Method for fabricating metal matrix composite

Details Method for fabricating metal matrix composite Method for fabricating metal matrix composite

2005-02-22

2005-02-22

Mai, Ngoclan T. (Department: 1742)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

C419S008000, C419S009000, C419S049000

Reexamination Certificate

active

06858177

ABSTRACT:
The present invention provides a method for fabricating a metal matrix composite having high specific strength and stable performance and capable of fabricating at low cost, the method comprising heating a preform of metal matrix with reinforcing fiber to the temperature, which is below the high temperature region, of low temperature region or medium temperature region of the plastic deformation temperature of the metal matrix in a pressure vessel having an initial processing pressure and keeping for a predetermined time for a preparative treatment before the step of hot-isostatic-pressing the preform by keeping at a high temperature region capable of HIP treatment and of diffusing welding temperature of the metal matrix in a pressure vessel; for instance, in case metal matrix is titan or titan alloy, the preparative treatment is conducted at a preparative treatment temperature of about 300° C. to 700° C. and at a pressure in the pressure vessel of about 30 to 100 kg/cm2.

REFERENCES:
patent: 5096518 (1992-03-01), Fujikawa et al.
patent: 5579532 (1996-11-01), Edd
patent: 5897922 (1999-04-01), Saxena et al.
patent: 6122884 (2000-09-01), Talwar
patent: 7-032332 (1995-02-01), None
patent: 7-080625 (1995-03-01), None

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