Polymer-Reinforced Metal Matrix Composite.

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Abstract:

This patent application discloses an invention that relates generally to metal matrix composites MMC materials, and more particularly to polymer-reinforced metal matrix composites wherein polymer filaments are formed during processing of the MMC. MMCs incorporating a less-dense reinforcing non-metal have been developed for use in low-density applications such as for aircraft components. Other improved mechanical properties are toughness, specific strength, and specific modulus of metals such as aluminum and titanium. These can be enhanced by reinforcing them with boron, carbon, or silicon carbide filaments. It is the general object of the present invention to provide a method of producing a polymer-reinforced metal matrix composite. More particularly, it is an object to provide a simple and relatively inexpensive method of producing a polymer-reinforced metal matrix composite and to provide a method of producing a polymer-reinforced metal matrix composite wherein polymer filaments or films are formed during processing. Another object is to provide a polymer-reinforced metal matrix composite which can be subsequently processed by a variety of methods. The invention is to provide an aluminum matrix composite material with reduced density, increased specific strength, enhanced damage tolerance, and increased mechanical damping capability compared to the corresponding properties of the aluminum material alone.

Author(s):
London, G. J. ; Frazier, W. E. ; Williams, J. G.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON DC
Descriptive Note:
Patent Application, Filed 19 Feb 91,
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-660 364
 Subject Terms
Communities of Interest:
Air Platforms
Descriptor(s):
AIRCRAFT EQUIPMENT, ALUMINUM, BORON, CARBON, COMPOSITE MATERIALS, DAMAGE, DAMPING, DENSITY, FILAMENTS, LOW DENSITY, MATERIALS, MATRIX MATERIALS, MECHANICAL PROPERTIES, METAL MATRIX COMPOSITES, PATENTS, POLYMERS, REDUCTION, SILICON CARBIDES, STRENGTH(GENERAL), TITANIUM, TOLERANCE, TOUGHNESS
Field(s)/Group(s):
Laminates and Composite Materials, Manufacturing and Industrial Engineering and Control of Production Systems
Keyword(s):
*Patent applications, *Metal matrix composites, Nonmetals, *Fiber reinforced composites, *Polymers, Matrix composite materials, *Processing, Strength(Mechanics), Aircraft, Hot isostatic pressing, Laminates, Cost effectiveness, Hot pressing, Isostatic pressing
Report Date:
1991 Feb 19