親油性を改良した窒化ケイ素の摺動特性

概要

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Frictional properties of 10 mass%-Fe_3O_4 added Si_3N_4 were investigated and the following results were obtained : 1) A series of sliding tests, which were done changing the combination of the material of the plate and pin, revealed that 10 mass%-Fe_3O_4 added Si_3N_4 provided the smallest frictional coefficient, improvement in anti-scuffing and wear properties as well : 2) Wear tracks were not observed on the sliding surface of chilled cast iron pin when 10 mass%-Fe_3O_4 added Si_3N_4 was applied to the plate : 3) Piston-rings and cylinder-liners made of 10 mass%-Fe_3O_4 added Si_3N_4 were installed in a real engine and then tested. The results proved an actual reduction of friction loss. These experimental results confirmed that a new material with "high oilphilic characteristics" for sliding parts was actually developed.
社団法人日本セラミックス協会の論文
2002-12-01