Dynamic consolidation of aluminum-silicon carbide composites

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6436350

Rabin, B H; Korth, G E; Williamson, R L

Dynamic consolidation was investigated as a potential method for producing P/M metal matrix composites. In this study, 2124 aluminum powders were mixed with silicon carbide particulate and consolidated using explosives. Numerical simulations were performed to provide insight into the consolidation process and to aid in the selection of experimental conditions. The microstructure of the as-consolidated product was dependent upon processing variables. Careful control of the shock parameters allowed full density, crack free composites to be achieved in cylindrical geometries. Although full density was obtained, low fracture strengths suggested a lack of interparticle bonding, probably resulting from the limited ability to redistribute surface oxides during consolidation. 10 refs., 9 figs.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (USA)
• Sponsoring Organization: DOE/NE
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6436350
• Report Number(s): EGG-M-89129; CONF-900206--12; ON: DE91001929
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
ALUMINIUM
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
DENSITY
ELEMENTS
EXPLOSIVES
FABRICATION
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
PHYSICAL PROPERTIES
POWDERS
SILICON CARBIDES
SILICON COMPOUNDS