Physical properties of alumina-boron carbide whisker/particle composites
Conference
·
· Ceramic Engineering and Science Proceedings; (United States)
OSTI ID:5944105
The alumina-boron carbide composites were prepared by sintering and hot pressing. The mechanical properties of hot pressed alumina-boron carbide composites are better than the inherent alumina matrix. A maximum fracture toughness, of 7.26 MPa m exp 1/2 is achieved for alumina-boron carbide whisker composites as is a 47 percent increase in flexural strength. The fracture toughness is dependent on the volume fraction of boron carbide. The lower thermal expansion coefficient of the composites as a function of boron carbide whisker content is shown. 13 refs.
- OSTI ID:
- 5944105
- Report Number(s):
- CONF-910162--
- Conference Information:
- Journal Name: Ceramic Engineering and Science Proceedings; (United States) Journal Volume: 12
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
360606* -- Other Materials-- Physical Properties-- (1992-)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTALS
EXPANSION
FABRICATION
FRACTURE PROPERTIES
HOT PRESSING
MATERIALS
MATERIALS WORKING
MATRIX MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHYSICAL PROPERTIES
PRESSING
SINTERING
THERMAL EXPANSION
WHISKERS
360603 -- Materials-- Properties
360606* -- Other Materials-- Physical Properties-- (1992-)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTALS
EXPANSION
FABRICATION
FRACTURE PROPERTIES
HOT PRESSING
MATERIALS
MATERIALS WORKING
MATRIX MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHYSICAL PROPERTIES
PRESSING
SINTERING
THERMAL EXPANSION
WHISKERS