High-strain-rate compression and fracture of B sub 4 C-aluminum cermets

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

OSTI ID:6658202

Blumenthal, W R

The compressive behavior of liquid-metal infiltrated boron carbide-aluminum cermets were studied as a function of strain rate, composition, and microstructure. Hopkinson split pressure bar (HSPB) and quasi-static compression tests were conducted using dumb-bell-shaped specimens. Results showed cermet compressive strength to be independent of loading rate. Strength was also found to be independent of the aluminum alloy used to infiltrate pre-sintered 65 vol % B{sub 4}C pre-forms. compositions with the smallest phase size displayed the best strength and ductility. 18 refs., 4 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: DOE/AD
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6658202
• Report Number(s): LA-UR-90-2699; CONF-9008125-5; ON: DE90016568
• Resource Relation: Conference: Explomet conference, San Diego, CA (USA), 12-17 Aug 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
COMPRESSION STRENGTH
BORON CARBIDES
CERMETS
CRACK PROPAGATION
DUCTILITY
FRACTURE PROPERTIES
IMPACT SHOCK
MICROSTRUCTURE
STRAIN RATE
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
ELEMENTS
MATERIALS
MECHANICAL PROPERTIES
METALS
TENSILE PROPERTIES
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties