815 Wear Resistance of Aluminum Nitride-Aluminum Composites in Ethanol

Aluminum nitride - aluminum composite disk was slid against Si_3N_4 pin in ethanol to evaluate the wear resistance. The wear resistance of the aluminum nitride - aluminum composite was much higher than that of aluminum metal. Worn surface indicated that the amount of aluminum, which adhered from the composite disk to Si_3N_4 pin, was much less than that from aluminum metal disk. The wear of the composite with high AlN content was lower than that with low AlN content.