炭化けい素の摩擦摩耗特性に及ぼす添加介在粒子の影響

概要

論文の詳細を見る
The effects of particles interposed between rubbing surfaces on the friction and wear characteristics of silicon carbide were examined. The interposing particles tested were silicon carbide and silicon dioxide with different shapes and grain sizes. Interposition of the particles between silicon carbide specimens resulted in considerable improvement of their friction and wear performance, since the interposing particles prevented edge loading and mitigated local contact stress concentration. Silicon dioxide particles with a lower hardness and fracture toughness than those of silicon carbide were better able to improve the friction and wear performance than silicon carbide particles. in addition, silicon dioxide particles with ionic bonding easily formed a thin surface film compared with silicon carbide particles with covalent bonding leading to a remarkable reduction in friction.
社団法人日本機械学会の論文
1997-12-25