Interfacial properties of as-received and coated SiC (SCS-6) fiber reinforced reaction-formed SiC matrix composites
- Worcester Polytechnic Inst., MA (United States)
- NYMA, Inc., Cleveland, OH (United States)
- National Aeronautics and Space Administration, Cleveland, OH (United States). Lewis Research Center
The possibility of improving the interfacial shear strength of the SiC fiber reinforced SiC matrix composite system was examined. A ceramic fiber coating was chosen based on availability and chemical stability with the fiber and matrix. Fiber push-out tests conducted on as-received and coated fiber reinforced composite samples allowed characterization of the interfacial shear strength. Average debond shear and frictional sliding stresses were calculated. The effects of sample thickness and second phase addition in the matrix were also evaluated. Tested samples were examined by SEM to determine the location of the interfacial failure and to determine if any interface reactions had occurred. The coating was then evaluated based on the resulting interfacial shear strength, failure location, and integrity of the interface as compared to those properties of samples reinforced with as-received fibers.
- OSTI ID:
- 100576
- Report Number(s):
- CONF-941144-; ISBN 1-55899-266-9; TRN: 95:019528
- Resource Relation:
- Conference: Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 9 Dec 1994; Other Information: PBD: 1995; Related Information: Is Part Of Ceramic matrix composites -- Advanced high-temperature structural materials; Lowden, R.A.; Ferber, M.K. [eds.] [Oak Ridge National Lab., Oak Ridge, TN (United States)]; Hellmann, J.R. [ed.] [Pennsylvania State Univ., University Park, PA (United States). Center for Advanced Materials]; Chawla, K.K. [ed.] [New Mexico Inst. of Mining and Technology, Socorro, NM (United States)]; DiPietro, S.G. [ed.] [Textron Specialty Materials, Lowell, MA (United States)]; PB: 493 p.; Materials Research Society symposium proceedings, Volume 365
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMPOSITE MATERIALS
MECHANICAL PROPERTIES
INTERFACES
SILICON CARBIDES
MOLYBDENUM SILICIDES
NIOBIUM SILICIDES
SHEAR PROPERTIES
SAMPLE PREPARATION
TITANIUM BORIDES
CARBON
COATINGS
BONDING
SLIDING FRICTION
SCANNING ELECTRON MICROSCOPY
CRACKS
ION MICROPROBE ANALYSIS
MASS SPECTROSCOPY
DIFFUSION
EXPERIMENTAL DATA