Solar energy absorbing article and method of making same

Details Solar energy absorbing article and method of making same Solar energy absorbing article and method of making same

1975-01-31

1977-01-11

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

148 627, 428331, C25D 544

Patent

active

040025411

ABSTRACT:
An anodized article and method of absorbing solar energy comprises an alloy layer of aluminum containing up to 18% by weight silicon having a surface matrix layer of aluminum oxide and crystals of silicon dioxide grown from the alloy extending through, bound in and supported by the aluminum oxide matrix. The anodized article may be made by etching the alloy layer to expose virgin alloy and particularly silicon and electrochemically anodizing the etched alloy to grow silicon dioxide crystals and to form an aluminum oxide supporting matrix around the crystals.

REFERENCES:
patent: 3400057 (1968-09-01), Coates et al.

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