Effect of annealing on the structure and properties of hot-pressed boron carbide base cermets

Journal Article · Sat Feb 01 04:00:00 EST 1986 · Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States)

OSTI ID:5700532

Koval'chenko, M S; Laptev, A V; Zhidov, A B

This paper studies the effect of annealing conditions on the structure and some physicomechanical properties of boron carbidealuminum cermets produced by hot pressing under high pressures. The paper also explores the possibility of regulating the properties of such cermets by heat treatment. Cermets were produced using boron carbide powders of particle sizes up to 100 ..mu..m. As metallic binders, PA-3 aluminum powder and powders of aluminum alloys with improving wetting and adhesional interaction were employed. The microstructures of specimens were studied under an MIM-8 optical microscope. X-ray phase analysis was carried out in a URS-501M diffractometer in Cu K-alpha radiation. The authors found that to obtain boron carbidealuminum materials of maximum strength, it is necessary to perform their liquid-phase pressing under high pressures and dispense with subsequent annealing.

• Research Organization: Institute of Materials Science, Academy of Sciences of the Ukranian SSR
• OSTI ID: 5700532
• Journal Information: Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States), Journal Name: Sov. Powder Metall. Met. Ceram. (Engl. Transl.); (United States) Vol. 24:9; ISSN SPMCA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ADHESION
ALLOYS
ALUMINIUM
ALUMINIUM ALLOYS
ANNEALING
BINDERS
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CERMETS
COHERENT SCATTERING
COMPOSITE MATERIALS
CRYSTAL STRUCTURE
DESTRUCTIVE TESTING
DIFFRACTION
ELEMENTS
FABRICATION
HEAT TREATMENTS
HOT PRESSING
MATERIALS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL PROPERTIES
MECHANICAL TESTS
METALS
MICROSTRUCTURE
PRESSING
PRESSURE EFFECTS
SCATTERING
TEMPERATURE EFFECTS
TESTING
WETTABILITY
X-RAY DIFFRACTION