Properties of SiC whisker-reinforced oxide matrix composites

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7061515

Tiegs, T

Development of SiC whisker-reinforced alumina and mullite composites is discussed. Improved mechanical properties are observed for the composites as compared for the monolithic materials. Near-net-shape fabrication by pressureless sintering is limited by the SiC whisker content and the practical limit to achieve high densities is about 20 vol%. Limited bonding at the matrix-whisker interface is necessary for high toughness composites. The surface chemistry of the whiskers has been found to be an important parameter in determining that bond strength. 15 refs., 3 figs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7061515
• Report Number(s): CONF-8806103-5; ON: DE89002204
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
360603* -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CRYSTALS
FABRICATION
FRACTURE PROPERTIES
HOT PRESSING
MATERIALS WORKING
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PRESSING
SILICON CARBIDES
SILICON COMPOUNDS
SINTERING
WHISKERS