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US 5,326,642 AGranted
Infrared absorptive coating for beryllium surface
AssigneeRockwell International Corporation
InventorHarry A. Moreen
Life of this patent
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Abstract
The Infrared absorptive coating for beryllium surface shown here is produced by providing a flat beryllium surface 10, which is cleaned 12, toughened 14, coated with a modifying material 16-22, and anodized 24. The modifying material, preferably aluminum, is selected for infrared absorptiveness. It is applied in a thickness, preferably about 0.0001 inch sufficient to provide such absorptiveness without excessively interfering with the nuclear hardness of the underlying beryllium.
Claims2
A nuclear hard, infrared absorptive composite comprising:
- (a) a piece of beryllium with a roughened surface;
- and
- (b) a layer, less than about 0.0005 inch thick, of anodized aluminum oxide on the roughened surface of the piece.
A nuclear hard, infrared absorptive composite comprising:
- (a) a piece of beryllium wit a roughened surface;
- and
- (b) a layer, less than about 0.0005 inch thick, of anodized magnesium oxide on the roughened surface of the piece.
Dependencies are inferred from the claim text.