Hard carbon coating-clad base material

Details Hard carbon coating-clad base material Hard carbon coating-clad base material

1993-12-21

1997-03-04

Nguyen, Ngoc-Yen

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428661, 428667, 428680, 428681, C23C 1626, B32B 1504

Patent

active

056077793

ABSTRACT:
The hard carbon coating-clad base material of the present invention comprises a base material, a substratal metal coating formed on the base material by a wet plating process, an intermediate metal coating comprising a titanium or chromium coating formed on the substratal metal coating by a dry plating process and a silicon coating formed on the titanium or chromium coating by a dry plating process, and a hard carbon coating formed on the silicon coating by a dry plating process. According to the present invention, a highly reliable hard carbon coating which is excellent in corrosion resistance, adhesion and abrasion resistance can be formed even on brass or an iron base material having poor corrosion resistance, such as SK steel and martensitic and ferritic stainless steels.

REFERENCES:
patent: 1792082 (1931-02-01), Fink et al.
patent: 2908966 (1959-10-01), Wagner
patent: 3125805 (1964-03-01), Horigan, Jr.
patent: 3795494 (1974-03-01), Hordon
patent: 4358922 (1982-11-01), Feldstein
patent: 4655884 (1987-04-01), Hills et al.
patent: 4761346 (1988-08-01), Naik

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