Hard coating material, sliding member coated with hard coating m

Details Hard coating material, sliding member coated with hard coating m Hard coating material, sliding member coated with hard coating m

1994-03-08

1995-09-12

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428472, 4284721, 428689, 428698, 428702, 29888074, 427523, 427528, 427530, 1062861, B32B 1504, B32B 1800, H01R 1303

Patent

active

054495474

ABSTRACT:
A hard film 2 is applied to cover an outer circumferential surface of a piston ring 1 by an ion plating process. Either 3 percent to 20 percent by weight of oxygen, or 2 percent to 11 percent by weight of carbon is included in a solid solution state in a crystal structure of CrN in the hard film 2. The Vickers hardness of the hard film 2 is in a range of 1600 to 2200.

REFERENCES:
patent: 4486285 (1984-12-01), Aubert et al.
patent: 4720442 (1988-01-01), Shinkai
patent: 4765847 (1988-08-01), Arai
patent: 4818351 (1989-04-01), Arai
patent: 4918806 (1990-04-01), Watanabe
patent: 4943486 (1990-07-01), Uchiyama
patent: 4966751 (1990-10-01), Kaede
patent: 5015537 (1991-05-01), Uchiyama
patent: 5077091 (1991-12-01), Nowak
patent: 5085926 (1992-02-01), Iida
patent: 5316321 (1994-05-01), Ishida
WPI Abstract Accession No: 85-273074/44 & JP 600184672 A.
WPI Abstract Accession No: 85-161646/27 & JP 600091356 A.

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