窒化炭素膜の極低摩擦現象に及ぼす相手面表面粗さと移着膜の影響

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タイトル別名
  • Effect of Surface Roughness and Transfer Layer of Mating Ceramic Parts for Ultra Low Friction Phenomena in Sliding between CNx and Ceramics
  • チッカ タンソ マク ノ ゴクテイ マサツ ゲンショウ ニ オヨボス アイテメン ヒョウメン アラサ ト イチャク マク ノ エイキョウ

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抄録

In order to know the running-in process for ultra low friction of CNx sliding against Si3N4 balls in N2, the effect of surface roughness of balls on friction coefficient was investigated. As results, it was shown that friction coefficient for all of Si3N4 balls decreased with sliding cycles and reached to the specific minimum values less than 0.05. For friction coefficient less than 0.01, smooth surface of ball with 30 nm Ry as initial surface roughness was necessary. Smooth surfaces of CNx coating and Si3N4 ball after running-in provide ultra low friction after the transfer of tiny amount of CNx to Si3N4 ball and the generating of thin and uniform transfer film on balls.

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