METHOD FOR PREPARING ALUMINUM MATRIX COMPOSITE USING NO PRESSURE INFILTRATION
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United States of America Patent
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Aug 6, 2015
app pub date -
Aug 21, 2013
filing date -
Sep 6, 2012
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Abstract
The present invention provides a method for preparing an aluminum matrix composite by infiltrating aluminum into a preform within a short period of time without a pressurization configuration using a special device as compared to the existing pressure infiltration method. According to one aspect of the present invention, provided is a method for preparing an aluminum matrix composite using pressureless infiltration, the method including: preparing a preform formed of a mixture of raw powders capable of forming ceramic through a combustion synthesis reaction; immersing the preform in an aluminum melt, in which a part of the preform is exposed to an external environment without being immersed in the aluminum melt; and infiltrating molten aluminum into the preform while causing a combustion synthesis reaction in the preform.
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