Method of making ceramic composite bodies incorporating filler m

Details Method of making ceramic composite bodies incorporating filler m Method of making ceramic composite bodies incorporating filler m

1990-08-10

1992-03-31

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501128, 501 88, 501 92, 501 94, C04B 3502, C04B 3510, C04B 3516, C04B 3552

Patent

active

051008378

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 unbonded 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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"Oxidation of Molten Aluminum Alloys, Reaction with Refractories"-M. Drouzy and M. Richard--Mar., 1974, Fonderie, France No. 332 pp. 121-128.
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