Laminated film and laminated film-coated member
AssigneeKobe Steel, Ltd.
InventorsHirotaka Ito, Kenji Yamamoto
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AssigneeKobe Steel, Ltd.
InventorsHirotaka Ito, Kenji Yamamoto
Estimating the term…
A laminated film is provided which exhibits excellent durability even when formed over a surface of a member (in particular, sliding member) to be used under a high pressure of contacted surface of 2.0 GPa or more. The laminated film includes an intermediate layer which contains one or more compounds selected from the group consisting of a carbide, a boride, and a boron carbide compound of a metal element, and which has a hardness measured by a nanoindentation method (hereinafter referred to as a “nanoindentation hardness”) of not less than 20 GPa nor more than 35 GPa and a thickness of not less than 5 μm nor more than 10 μm, and a diamond-like carbon film which is formed over the intermediate layer, and which has a nanoindentation hardness of not less than 25 GPa nor more than 35 GPa and a thickness of not less than 0.3 μm nor more than 1.0 μm.
A laminated film, comprising:
Dependencies are inferred from the claim text.