Abstract
B-C system compounds were prepared by arc melting in argon atmosphere using B4C, B and C powders. The non-stoichiometric composition of the B-C compounds ranged between 10 and 20at%C. The maxima of the Seebeck coefficient values were observed at 20at%C (B4C), and the greatest value was 270 μV/K at 1100K. The electrical conductivity increased with increasing carbon content in general, but had minimum at 17at%C (B5C). The thermal conductivity increased with increasing carbon content. The thermoelectric figure of merit values (Z) decreased with increasing carbon content, but the Z values showed maximum at 20at%C (B4C). The greatest ZT value of B4C at 1100K was 0.15.
Original language | English |
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Pages (from-to) | 306-310 |
Number of pages | 5 |
Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
Volume | 43 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1996 Mar |
Keywords
- Arc melting
- Boron carbide
- High temperature
- Non-stoichiometry
- Thermoelectric properties
ASJC Scopus subject areas
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry