Mechanical property characterization of fiber-reinforced SiC matrix composites
Mechanical properties of Nicalon-fiber-reinforced silicon carbide (SiC) matrix composites fabricated by a forced chemical vapor infiltration (CVI) process have been measured and compared with properties of composites fabricated by a conventional isothermal process. The mechanical properties are nearly identical for composites fabricated by the two processes provided that hot-face temperatures <1200{degree}C are used for the forced CVI process. Composites reinforced with more stable Tyranno fibers were fabricated by forced CVI and exhibited room temperature mechanical properties similar to those of Nicalon-reinforced composites and improved high-temperature strengths. 18 refs., 4 figs., 3 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7159210
- Report Number(s):
- CONF-900546-3; ON: DE90011316
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601 -- Other Materials-- Preparation & Manufacture
360603* -- Materials-- Properties
CARBIDES
CARBON COMPOUNDS
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
CONVERSION
CORRELATIONS
DEPOSITION
ENERGY SOURCES
FABRICATION
FLEXURAL STRENGTH
FOSSIL FUELS
FRACTURE PROPERTIES
FUELS
HOT GAS CLEANUP
MATERIALS
MECHANICAL PROPERTIES
PURIFICATION
SILICON CARBIDES
SILICON COMPOUNDS
SURFACE COATING
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS