Silicon carbide whisker/alumina matrix composites; Effect of whisker surface treatment on fracture toughness

Journal Article · Wed Jan 31 23:00:00 EST 1990 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1990.tb06524.x· OSTI ID:6814440

Homeny, J ^[1]; Vaughn, W L ^[2]; Ferber, M K ^[3]

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1. Illinois Univ., Urbana, IL (USA). Dept. of Materials Science and Engineering
2. National Aeronautics and Space Administration, Hampton, VA (USA). Inst. for Computer Applications in Science and Engineering
3. Oak Ridge National Lab., TN (USA)

The fracture toughness of a 30 vol% SiC whisker/Al{sub 2}o{sub 3} matrix composite was evaluated as a function of whisker surface chemistry. Two types of SiC whiskers (Silar-Sc-9 and Tateho-SCW-1-S) were investigated. Modification of the whisker surface chemistry was achieved by subjecting the whiskers to thermal treatments under controlled atmospheres. Whisker surface chemistry, as determined by x-ray photoelectron spectroscopy, was correlated to the fracture toughness of the composites.

• DOE Contract Number: AC02-76ER01198
• OSTI ID: 6814440
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 73:2; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL COMPOSITION
COMPOSITE MATERIALS
CRYSTALS
FRACTURE PROPERTIES
MATERIALS
MECHANICAL PROPERTIES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
SILICON CARBIDES
SILICON COMPOUNDS
SPECTRA
SUPERCONDUCTING COMPOSITES
SURFACE TREATMENTS
WHISKERS
X-RAY SPECTRA