- 专利标题： Ceramic matrix composite articles and methods for forming same
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申请号： US15985701申请日： 2018-05-22
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公开(公告)号： US11414354B2公开(公告)日： 2022-08-16
- 发明人: James Dale Steibel
- 申请人： GENERAL ELECTRIC COMPANY
- 申请人地址： US NY Schenectady
- 专利权人： GENERAL ELECTRIC COMPANY
- 当前专利权人： GENERAL ELECTRIC COMPANY
- 当前专利权人地址： US NY Schenectady
- 代理机构： Dority & Manning, P.A.
- 主分类号： B32B5/18
- IPC分类号： B32B5/18 ; C04B35/573 ; C04B35/515 ; C04B35/80 ; B32B7/022 ; B32B5/02 ; C23C16/02 ; C23C16/04 ; B05D3/10
摘要：
A ceramic matrix composite article includes a melt infiltration ceramic matrix composite substrate comprising a ceramic fiber reinforcement material in a ceramic matrix material having a first free silicon proportion, and a melt infiltration ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having a second free silicon proportion disposed on an outer surface of at least a portion of the substrate, or a polymer impregnation and pyrolysis ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having a second free silicon proportion disposed on an outer surface of at least a portion of the substrate. The second free silicon proportion is less than the first free silicon proportion.
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