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HARD COATING, METHOD FOR MANUFACTURING SAME, AND HARD-COATED ARTICLE 发明申请

2023-08-04 2980 136K 0

专利信息

申请日期 2025-07-11 申请号 US14764251
公开(公告)号 US20150361269A1 公开(公告)日 2015-12-17
公开国别 US 申请人省市代码 全国
申请人 KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE sTEEL LTD )
简介 Disclosed is a hard coating including a chemical composition specified by formula : (TiaAlbSicRd)Ox, where R represents at least one rare-earth element; and a, b, c, d, and x are atomic ratios respectively of Ti, Al, Si, R, and O. The atomic ratios meet conditions as specified by formulae : 0.30≦a≦0.7, 0.30≦b≦0.70, 0≦c≦0.2, 0.005≦d≦0.05, a+b+c+d=1, and 0.5≦a/b<1. The atomic ratios meet a condition as specified by Formula (1) when R does not include Ce. The atomic ratios meet a condition as specified by Formula (2) when R includes Ce. The hard coating has better wear resistance as compared with conventional nitride films and oxide films. [in-line-formulae]0.8≦[x/(2a+1.5b+2c+1.5d)]≦1.2   (1)[/in-line-formulae] [in-line-formulae]0.8≦[x/(2a+1.5b+2c+2d)]≦1.2   (2)[/in-line-formulae]


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