Process for preparing self-supporting bodies and products made t

Details Process for preparing self-supporting bodies and products made t Process for preparing self-supporting bodies and products made t

1986-03-07

1988-10-11

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 2, 419 19, 419 23, 419 57, 75244, 501 96, 501 98, 264125, 264132, B22F 100

Patent

active

047770147

ABSTRACT:
Self-supporting bodies are produced by reactive infiltration of a parent metal with a boron source typically resulting in a composite comprising a parent metal boride and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron source to produce a composite by reactive infiltration, which composite comprises a matrix of metal and parent metal boride embedding the filler. The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity.

REFERENCES:
patent: 4492670 (1985-01-01), Mizrah et al.
patent: 4544524 (1985-10-01), Mizrah et al.
patent: 4585618 (1986-04-01), Fresnel et al.

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