Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Laminated film and laminated film-coated member
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.
Kobe Steel, Ltd.
Y Y F F F Y C Y F F F C Y F C F F
Y10T Y10T F16C F16C F16C Y10T C23C Y10T F16C F16C F16C C23C Y10T F16C C23C F16C F16C
additional additional additional additional additional additional inventional additional additional additional additional inventional additional inventional inventional additional additional
Hirotaka Kenji
Ito Yamamoto