Reinforced composite material including a magnesium alloy matrix and grahite or carbon fibers
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United States of America Patent
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Aug 27, 1996
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N/A
app pub date -
Apr 5, 1995
filing date -
Sep 10, 1992
priority date (Note) -
Expired
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Abstract
According to the present invention, a composite material including a magnesium alloy containing zirconium with a graphite or carbon fiber reinforcement is provided. The material is prepared by infiltration of the reinforcement by a liquid magnesium alloy containing 0.3 to 1% by weight zirconium at a temperature of 650.degree. to 850.degree. C. Under these conditions, a zirconium carbide layer containing magnesium in solid solution is formed on the fibers. This results in wetting of the fibers by melted magnesium and good adhesion between the fibers and the matrix, without any deterioration in the mechanical characteristics of the fibers.
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