METHOD OF PRODUCING AN INTERNAL CAVITY IN A CERAMIC MATRIX COMPOSITE
摘要
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.
申请公布号
CA2813350(A1)
申请公布日期
2013.10.27
申请号
CA20132813350
申请日期
2013.04.18
申请人
GENERAL ELECTRIC COMPANY
发明人
GRAY, PAUL EDWARD;ROBERTS, HERBERT CHIDSEY, III;TAXACHER, GLENN CURTIS;WALKER, SHEENA KUM FOSTER