Method of fabricating an aluminum matrix composite and an aluminum matrix composite fabricated by the same
AssigneesAlcom, Senus Corp.
InventorsKon-Bae LEE, Jae-Pyoung AHN, Hae Sung KIM, Hyunjoo CHOI
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Abstract
The present invention is related to a method of fabricating an aluminum matrix composite by a simple process of heating a mixture of a ceramic reinforcing phase and aluminum in nitrogen containing atmosphere and an aluminum matrix composite fabricated by the same. The aluminum matrix composite may be fabricated by heating to temperatures even lower than the melting temperature of aluminum as well as to temperatures higher. The exothermic nitridation reaction contributes to the melting of the aluminum matrix and the aluminum nitride formed in-situ as a result may act as an additional reinforcing phase.
Claims23
A method for fabricating an aluminum matrix composite, comprising:
- heating a mixture of aluminum and a ceramic reinforcing phase in a nitrogen containing atmosphere.
A method for fabricating an aluminum matrix composite, comprising:
- heating a uniform mixture of aluminum powder and a ceramic powder reinforcing phase in a nitrogen containing atmosphere,
- wherein nitridation occurs in-situ at the aluminum powder surface, forming an aluminum nitride phase dispersed uniformly throughout the volume of resulting said composite,
- and further wherein temperature for said heating is 590° C. to 1000° C., and preferably 600° C. to 800° C.,
- for a duration of at least 30 minutes, and preferably 60-120 minutes of said heating.
Dependencies are inferred from the claim text.