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U.S. Department of Energy
Office of Scientific and Technical Information

Method of producing an internal cavity in a ceramic matrix composite

Patent ·
OSTI ID:1462180
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.
Research Organization:
General Electric Company, Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
GENERAL ELECTRIC COMPANY (Schenectady, NY)
Patent Number(s):
10,011,043
Application Number:
13/780,584
OSTI ID:
1462180
Country of Publication:
United States
Language:
English