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High temperature tensile properties of unidirectional hi-nicalon/celsian composites in air
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gyekenyesi, John Z. Bansal, Narottam P. |
| Copyright Year | 2000 |
| Description | High temperature tensile properties of unidirectional BN/SiC-coated Hi-Nicalon SiC fiber reinforced celsian matrix composites have been measured from room temperature to 1200 C (2190 F) in air. Young's modulus, the first matrix cracking stress, and the ultimate strength decreased from room temperature to 1200 C (2190 F). The applicability of various micromechanical models, in predicting room temperature values of various mechanical properties for this CMC, has also been investigated. The simple rule of mixtures produced an accurate estimate of the primary composite modulus. The first matrix cracking stress estimated from ACK theory was in good agreement with the experimental value. The modified fiber bundle failure theory of Evans gave a good estimate of the ultimate strength. |
| File Size | 1166995 |
| File Format | |
| Language | English |
| Publisher Date | 2000-07-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Ceramic Matrix Composites Estimating Silicon Carbides Fiber Composites Modulus of Elasticity High Temperature Coatings Bundles Micromechanics Predictions Tensile Properties Failure Room Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
