type: article

Abstract: Highly oriented, Bi-substituted Ca3Co4O9(Ca2.7Bi0.3Co4O9) was processed by the rolling method and its thermoelectric properties were investigated. The electrical conductivity (σ), Seebeck coefficient (α), thermal conductivity (k) and ZT value at 870 K were 123.4 S/cm, 172.7 μV/K, 2.1 W/mK, and 0.152, respectively. The electrical conductivity was about 1.5 times higher than that of a conventionally sintered sample. This rolling process is a very powerful method to produce a plate-like particle orientation in a ceramic microstructure and will be useful in the mass production of thermoelectric elements in powder injection molding (PIM).

Source: Journal of the Ceramic Society of Japan

DOI: 10.2109/jcersj2.117.643

Authors: Jong Won PARK, Dong Ha KWAK, Sun Ho YOON, Seung Chul CHOI

Institution: Ajou University

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: diamond

OpenAlex ID: W2079174797

FWCI: 0.141

Cites: 15

Cited by: 17

Related to: 10