Process for preparing self-supporting bodies and products produc

Details Process for preparing self-supporting bodies and products produc Process for preparing self-supporting bodies and products produc

1989-01-13

1989-12-05

Nelson, Peter A.

Motors: expansible chamber type

419 13, 419 17, 419 57, 75236, 75238, 75244, B22F 100

Patent

active

048851310

ABSTRACT:
Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron donor material and a carbon material. The reactive infiltration typically results in a composite comprising a boron-containing compound, a carbon-containing compound and residual metal, if desired. The mass to be infiltrated may contain one or more inert fillers admixed with the boron donor material and carbon donor material. The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal, ratios of one ceramic to another and porosity.

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