Microwave Sintering of Alumina-Silicon Carbide Nanocomposites

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Densification behavior, microstructural developments and mechanical properties of 5 wt% SiC nano particulate toughened Al2O3 composites were prepared by using microwave sintering at different sintering temperatures. Densities of up to 97.5% of the theoretical value were achieved at temperature as low as 1380°C. Improvements in fracture toughness and bending strengths are of the order of 99% theoretical dense conventionally sintered composites. Surface heating was observed at the final stages of densification. No thermal runaway was observed in the nanocomposites due to presence of SiC spheroids.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1072-1075

DOI:

10.4028/www.scientific.net/KEM.336-338.1072

Citation:

K. Ahmad et al., "Microwave Sintering of Alumina-Silicon Carbide Nanocomposites", Key Engineering Materials, Vols. 336-338, pp. 1072-1075, 2007

Online since:

April 2007

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$35.00

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