WS_2を含有した複合材料接点の低速しゆう動試験片の分析

摘要

In this research, composite materials containing good conductive Cu, Fe, W and solid lubricants (WS_2) were examined. Three kinds of composite materials containing different rate elements were used. Cu disk was examined as a partner material. Consequently, it becomes clear that composite materials containing the smallest quantity (30wt.%) have excellent characteristics in contact resistance and coefficient of friction. In order to examine the results further more, EPMA are used to analyze the sliding scar. Consequently, it is showed that composite materials containing 30wt.% of WS_2 has few influence of oxide films by Cu etc and excellent characteristics.%本研究では，導電性のよいCu-Fe-W系合金に固体潤滑剤（WS_2）をそれぞれ異なる割合で含有させた複合材料を3種類使用し試験を行った．相手材としてCuディスクを用いた．その結果，WS_2を最も少量の30wt.％含む複合材料が接触抵抗と摩擦係数のどちらも低く優れた特性を示すことがわかった．その原因をさらに検討するためにEPMAにより試料表面の分析を行った．その結果，WS_2を30wt.％含む複合材料がCu等の酸化皮膜による影響が少なく優れた特性を示す原因であることがわかった．