Thermal Conductivities of β-SiAlONs by Mechanically Activated Combustion Synthesis

Abstract:

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–sialons (Si6-zAlzOzN8-z, z=3) synthesized by mechanically activated combustion synthesis (MA-CS) at a low N2 pressure of 1 MPa, were sintered by Spark Plasma Sintering (SPS) and thermal conductivity was measured at room temperatures. Specimens were fully densified at 1600oC for 10 mins. and showed only –sialon phases confirmed by x-ray diffraction patterns though un-reacted Si was present as impurities after MA-CS. Thermal conductivities increased with sintering temperature and had a maximum value 5.49 W m-1 K-1 for specimens sintered at 1700oC.

Info:

Periodical:

Edited by:

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

Pages:

139-140

DOI:

10.4028/www.scientific.net/KEM.403.139

Citation:

R. Sivakumar et al., "Thermal Conductivities of β-SiAlONs by Mechanically Activated Combustion Synthesis", Key Engineering Materials, Vol. 403, pp. 139-140, 2009

Online since:

December 2008

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$35.00

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