2103 大気中におけるCNx膜の摩擦摩耗特性の温度依存性(薄膜・解析手法,一般講演)

概要

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It was supposed that equilibrium of water molecule adsorb and desorb depended on specimen surface temperature and humidity of friction test environment. In this study, we conducted friction test between CNx (Carbon Nitride) coating and Si_3N_4 (Silicon Nitride) ball at temperatures between 23 and 150 ℃ in ambient air, in order to study the role of adsorbed water molecule in tribological properties. The results show that temperature varies between 23 and 150 ℃ and humidity conditions are varied from less than 5%RH to 60-70%RH, friction coefficient decreased with increasing temperature. The relationship between friction coefficient and estimated adsorbed water molecule on CNx coating showed that friction coefficient lower than 0.05 took place when adsorbed water molecule amount was lower than approx. 9 (a.u.) which was independent of humidity.
社団法人日本機械学会の論文
2008-04-20