Oxidation Behavior of SiCf/SiC Composites Modified by Layered-Y2Si2O7 in Wet Oxygen Environment
Source abstract
Abstract
SiC f /SiC composites modified by layered Y 2 Si 2 O 7 were presented in this research. Layered Y 2 Si 2 O 7 was transformed from yttrium oxide by chemical vapor infiltration process in SiC fiber preform, in which yttrium oxide was generated by the solution impregnation and pyrolysis method. Oxidation behavior of the layered-Y 2 Si 2 O 7 modified SiC f /SiC composites was studied in the wet oxygen environment at 1400 , showing that Y 2 Si 2 O 7 can concentrate on the oxidation surface to form a protective layer during the oxidation process. The bending strengths of SiC f /SiC composites with one layer or three layers of Y 2 Si 2 O 7 remain 60.38% and 71.93%, respectively, after the oxidation for 80 h.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
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References (18)
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