Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James Dale Steibel0
Date of Patent
May 22, 2018
0Patent Application Number
146323330
Date Filed
February 26, 2015
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for forming a ceramic matrix composite article includes forming a ceramic matrix composite substrate comprising a ceramic fiber reinforcement material in a ceramic matrix material having a first free silicon proportion by melt infiltration; forming a ceramic matrix composite outer layer comprising a ceramic fiber reinforcement material in a ceramic matrix material having a second free silicon proportion by melt infiltration or polymer impregnation pyrolysis disposed on at least a portion of the substrate. The second free silicon proportion being less than the first free silicon proportion.
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