CeO_2-Al_2O_3-ZrO_2溶射膜の混合及び境界潤滑域における摩擦特性

概要

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In order to find a counterpart for reducing the frictional coefficient of Al_2O_3-ZrO_2-CeO_2 plasma-splayed film, the sliding properties in mixed and boundary lubricating conditions was investigated. It was found that combination of a CrN-coated cast iron pin and an Al_2O_3-ZrO_2-CeO_2 plasma sprayed plate provided the lowest frictional coefficient among several combinations chosen from practical materials. The coefficient of friction was much lower than that of the materials combination widely used for piston ring and cylinder liner. It was inferred that the combination of a pin made of hard materials with high density, a smooth surface such as CrN-coated cast iron and a porous plate can reduce the frictional coefficient because less sliding resistance is implemented and porosity retains oil.
社団法人日本セラミックス協会の論文
2004-11-01