Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Using organometallic or organosilicon intermediate
Reexamination Certificate
2008-01-15
2008-01-15
Lopez, Carlos (Department: 1731)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
Using organometallic or organosilicon intermediate
C264S640000, C264S641000, C264S642000
Reexamination Certificate
active
10478797
ABSTRACT:
A preformed of SiC fiber, which is coated with one or more of C, BN and SiC, is impregnated with a slurry, which suspends fine SiC powder and a sintering additive therein. The impregnated preform is hot-pressed at 1600-1800° C. with a pressure of 10 MPa or more. The sintering additive may be one or more of Al2O3, Y2O3, SiO2and CaO. The slurry may futher contain a silicone polymer selected from polycarbosilane, polyvinylsilane and polymethylsilane. Reaction of SiC fiber with a matrix is inhibited by the coating, so as to manufacture a SiC fiber-reinforced SiC-matrix composite remarkably improved in mechanical properties.
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Katoh Yutai
Kohyama Akira
Japan Science and Technology Corporation
Lopez Carlos
The Webb Law Firm
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