Accession Number : ADA117741

Title :   An Investigation of Interfacial Reactions in Metal Matrix Composites.

Descriptive Note : Final rept. 1 Apr 80-30 Jun 81,

Corporate Author : BROWN UNIV PROVIDENCE RI DIV OF ENGINEERING

Personal Author(s) : Chin,Sung Chor ; Richman,Marc H

PDF Url : ADA117741

Report Date : Mar 1982

Pagination or Media Count : 34

Abstract : The interfacial reaction between fibre and matrix materials was studied in G/Al and FP/Mg composite systems. An intermediate layer of reaction product was necessary to prevent debonding in G/Al composites during cooling from the fabrication temperature. The intermediate layer was identified as the spinel MgAl2O4 in the FP/Mg composite and the effect of this intermediate layer was to provide good bonding and load transfer from matrix to fibre and also to form bridges (necks) cross-linking the fibres. The spinel also acted as a diffusion barrier to reduce the role of fibre degradation by interfacial reaction at service temperatures. (Author)

Descriptors :   *Composite materials, *Metals, *Matrix materials, *Interfaces, Bonding, Graphite, Aluminum, Magnesium, Fibers, Metallography, Diffusion

Subject Categories : Laminates and Composite Materials
      Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE