Method of producing an internal cavity in a ceramic matrix composite
US10011043B2 · kind B2 · utility
6Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a fusible material that is melted and drained during a thermal treatment of a CMC preform to form the CMC article. The mandrel material is preferably non-wetting and non-reactive with any constituents of the CMC preform during the thermal treatment. The mandrel is preferably tin or an alloy of tin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.