Thin molybdenum coatings on aluminum for solar energy absorption

Details Thin molybdenum coatings on aluminum for solar energy absorption Thin molybdenum coatings on aluminum for solar energy absorption

1977-06-03

1978-04-04

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

126270, 204 58, 428651, B32B 1520

Patent

active

040829073

ABSTRACT:
A thin, adherent coating is described that is highly absorptive to solar energy and has a low emissivity for thermal energy, thereby being a useful selective surface for solar energy collection. This coating is formed on aluminum and its alloys by a simple electrochemical process and consists of complex aluminum and molybdenum oxides and metallic molybdenum which are deposited as a near-monatomic layer of molybdenum and its oxides. The coating withstands exposure to 400.degree. F (204.degree. C) and 1 hour in boiling water without change in properties.

REFERENCES:
patent: 3639221 (1972-02-01), Dorsey, Jr.
patent: 3769180 (1973-10-01), Gedde
patent: 3920413 (1975-11-01), Lowery
J. Vac. Sci. Technol.; vol. 12, No. 1, Jan./Feb. 1975, Petersen et al., "Thin Film Coatings for Solar-Thermal Power Systems," pp. 174-181.
"Some Reflection and Radiation Characteristics of Aluminum", Taylor et al., Housing, Piping and Air Conditioning, Jan. 1939, pp. 59-63.
"Bright Anodized Coatings for Temperature Control of Space Vehicles", Weaver, Plating, Dec. 1964, pp. 1165-1172.

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