Abstract
Effects of the AIN content dispersed in the aluminum based sintered composite material on the cavitation toughness have been examined. The Al-AIN composites were prepared by two processes. One was the directly nitriding process and another was the conventional premixing process in this study. The cavitation toughness was measured by using a magnetostriction vibratory cavitation apparatus. The nitrided and sintered Al-AIN composite material showed superior cavitation toughness compared to the premixed composite. This is because AIN particles in the former have good bonding to the matrix, while AINs of the latter are mechanically held at the primary particle boundaries.
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