Thermal Conductivity Measurement of the AlN Ceramics at the Grain Scale Using Thermoreflectance Technique

Abstract:

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The thermal conductivity at the micrometer-scale of AlN ceramics with eliminated grain boundary phase was measured by the thermoreflectance technique with periodic heating. Thermal conductivities were ranged from 160 to 260 W/m•K and an average value of 201 W/m•K was obtained from a 22 m2 area. The variation in the thermal conductivities was related to the individual AlN grains and grain boundary characteristics.

Info:

Periodical:

Edited by:

Katsutoshi Komeya, Yi-Bing Cheng, Junichi Tatami and Mamoru Mitomo

Pages:

65-67

DOI:

10.4028/www.scientific.net/KEM.403.65

Citation:

S. K. Lee et al., "Thermal Conductivity Measurement of the AlN Ceramics at the Grain Scale Using Thermoreflectance Technique", Key Engineering Materials, Vol. 403, pp. 65-67, 2009

Online since:

December 2008

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$35.00

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