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Title: Method of producing an internal cavity in a ceramic matrix composite and mandrel therefor

Patent ·
OSTI ID:1600188
; ;

A process for producing an internal cavity in a CMC article and mandrels used therewith. The process entails incorporating a mandrel made of a material that is substantially absorbed during thermal treatment of a preform to form the CMC article. The mandrel material is preferably reactive with one or more constituents of the CMC preform during the thermal treatment. The material is preferably silicon or a silicon alloy.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
10,450,235
Application Number:
13/780,306
OSTI ID:
1600188
Resource Relation:
Patent File Date: 02/28/2013
Country of Publication:
United States
Language:
English

References (35)

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