Abstract
The effect of the fracture toughness of impact particles on the erosive wear of ceramics was examined. Six kinds of Al2O3 abrasive particles, which were almost the same in size, figure and hardness, but only different in fracture toughness were used as impact particles. Sintered Si3N4, Al2O3 (HA90) and glass were used as target materials. Irrespective of the target materials, the erosive wear rate was qualitatively proportional to the fracture toughness of the impact particles.
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