Accession Number : AD0767267

Title :   Fabrication of Aluminum-Graphite Composites.

Descriptive Note : Final rept. May 72-May 73,

Corporate Author : FIBER MATERIALS INC BIDDEFORD MAINE

Personal Author(s) : Pepper,Roger T. ; Penty,Robert A. ; Allen,Stephen J.

Report Date : JUL 1973

Pagination or Media Count : 50

Abstract : EEN DEVELOPED FOR MAKING COMPOSITE WIRE FROM COMMERCIALLY AVAILABLE MULTIFIBER GRAPHITE YARNS. Composite wire has been made from Thornel 50 infiltrated with A13, 220 and 6061 alloys. Aluminum alloy-graphite composite shapes have been successfully fabricated by hot-pressing the composite wire. Mechanical testing of both the composite wire and hot-pressed bars includes longitudinal and transverse tensile, flexural and compressive strengths and elastic modulus. The longitudinal tensile strength and elastic modulus of both the composite wire and hot-pressed bars approximated rule of mixtures behavior. Examination of the microstructure indicates that better transverse strength may be achieved through refinement of the matrix grain size, elimination of continuous networks of intermetallic compounds, and homogenization of the alloy constituents of the matrix. (Modified author abstract)

Descriptors :   (*COMPOSITE MATERIALS, ALUMINUM ALLOYS), (*HOT PRESSING, COMPOSITE MATERIALS), CARBON FIBERS, WIRE, MECHANICAL PROPERTIES, MICROSTRUCTURE

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE