Accession Number : ADD015748

Title :   Techniques For Preparation of Ingot Metallurgical Discontinuous Composites.

Descriptive Note : Patent, Filed 4 Nov 91, patented 16 Mar 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Divecha, Amarnath P ; Karmarkar, Subhash D ; Ferrando, William A ; Hoover, Scott M ; Kerr, James M

Report Date : 16 Mar 1993

Pagination or Media Count : 6

Abstract : Process for the production of ingots of castable discontinuous metal matrix composites by encapsulating particulate refractory material of the B4C or SiC in a matrix metal of Li or Al to form a solid master alloy, and introducing the master alloy into molten Mg or an alloy thereof, mixing and then cooling to solidify the resultant mixture and form an ingot with the refractory material substantially dispersed in the ingot.

Descriptors :   *PATENTS, ALLOYS, COOLING, MATERIALS, METAL MATRIX COMPOSITES, METALS, MIXING, MIXTURES, PARTICULATES, PRODUCTION, REFRACTORY MATERIALS, SOLIDS, PREPARATION, METALLURGY, BORON CARBIDES, SILICON CARBIDES, LITHIUM, ALUMINUM, MAGNESIUM

Subject Categories : Properties of Metals and Alloys
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE