| FFF SiC | Ni Nicalon-Type S | Sylramic | |
|---|---|---|---|
| Single fiber tensile, in GPa | 3-6 | 2-3 | 2-3 |
| Single fiber creep: @ 1500oC, 500 MPa, in air | 170 hours, no failure | 148 hours time to failure | |
| Single fiber creep: 24 hour hold at 1500C, cycle down to RT, 500 MPa, in air | 11 cycles after 100 hour hold, 364 hours total at peak temp 0.96% creep strain |
||
| Acetylene torch exposure: 1625oC, held taut across rack | > 2 1/2 hours | < 10 minutes | < 2 minutes |
Reference #1
A. Seshadri, B. Philips, A. Dave, S. Harrison, J. Pegna, and K. Shirvan,
“Hydrothermal corrosion of laser printed SiC fibers under extreme environment, Journal of Nuclear Materials”, Journal of Nuclear Materials 548, (2020), https://doi.org/10.1016/j.jnucmat.2021.152805
Reference #2:
S. Harrison, J. Schneiter, J. Pegna, E. Vaaler, R. Goduguchinta, and K. Williams, “High-Temperature Performance of Next-Generation Silicon Carbide Fibers for CMCs,” Materials Performance and Characterization 10, no. 2 (2021): 207–223. https://doi.org/10.1520/MPC20200131
Reference #3
Single Fiber Creep Performance of Silicon Carbide Materials, Americna Ceramic Society ICACC 2020 Conference, January 2020 / Mechanical Behavior Session