Composite material reinforced with atomized quasicrystalline par

Details Composite material reinforced with atomized quasicrystalline par Composite material reinforced with atomized quasicrystalline par

1997-01-31

1998-12-22

Wyszomierski, George

Metal treatment

Stock

Amorphous, i.e., glassy

148438, 420538, 428614, 428650, C22C 2100

Patent

active

058513175

ABSTRACT:
A composite material comprises an aluminum or aluminum alloy matrix having generally spherical, atomized quasicrystalline aluminum-transition metal alloy reinforcement particles disposed in the matrix to improve mechanical properties. A composite article can be made by consolidating generally spherical, atomized quaiscrystalline aluminum-transition metal alloy particles and aluminum or aluminum alloy particles to form a body that is cold and/or hot reduced to form composite products, such as composite plate or sheet, with interfacial bonding between the quasicrystalline particles and the aluminum or aluminum alloy matrix without damage (e.g. cracking or shape change) of the reinforcement particles. The cold and/or hot worked compositehibits substantially improved yield strength, tensile strength, Young's modulus (stiffness).

REFERENCES:
patent: 5204191 (1993-04-01), DuBois et al.
patent: 5419789 (1995-05-01), Kita
patent: 5433978 (1995-07-01), Shibld et al.
patent: 5458700 (1995-10-01), Masumoto et al.
"Synthesis of Stable Quasicrystalline particle-dispersed Al Base Composite Alloys" J. Mater. Res, vol. 8, No. 1, Jan. 1993, Tsai et al.

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