Dense, finely, grained composite materials

Details Dense, finely, grained composite materials Dense, finely, grained composite materials

1989-09-26

1990-08-07

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 17, 419 45, 419 63, 419 38, 419 39, B22F 100

Patent

active

049466437

ABSTRACT:
Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

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