10610 イオン液体のトライボケミカル反応に対する荷重および摩擦距離の影響(潤滑,一般講演)

概要

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Ionic liquids are expected as lubricants under vacuum condition, because of low vapor pressure. We carried out pin-on-disc tribotests in high vacuum to find out effects of load and sliding distance on tribo-chemical reaction of ionic liquids. Residual gases pressure was measured by using Q-mass analyzer during the sliding. The ionic liquid N, N, N-Trimethyl-N-propylammonium bis(trifluoromethanesulfonyl)imide and disc/pin materials are Al/SiC, Cu/SiC. In the case of aluminum, the ionic liquid was decomposed and some types of gases were generated by tribochemical reaction during the sliding. When sliding distance is about 2000m, the friction coefficient and partial pressures increased rapidly. With the increase of load, the amount of rise in partial pressures of discharged gases become large. On the other hand, Cu did not cause tribo-chemical reaction, and changes of partial pressures or the friction coefficient in load and sliding distance was also not shown.
一般社団法人日本機械学会の論文
2009-03-05