Diffuse black plasma sprayed coatings
US5176964A · kind A · utility
8Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | Apr 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/266
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention resides in an optically black article comprising a substrate and an optically black coating adhered to the substrate. The coating has an absorptivity of at least about 0.92 and an emissivity of at least about 0.85, obtained by plasma spraying onto the substrate a composition comprising about 20% to about 50% by weight of a carbonyl metal and about 80% to about 50% by weight of a ceramic metal oxide. A preferred carbonyl metal is carbonyl iron. A preferred ceramic metal oxide is a yttria stabilized zirconia, having an average particle size in the range of about 10 microns to about 106 microns (140 mesh).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.