Boundary Lubrication Characteristic of Metal-Containing Diamond-Like Carbon (DLC) Films with Poly Alpha Olefin (PAO) Lubricant
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概要
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The effects of metals such as cobalt (Co), cerium (Ce), magnesium (Mg), nickel (Ni) and titanium (Ti) added to diamond-like carbon (DLC) films on boundary lubrication properties were investigated using a ball-on disk tribometer. The boundary lubrication properties of metal-containing DLC films are improved compared with those of DLC films without metal under poly alpha olefin (PAO) lubricant with and without glycerol mono-oleate (GMO) additives. Moreover, under boundary lubrication using PAO with GMO, DLC films with an appropriate quantity of Co-added show the lowest friction coefficient of μ= 0.02 among all the tested metal-containing DLC films. The friction product layers were formed on the sliding surface of Co-containing DLC films. Lower-nanofriction layers formed on the sliding surface were observed by force modulation methods of atomic force microscopy (AFM).
著者
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MIYAKE Shojiro
Nippon Institute of Technology
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Yasuda Yoshiteru
Materials Research Lab Nissan Research Center Nissan Moter Co. Ltd.
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Kurosaka Wataru
Nippon Institute of Technology
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Komiya Mitsuyoshi
Nippon Institute of Technology
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Matsumoto Yasuaki
Nippon Institute of Technology
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Saito Yuta
Nippon Institute of Technology
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Okamoto Yusuke
Materials Research Lab., Nissan Motor Co., Ltd.
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Yasuda Yoshiteru
Materials Research Lab., Nissan Motor Co., Ltd.
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