Black-metallized substrate surfaces

Details Black-metallized substrate surfaces Black-metallized substrate surfaces

1985-04-12

1987-04-14

Smith, John D.

Coating processes

With pretreatment of the base

Preapplied reactant or reaction promoter or hardener

126901, 427162, 427305, 427306, 4274431, C23C 1830

Patent

active

046577866

ABSTRACT:
Black-metallized substrate surfaces which are characterized by the fact that they reflect at most 20% of electromagnetic radiation within the wavelength range from 200 to 5,000 nm and at least 50% within the wavelength range from 7,000 to 24,000 nm, the percentages being relative to the mean value over the entire wavelength range in each case, and which can be used as sunlight collectors are obtained by metallizing activated substrate surfaces without current in metallizing baths which contain a polymeric surface-active compound.

REFERENCES:
patent: 3372059 (1968-03-01), Roth
patent: 3607317 (1971-06-01), Schneble
patent: 3867207 (1975-02-01), Decker
patent: 3903319 (1975-02-01), El-Mohamad
patent: 4244789 (1981-01-01), Coll-Palagos
patent: 4361630 (1982-11-01), Johnson
patent: 4467067 (1984-08-01), Valayil
patent: 4511614 (1985-04-01), Greeson
Johnson, "Black Electroless Nickel Surface Morphologies with Extremely High Light Absorption Capacity", Metal Finishing, pp. 21-24., Jul. 1980.
Weiner; Electroplating of Plastics, Handbook of Theory and Practice, published 1977, pp. 193-211.
Solar Energy, Band 19, Nr. 3, 1977, Seiten 271-276, Pergamon Press, GB.
E. M. Lushiku et al.: "Ellipsometry in the Study of Selective Radiation-Absorbing Surfaces" Figures 1,2.

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