Corrosion-resistant film for protecting surfaces of Ag and corro

Details Corrosion-resistant film for protecting surfaces of Ag and corro Corrosion-resistant film for protecting surfaces of Ag and corro

1995-08-24

1997-05-20

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148281, 148285, 359884, C23C 810, G11B 1110

Patent

active

056308868

ABSTRACT:
Disclosed is a corrosion-resistant film for protecting the surfaces of Ag, which comprises an Ag--Mg alloy having an Mg content of from 1 to 10 atomic % and which is applied to an Ag substrate. Also disclosed is a corrosion-resistant composite structure composed of an Ag substrate and a protective film of an Ag--Mg alloy with an Mg content of from 1 to 10 atomic % formed on the surface of the Ag substrate. The corrosion-resistant film protects an Ag with a silver-white gloss from being blackened by sulfide components, etc. The adhesiveness between the film and the Ag substrate is good. The composite structure has a high reflectivity and is useful as a reflective film for photo-magnetic recording media, optical recording media, reflectors, illuminators, etc. The surface of the corrosion-resisting film is oxidized to form an MgO layer on the film, and the film exhibits a high protecting effect.

REFERENCES:
patent: 2784123 (1957-03-01), Rappaport
patent: 3379566 (1968-04-01), Hannam
patent: 5076663 (1991-12-01), Arendt
patent: 5284527 (1994-02-01), Smeggil

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