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The thermoelectric performance of silicon carbide semiconductor made from rice hull

Published online by Cambridge University Press:  10 February 2011

E. Maed A
Affiliation:
Kyushu National Industrial Research Institute, Tosu, Japan
M. Komatsu
Affiliation:
Kyushu National Industrial Research Institute, Tosu, Japan
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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.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

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References

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