发明名称 HARD COATING FILM AND HARD COATING FILM COATED WORKING TOOL
摘要 A hard coating film formed on a surface of a predetermined member and having excellent wear resistance and adhesion resistance, the hard coating film includes: a three-layer structure composed of a third layer formed in contact with the surface of the predetermined member, a second layer formed on the third layer, and a first layer formed on the second layer to constitute the surface; the first layer being made of (Cr1-a-bBa(SiC)b)(CcOdN1-c-d) [provided that SiC is silicon carbide, and a, b, c and d are atomic ratios in ranges of 0≰a≰0.2, 0.01≰b≰0.2, 0≰c≰0.5 and 0≰d≰0.3, respectively; the second layer being made of AlCrN or AlCrDN [provided that D includes either one kind of elements of a Group IVa, a Group Va and a Group VIa (except Cr) of a Periodic Table of Elements and Y, or SiC (silicon carbide)]; and the third layer being made of nitride, carbon nitride or carbide of metals including elements of one kind or more kinds of Al, Ti, Zr, Hf, V, Nb, Ta, Cr and W.
申请公布号 US2011117342(A1) 申请公布日期 2011.05.19
申请号 US200813054019 申请日期 2008.07.14
申请人 OSG CORPORATION 发明人 SUGITA HIROAKI;TOIHARA TAKAOMI;SUZUKI TAKAMASA
分类号 B32B7/02;B32B18/00 主分类号 B32B7/02
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