Fabrication and Microstructure of Electrically Conductive AlN with High Thermal Conductivity

Abstract:

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The electrically conductive AlN with high thermal conductivity were successfully fabricated by sintering AlN with a composite additive of 1wt.% Y2O3 and 4wt.% CeO2 in carbon-reduced atmosphere at over 1600 °C. The sudden increase in electrical conductivity is thought to be caused by transition of grain boundary phase from rare-earth oxide to rare-earth oxycarbide. Their electrical conductivities and thermal conductivities increased with increasing sintering temperature. Additionally, sintering temperature influenced the resultant microstructures.

Info:

Periodical:

Edited by:

Takashi Goto, Yi-Bing Cheng and Takashi Akatsu

Pages:

57-60

DOI:

10.4028/www.scientific.net/KEM.484.57

Citation:

T. Kusunose et al., "Fabrication and Microstructure of Electrically Conductive AlN with High Thermal Conductivity", Key Engineering Materials, Vol. 484, pp. 57-60, 2011

Online since:

July 2011

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Price:

$35.00

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