Abstract
Tyranno SA4 grade SiC fiber is an emerging continuous fiber with excellent mechanical properties. The origin of the fiber's high-performance was studied by comparative Raman spectroscopy of four different grades of SiC fibers and reference SiC monolith. Analysis of the Raman spectra of fiber cross-sections, surface and homogeneity, and fibers under stress, revealed how differences in microstructure, such as crystalline order, size, and the presence of critical flaws, dictate mechanical properties. This information can help optimize SiC fiber manufacturing.
| Original language | English |
|---|---|
| Article number | e15032 |
| Journal | International Journal of Applied Ceramic Technology |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| State | Published - May 1 2025 |
Funding
This work was supported by the US Department of Energy, Office of Fusion Energy Sciences, Fusion Materials Program, and Early Career Research Program under contact DE-AC05-00OR22725 with UT-Battelle LLC. This research was supported in part by an appointment to the Oak Ridge National Laboratory GEM Fellow Internship Program, sponsored by the US Department of Energy and administered by the Oak Ridge Institute for Science and Education. Notice: This manuscript has been authored by UT\u2010Battelle, LLC, under contract DE\u2010AC05\u201000OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid\u2010up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe\u2010public\u2010access\u2010plan ).
Keywords
- fibers
- Raman spectroscopy
- silicon carbide