Abstract

Analytically induced wear mechanism of elastic body under Hertzian contact is applied in acutual wear test of ceramics. There are two types of wear in ceramics, a large scale wear and a small scale wear. The large scale wear is commensurable with Hertzian contact area and the small scale wear with real contact area. Nondimensional parameter, S$_{c}$, is introduced and fully examined to estimate or predict wear rate of ceramics. Ceramic wear for S$_{c}$.leq.0.8 is in small scale wear and for S$_{c}$;geq.1.6 in large scale wear. wear.

Keywords

• Ceramics;
• Wear Mechanism;
• Surface Crack;
• Large Scale Wear;
• Small Scale Wear;
• Wear Zone;
• Fracture Toughness;
• Wear Rate

• 세라믹;
• 마멸기구;
• 표면구열;
• 대규모마멸;
• 소규모마멸;
• 마멸영역;
• 파양인성치;
• 마멸율;

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