Method of fabricating a ceramic matrix composite
US10544063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of fabricating a ceramic matrix composite includes generating a stream of vaporized precursor and, optionally, a vaporized rare earth element. The vaporized precursor is a precursor of either silicon carbide or silicon nitride. The stream flows for one or more periods of time through a chamber that contains a fibrous structure such that the fibrous structure is exposed to the stream. The fibrous structure initially contains no silicon carbide matrix or silicon nitride matrix. The vaporized precursor deposits over the period of time on the fibrous structure as a substantially fully dense ceramic matrix of either the silicon carbide or the silicon nitride. For at least a portion of the period of time, the vaporized rare earth element is included in the stream such that the ceramic matrix deposited during that time includes dispersed rare earth element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.