B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/175, 261/37,
B22D 19/02 (2006.01) C22C 49/06 (2006.01)
Patent
CA 1055733
ABSTRACT OF THE DISCLOSURE A composite reinforced with polycrystalline alumina fibers in a matrix of an aluminum alloy containing 0.5-5.5% by weight of the matrix of lithium is prepared by infiltrating alumina fibers with a molten alloy containing aluminum and 1-8% by weight of lithium for a time sufficient to form a reaction sheath on the fibers of a thickness less than about 15% of the total fiber diameter. Composites of the invention are useful as structural members in applications that require strong, stiff and light- weight members, such as in aircrafts and missiles, as well as in high temperatures applications such as aircraft engines and turbines.
239348
Dhingra Ashok K.
Krueger William H.
Riewald Paul G.
E.i. Du Pont de Nemours And Company
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