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The thermoelectric performance of silicon carbide semiconductor made from rice hull

  • E. Maed A (a1) and M. Komatsu (a1)

Abstract

Thermoelectric properties (Thermoelectromotive force and electrical conductivity) of porous silicon carbide ceramics are evaluated. Porous silicon carbide ceramics are made from rice hull by reacting silica and carbon, both of which are included in rice hull, using hotpressing method[1].When nitrogen gas is used as enviromental gas for hotpressing, this material becomes n-type semiconductor. It shows comparably high themoelectromotive force. Thermoelectric properties of this material change with the processing conditions.The relationship between thermoelectric properties and microstructure is also evaluated.

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1. Komatsu, M., Maeda, E. and Adachi, Y., Proceedings of the 12th Japan-Korea Seminar on Ceramics, pp.499503 (1995)
2. Dai-Jiten, Kagaku (General Dictionary for Chemistry) 5, Kyouritsu shuppan LTD., Tokyo,(1963), in Japanese
3. Koumoto, K., Shimoyanagi, M., Takeda, S. and Yanagida, H., J. of Mater. Sci. Letters 6 pp.1,4531,455 (1987)
4. Mansour, N.A.L. and Hanna, S.B., Trans.J.Br.Ceram. 78 p.132 (1979)
5. Suga, Yoshio, NETSUDEN-HANDOUTAIQ(Thermoelectric Semiconductor), Maki Shoten LTD., Tokyo, 1966, p.263, in Japanese
6. Pai, C., Koumoto, K. and Yanagida, H., J. of Korean Ceramic Society vol.27 No.3 pp.412422 (1990)

The thermoelectric performance of silicon carbide semiconductor made from rice hull

  • E. Maed A (a1) and M. Komatsu (a1)

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