Accession Number : ADA188559

Title :   Plasma Joining of Metal Matrix Composites.

Descriptive Note : Interim rept. Feb-May 87,

Corporate Author : MSNW INC SAN MARCOS CA

Personal Author(s) : Reynolds, G H ; Yang, L

PDF Url : ADA188559

Report Date : Oct 1987

Pagination or Media Count : 7

Abstract : Aluminum Zirconium Silicon Carbide and Aluminum Titanium Silicon Carbide composite powder filler metals prepared for butt welding of Ai/SiC composite base plates to be used for weldment mechanical property studies are described. Two composite powder filler metal compositions were prepared in moderate quantities for use in preparation of larger scale butt welds in A1/SiC composite base plates. Each composition was designed to provide reactive metal concentrations than hav e been used previously while maintaining a two phase (A1(Zr) - A13Zr and A1(Ti) - A13Ti, respectively) matrix microstructure. This represents an attempt to maintain a reasonably ductile matrix phase while providing sufficient reactive metal concentration for suppression of interfacial A14C3 formation during plasma processing.

Descriptors :   *METAL MATRIX COMPOSITES, *ALUMINUM, *ZIRCONIUM, *TITANIUM, BUTT WELDING, COMPOSITE STRUCTURES, JOINING, MATRIX MATERIALS, MECHANICAL PROPERTIES, SILICON CARBIDES, WELDMENTS, ZIRCONIUM, POWDER METALS, PLASMA ARC WELDING, MICROPHOTOGRAPHY, POWDER METALS, PHASE TRANSFORMATIONS

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE