High temperature properties of Al[sub 2]O[sub 3]-SiC[sub w] and Si[sub 3]N[sub 4]-SiC[sub w] composites

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Scripta Metallurgica et Materialia; (United States)

DOI:https://doi.org/10.1016/0956-716X(94)90140-6· OSTI ID:7174428

Leung, S; Mehrtens, E G; Stevens, G T ^[1]; Bandyopadhyay, S; Sorrell, C C ^[2]

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1. Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales (Australia)
2. Univ. of New South Wales, Kensington (Australia). School of Materials Science and Engineering

Ceramic matrix composites (CMCs) are preferred to their monolithic ceramics particularly in high temperature applications. In CMCs, enhanced toughening is obtained through mechanisms such as crack-deflection, whisker/fiber pull-out, debonding, crack pinning and micro-cracking. In a recent paper, the authors presented preliminary results of a study of mechanical and fracture property of an Al[sub 2]O[sub 3]/SiC [sub whisker] CMC at high temperatures. Additional work has been carried out with this material as well as with a Si[sub 3]N[sub 4]/SiC[sub whisker] CMC. This paper presents the comparative performance, ie., mechanical and fracture properties of these two CMCs tested at 1,100 C and 1,200 C in an argon atmosphere.

• OSTI ID: 7174428
• Journal Information: Scripta Metallurgica et Materialia; (United States), Vol. 31:5; ISSN 0956-716X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
MECHANICAL PROPERTIES
COMPOSITE MATERIALS
SILICON CARBIDES
SILICON NITRIDES
CRACK PROPAGATION
ELASTICITY
EXPERIMENTAL DATA
FRACTURE PROPERTIES
HEAT RESISTANT MATERIALS
MICROSTRUCTURE
ALUMINIUM COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CHALCOGENIDES
DATA
INFORMATION
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SILICON COMPOUNDS
TENSILE PROPERTIES
360603* - Materials- Properties