Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method of making a fiber preform for ceramic matrix composite (CMC) fabrication
A method of making a fiber preform for ceramic matrix composite (CMC) fabrication that utilizes a fugitive binder and a machining step is described. The method includes, according to one embodiment, laying up a plurality of plies to form a stack, where each ply comprises an arrangement of fibers. The stack is infiltrated with a polymer at an elevated temperature to form an infiltrated stack that is cooled to form a rigid preform. The rigid fiber preform is machined to have a predetermined shape, such that a machined fiber preform is formed. A composite assembly including the machined fiber preform is formed and then the composite assembly is heated at a sufficient temperature to pyrolyze the polymer. Thus, a porous preform of a predetermined geometry is formed for further processing into a CMC.
Method of making a fiber preform for ceramic matrix composite (CMC) fabrication
A method of making a fiber preform for ceramic matrix composite (CMC) fabrication that utilizes a fugitive binder and a machining step is described. The method includes, according to one embodiment, laying up a plurality of plies to form a stack, where each ply comprises an arrangement of fibers. The stack is infiltrated with a polymer at an elevated temperature to form an infiltrated stack that is cooled to form a rigid preform. The rigid fiber preform is machined to have a predetermined shape, such that a machined fiber preform is formed. A composite assembly including the machined fiber preform is formed and then the composite assembly is heated at a sufficient temperature to pyrolyze the polymer. Thus, a porous preform of a predetermined geometry is formed for further processing into a CMC.
Method of making a fiber preform for ceramic matrix composite (CMC) fabrication
STEFFIER WAYNE (Autor:in) / JACQUINTO MICHAEL (Autor:in) / HARRIS STEPHEN (Autor:in) / SHINAVSKI ROBERT (Autor:in) / ENGEL TODD (Autor:in)
14.09.2021
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
METHOD OF MAKING A FIBER PREFORM FOR CERAMIC MATRIX COMPOSITE (CMC) FABRICATION
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