Method for the production of homogeneous coatings of two or more

Details Method for the production of homogeneous coatings of two or more Method for the production of homogeneous coatings of two or more

1984-04-26

1985-04-09

Childs, Sadie L.

Coating processes

Optical element produced

427165, 427166, 427226, 427228, 427229, 427249, 427252, 427255, 4272552, 4272553, B05D 506

Patent

active

045101825

ABSTRACT:
A method for the production of homogeneous coatings of a substance comprising at least two metals and/or metal compounds on a substrate, which method comprises depositing the substance from a gas or liquid phase from dinuclear or polynuclear mixed metal compounds via a four step process comprising heating the substance to 85-90% of a final temperature over a period of 5 to 20 minutes, reducing the temperature to a second temperature which is 2/3 of said final temperature, maintaining the second temperature for 11/2 to 21/2 hours, raising the second temperature over a period of 20 to 40 minutes, and maintaining the final temperature for 1 to 2 hours. The coated materials are, for example, useful for coating solar collectors with an .alpha. of at least 0.70 and an .epsilon. no greater than 0.30.

REFERENCES:
patent: 2812272 (1957-11-01), Nack et al.
patent: 2898234 (1959-08-01), Nack et al.
patent: 3018194 (1962-01-01), Norman et al.
patent: 3071493 (1963-01-01), Whaley et al.
patent: 3075858 (1963-01-01), Breining et al.
patent: 3083550 (1963-04-01), Averbach
patent: 4431708 (1984-02-01), Carver et al.

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