Fabrication and properties of alumina matrix composites containing nickel aluminide reinforcements

Conference · Thu Sep 01 04:00:00 EDT 1994

OSTI ID:10182584

Alexander, K B; Lin, H T; Schneibel, J H; Becher, P F

Ductile nickel-aluminide intermetallic alloys have been successfully used to toughen ceramic materials intended for use at a wide range of temperatures. Traditional ceramic processing procedures have been used to produce a variety of microstructures. The fracture toughness increases with increasing particle aspect ratio, however, the flexural strength decreases with increasing particle size. Fracture toughnesses up to 7.6 MPa m{sup 1/2} and flexural strengths up to 550 MPa were observed in an alumina composite containing 10 vol.% nickel aluminide.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10182584
• Report Number(s): CONF-931009--30; ON: DE94018703
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203
ALUMINIUM ALLOYS
ALUMINIUM OXIDES
CERAMICS
FLEXURAL STRENGTH
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
NICKEL ALLOYS