CMC articles having small complex features
US7600979B2 · kind B2 · utility
34Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2006 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Jan 22, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249929
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic matrix composite (CMC) component for gas turbine engines, the component having fine features such as thin edges with thicknesses of less than about 0.030 inches and small radii of less that about 0.030 inches formed using the combination of prepreg plies layed up with non-ply ceramic inserts. The CMC components of the present invention replace small ply inserts cut to size to fit into areas of contour change or thickness change, and replace the small ply inserts with a fabricated single piece discontinuously reinforced composite insert, resulting in fewer defects, such as wrinkles, and better dimensional control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.