|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Ceramic Materials for Nuclear Energy Research and Applications
||Hydrothermal Corrosion Study of Additive Manufactured SiC Fibers
||Arunkumar Seshadri, Akshay Dave, Bren Phillips, Koroush Shirvan, Shay Harrison, Joseph Pegna
|On-Site Speaker (Planned)
SiC/SiC fiber composites are pursued as fuel cladding materials to improve the accident tolerance of light water nuclear reactors (LWR). With the advent of advanced additive manufacturing of ceramic Laser-Induced Chemical Vapor Deposition (LCVD) developed by Free Form Fiber, high purity fibers are developed with the required stoichiometric and dimensional precision. The ability of these fibers to be used in practical applications requires the knowledge of its corrosion performance in extreme environment of a LWR. In the present work, hydrothermal corrosion of commercially available carbon-rich Hi-Nicalon fibers is compared to the stoichiometric and silicon-rich fibers manufactured using LCVD. Autoclave testing was carried out at 310 °C and 14 MPa. Relative measurements based on the hydrothermal corrosion experiments reveal that LCVD fibers show good potential in terms of corrosion resistance compared to commercial fibers. The results also indicate that impact of stoichiometry is likely dominant compared to a particular manufacturing technique.
||Additive Manufacturing, Nuclear Materials, Ceramics