Push-out tests on a new silicon carbide/reaction-bonded silicon carbide ceramic matrix composite
- BP Research, Cleveland, OH (United States)
- NASA Lewis Research Center, Cleveland, OH (United States)
- Carborundum Co., Niagara Falls, NY (United States)
Fiber push-out tests have been performed on a ceramic matrix composite consisting of Carborundum sintered SiC fibers, with a BN coating, embedded in a reaction-bonded SiC matrix. Analysis of the push-out data, utilizing the most complete theory presently available, shows that one of the fiber/coating/matrix interfaces has a low fracture energy (one-tenth that of the fiber) and a moderate sliding resistance [tau] [approximately] 8 MPa. The debonded sliding interface shows some continuous but minor abrasion, which appears to increase the sliding resistance, but overall the system exhibits very clean smooth sliding. The tensile response of a full-scale composite is then modeled, using data obtained here and known fiber strengths, to demonstrate the good composite behavior predicted for this material.
- OSTI ID:
- 6031746
- Journal Information:
- Journal of the American Ceramic Society; (United States), Vol. 76:9; ISSN 0002-7820
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optimization of the mechanical properties of silicon carbide-fiber-reinforced zirconia titanate matrix composites through controlled processing
Investigation of fiber/matrix interfacial mechanical behavior in ceramic matrix composites by cyclic fiber push-in testing
Related Subjects
COMPOSITE MATERIALS
TENSILE PROPERTIES
SILICON CARBIDES
BORON NITRIDES
FIBERS
INTERFACES
MATRIX MATERIALS
SLIDING FRICTION
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
FRICTION
MATERIALS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
SILICON COMPOUNDS
360603* - Materials- Properties