Method of manufacturing metal ceramic composite material

Details Method of manufacturing metal ceramic composite material Method of manufacturing metal ceramic composite material

1997-12-02

1999-08-10

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164 98, B22D 1902, B22D 1914

Patent

active

059343559

ABSTRACT:
A formed porous body of oxide ceramic and an aluminum alloy block are placed in a crucible in an atmospheric furnace, and a magnesium source is placed in another crucible in the atmospheric furnace. An argon gas is then introduced into the atmospheric furnace, which is then heated to produce a magnesium vapor from the magnesium source and melt the aluminum alloy block. Then, the argon gas is replaced with a nitrogen gas to generate magnesium nitride. The magnesium nitride reduces an oxide on surfaces of the formed porous body, exposing metal atoms on the surfaces of the formed porous body. The molten aluminum alloy permeates the formed porous body under a pressure lower or higher than the atmospheric pressure or alternate pressures lower and higher than the atmospheric pressure.

REFERENCES:
patent: 5394930 (1995-03-01), Kennerknecht
patent: 5669434 (1997-09-01), Nakao et al.
patent: 5786035 (1998-07-01), Nakao et al.

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