Toughening behavior in SiC whisker reinforced alumina

Conference · Fri Dec 31 23:00:00 EST 1982

OSTI ID:6466587

Becher, P F; Wei, G C

The development of hot-pressed, SiC whisker reinforced alumina has resulted in composites with fracture toughness values of up to 8.7 MPa m/sup 1/2/. Whisker orientation during processing leads to anisotropy in both fracture toughness and fracture strengths. Fracture strengths are also limited by the ability to disperse the SiC whiskers; however, use of both fine alumina powders and ultrasonic dispersion techniques yields strengths of up to 800 MPa.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6466587
• Report Number(s): CONF-8310105-1; ON: DE85002454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360303* -- Composite Materials-- Mechanical Properties-- (-1987)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRYSTALS
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
WHISKERS