Accession Number : AD0847651

Title :   The Study of Extrusion as a Method for Fabricating Metal Matrix Composites,

Corporate Author : MONSANTO RESEARCH CORP ST LOUIS MO

Personal Author(s) : Schierding, Royce G.

Report Date : JAN 1969

Pagination or Media Count : 34

Abstract : Extrusion has been investigated as a method for fabricating metal matrix composites. The matrix was aluminum and the fibers were discontinuous boron, graphite and stainless steel and -SiC whiskers. Mixtures of aluminum flake and discontinuous fibers were extruded at temperatures exceeding 600C and at extrusion pressures of 30 - 90 ksi. The extrudate showed a high degree of fiber orientation as well as extensive fiber damage. Some strengthening and stiffening were obtained at the 10 v/o loading level. Fiber damage appears to be the major limitation of the powder metallurgy approach to extrusion. (Author)

Descriptors :   (*POWDER METALLURGY, COMPOSITE MATERIALS), (*COMPOSITE MATERIALS, EXTRUSION), WHISKERS(CRYSTALS), ALUMINUM ALLOYS, BORON, GRAPHITE, STAINLESS STEEL, SILICON CARBIDES, FILAMENTS, PARTICLE SIZE, COMPACTING, ISOTROPISM, PHOTOMICROGRAPHY, DEFECTS(MATERIALS).

Subject Categories : Laminates and Composite Materials
      Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE