Processing method for solid core ceramic matrix composite airfoil
US8137611B2 · kind B2 · utility
7Cited by
58References
9Claims
0Family size
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Key dates
| Filing date | Mar 17, 2005 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Nov 30, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24479
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of processing solid core ceramic matrix composite articles. The method improves the physical characteristics of the article by forming the airfoil using a co-processing method wherein a refractory ceramic is cast against a preformed ceramic matrix composite (CMC) shell. In one aspect, the shell is continuous to help prevent delaminations. In another aspect, the shell is open. In one embodiment, the article includes a split line. The split line helps the article to be less susceptible to damage caused from internal strain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.