Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1993-08-11
1995-04-04
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428284, 428294, 428298, 428302, 428367, 428408, 428416, 428902, 428283, B32B 1500
Patent
active
054036534
ABSTRACT:
The stiffness of materials formed from aluminum alloy sheets laminated with layers of long aligned fibers embedded in a matrix of resin material is enhanced by reinforcing the aluminum alloy component with ceramic particles or whiskers. Use of stiff fibers such as carbon, aramid, alumina, silicon carbide or mixtures of these enables the stiffness of the fiber/resin component to be matched to that of the metal/ceramic component. This results in good fatigue crack growth resistance in the finished laminate, even for short crack lengths. In a preferred laminate, the metal/ceramic component is formed with a matrix of aluminum-lithium alloy. Such alloys are inherently stiffer than alloys without lithium, with the result that the increased stiffness obtained from ceramic reinforcement is enhanced stiff further.
REFERENCES:
patent: 4888247 (1989-12-01), Zweben et al.
patent: 4935291 (1990-06-01), Gunnick
patent: 5153057 (1992-10-01), Corbett et al.
C. J. Peel et al: "Some Developments in the Performance of Lightweight Aerospace et al": 29 May 1991: pp. 191, 193 & 201.
Bull. Mater. Sci. vol. 13, No. 5, Dec. 1990, Bangalore pp. 305-311. "Preparation and Characterization of Aluminium Alloy Sheet Aramid et al".
Applied Materials Reserach, Oct. 1963, Forsyth et al, pp. 223-228 "Some Preliminary Tests on Aluminium Alloy Sheets Reinforced et al".
Moreton Roger
Peel Christopher J.
Bell James J.
The Secretary of State for Defence in Her British Majesty's Gove
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