Method for preparing a fiber reinforced metal matrix using micro

Details Method for preparing a fiber reinforced metal matrix using micro Method for preparing a fiber reinforced metal matrix using micro

1976-01-08

1977-11-29

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75226, 75DIG1, 29419R, 264332, B22F 300

Patent

active

040604128

ABSTRACT:
Microscopic fibers are mixed with a metal powder to provide a nonuniform mixture with randomly oriented fibers having metal particles adhered thereto. This mixture is extruded at room temperature at least three times, and is then placed in a die cavity and subjected to a first pressure at room temperature. While adding no additional pressure, the die cavity is heated to bring the mixture to a temperature above the solidus of the metal powder, and the volume of the die cavity is decreased to at least the theoretical volume necessary to receive the mixture if the mixture included no voids. The die cavity is then cooled and the resultant billet ejected therefrom.

REFERENCES:
patent: 3441392 (1969-04-01), Divecha et al.
patent: 3471270 (1969-10-01), Carlson
patent: 3833697 (1974-09-01), Lare et al.
Hamby, DMIC Review of Recent Development, 10-8-69.
Divecha, et al., Technical Report, AFML-TR-69-7, May, 1969.

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