Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1992-03-30
1993-02-09
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501127, 501 92, 501 96, 501 97, C04B 3552, C04B 3556, C04B 3558, C04B 3510
Patent
active
051852985
ABSTRACT:
The present invention relates to a method of forming ceramic matrix composite bodies comprising a parent metal reacting with an oxidant to produce an oxidation reaction product which infiltrates a loose unbounded mass or a preform comprising a filler material mixture. Specifically, the filler material mixture used in the method of the present invention comprises a material having varying compositions, sizes and/or shapes of filler material within the mass or preform. By utilizing a filler possessing varying compositions, sizes and/or shapes, enhanced packing of the filler material is achieved which may result in improved properties, such as erosion resistance, corrosion resistance, etc. Further, the use of filler material containing varying sizes and/or shapes may also enhance the growth rate of oxidation reaction product, thereby reducing processing times for formation of the resultant ceramic composite body.
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Bell Mark L.
Lanxide Technology Company, LP
Lewis Carol A.
Mortenson Mark G.
Wright Alan
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