S115013 大気圧プラズマによる金属表面の微細突起形成とその摩擦特性([S11501]トライボロジーの基礎と応用(1))

概要

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This paper describes formation mechanism of textured surface with nano-sized bumps by atmospheric pressure plasma and its application on tribology. Since the atmospheric pressure plasma can generate activated oxygen in air, oxides can grows on a metal surface at high rate by the plasma irradiation. It is found that, if stearic acid film preliminarily forms on metal surface, the oxides locally grows and easily generate a lot of nano-sized bumps with about 100nm in diameter. In this case, the stearic acid film may act as masking film against oxidation with a lot of defect because a metal substrate does not oxidize except for the bumps. In addition, tribological property of the surface with nano-sized bumps is investigated. It is found that isolated bumps can bring about small fluctuation of friction in mixed lubrication regime.
一般社団法人日本機械学会の論文
2011-09-11