MNM-2B-6 フェムト秒レーザによるナノ周期構造付与DLC膜のトライボロジー特性(セッション 2B マイクロ・ナノトライボロジー)

概要

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Higher performance hard coatings such as diamond-like carbon (DLC) films and improved surfaces are being investigated for their friction reduction properties. In the present study, the frictional properties of DLC films with the periodic structures were investigated using a block-on-ring type friction tester under lubrication. These periodic structures have been generated on the surface of DLC films by means of a polarized femtosecond (fs) laser of energies near the ablation threshold. Periodic structures have a mean spacing of about 100 nm with a length of 200-2000nm. Worn surfaces were observed by using an AFM. The steady-state friction coefficient and the running-in distance of the DLC with periodic structures was lower than that of the DLC without periodic structures.
一般社団法人日本機械学会の論文
2010-10-12