Oxidation-resistant interface coatings for Nicalon/SiC composites

Conference · Mon Dec 01 00:00:00 EST 1997

OSTI ID:330665

Stinton, D P; Besmann, T M; Lowden, R A ^[1]; Liaw, P K; Shanmugham, S ^[2]

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1. Oak Ridge National Lab., TN (United States)
2. Univ. of Tennessee, Knoxville, TN (United States)

Nicalon/SiC composites with thin C and C/oxide/C interfaces were fabricated. The oxide layers, mullite and Al{sub 2}O{sub 3}-TiO{sub 2}, were deposited by a sol-gel process, while the C layer was deposited by a chemical vapor infiltration method. The fabricated composites were flexure tested in both as-processed and oxidized conditions. Composites with C and C/oxide/C interfaces retained graceful failure even after 500 h oxidation at 1000 C, but with reduced flexural strengths.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• OSTI ID: 330665
• Report Number(s): CONF-9705115-PROC.; ORNL/FMP-97/1; ON: DE98007329; TRN: IM9915%%182
• Resource Relation: Conference: 11. annual conference on fossil energy materials, Knoxville, TN (United States), 20-22 May 1997; Other Information: PBD: Dec 1997; Related Information: Is Part Of Proceedings of the eleventh annual conference on fossil energy materials; Judkins, R.R. [comp.]; PB: 419 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILICON CARBIDES
COMPOSITE MATERIALS
CORROSION RESISTANCE
OXIDATION
INTERFACES
PROTECTIVE COATINGS
MULLITE
ALUMINIUM OXIDES
TITANIUM OXIDES
CARBON
FLEXURAL STRENGTH