Deposition of ceramic coatings using sol-gel processing with application of a thermal gradient
US4921731A · kind A · utility
57Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1987 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/113
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of ceramic coating a substrate by thermodeposition from a sol made by hydrolyzing and peptizing organometallic compounds in water. The sol contains colloidal particles having a size between about 0.0005 micron and about 10 microns and the deposited coatings have good packing characteristics as well as smoothness. Composite coatings are also deposited which contain reinforcing materials such as SiC embedded in the coated matrix. These coatings afford the substrate onto which they are coated excellent wear, anti-corrosion and insulating characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.