Silicon carbide whisker reinforced alumina

Conference · Thu Oct 01 04:00:00 EDT 1992 · Ceramic Engineering and Science Proceedings; (United States)

OSTI ID:7039430

Wrona, B J; Rhodes, J F; Rogers, W M

Development of technology to commercially produce silicon carbide whiskers began in the early 1970s. Since then, researchers have shown that reinforcement with SiC whiskers markedly improves mechanical properties of alumina composites. By increasing fracture toughness from 2.7 MPa sq rt m for alumina to 6.6 MPa sq rt m for SiC whisker reinforced alumina, the composite is less sensitive to flaw size, resulting in improved resistance to crack growth. The improved fracture toughness, high temperature strength, and hardness has led to commercial applications such as cutting tool inserts, beverage-can forming tools, and wear resistant parts. 9 refs.

• OSTI ID: 7039430
• Report Number(s): CONF-920144--
• Conference Information: Journal Name: Ceramic Engineering and Science Proceedings; (United States) Journal Volume: 13:9-10
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
COMPOSITE MATERIALS
CRACK PROPAGATION
CRYSTALS
CUTTING TOOLS
FRACTURE PROPERTIES
HARDNESS
MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
TOOLS
USES
WEAR RESISTANCE
WHISKERS