Corrosion resistant reflective articles
First Claim
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1. A reflective article, comprising:
- a glass substrate; and
a reflective metal coating deposited on the glass substrate comprising a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the population of tin atoms (if any) in an underlying subsurface stratum by at least one tin atom per hundred metal atoms thereby conferring on the reflective metal coating an enhanced resistance to corrosion.
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Abstract
A reflective article includes a glass substrate and a reflective metal coating deposited on the glass substrate including a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the population of tin atoms (if any) in an underlying subsurface stratum by at least one tin atom per hundred metal atoms thereby conferring on the reflective metal coating an enhanced resistance to corrosion. The reflective layer of silver is treated with an acidified aqueous solution of a stannous salt, which solution is free from opalescence, thereby to augment tin atom population in a surface stratum of the reflective metal coating.
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Citations
13 Claims
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1. A reflective article, comprising:
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a glass substrate; and a reflective metal coating deposited on the glass substrate comprising a reflective layer of silver and having a surface stratum which has a population of tin atoms which is augmented as compared with the population of tin atoms (if any) in an underlying subsurface stratum by at least one tin atom per hundred metal atoms thereby conferring on the reflective metal coating an enhanced resistance to corrosion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A reflective article, comprising:
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a glass substrate; and a reflective metal coating deposited on the glass substrate, wherein the reflective metal coating comprises a reflective layer of silver and has been treated with an acidified aqueous solution of a stannous salt, which solution is free from opalescence, thereby to augment tin atom population in a surface stratum of the reflective metal coating. - View Dependent Claims (13)
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Specification