Stacks having hermetic capping layers over porous ceramic matrix composite structures
US9419333B1 · kind B1 · utility
6Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/28
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided are stacks including CMC structures and capping layers deposited on surfaces of these CMC structures. Also provided are methods for hermetically sealing the surfaces of the CMC structures with the capping layers. These stacks may be used to construct walls of radomes that enclose antennas and other equipment of aerospace vehicles. The capping layers may form smooth external surfaces of the radomes and may hermetically seal the underlying CMC structures. The dielectric properties of these stacks may be configured to minimize interference with operations of the antennas and other equipment deposited within the radome.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.