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Published June 1983 | public
Journal Article

Intergranular Crack-Deflection Toughening in Silicon Carbide

Abstract

The fracture toughness of three SiC-based materials was examined and correlated to toughening mechanisms. Crack deflection along grain boundaries in hot-pressed SiC-Al_2O_3 and SiC-ZrO_2 provided notable toughness increases compared to sintered α-Sic, which fractures transgranularly. The existence of a crack-deflection mechanism was confirmed by scanning electron microscopy.

Additional Information

© 1983 The American Ceramic Society. Received February 1, 1983; approved March 2, 1983. Supported by the Carborundum Resistant Materails Co. and the Office of Naval Research under Contract No N00014–81-K-0362.

Additional details

Created:
August 19, 2023
Modified:
October 17, 2023