About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-84: Evaluation of Oxidation Behavior of Ultra-High-Temperature Ceramics by Laser Ablation |
| Author(s) |
Geon Kim, Byungheon Oh, Jio Yoon, Dongju Lee |
| On-Site Speaker (Planned) |
Byungheon Oh |
| Abstract Scope |
Ultra-high-temperature ceramics (UHTCs) exhibit excellent oxidation and ablation resistance at temperatures exceeding 2000 °C, making them promising candidates for extreme-environment applications. Under high-temperature exposure, UHTCs form surface oxide layers that act as protective barriers by suppressing inward oxygen diffusion and reducing further material degradation. The formation, stability, and evolution of these oxide layers therefore play a critical role in determining the oxidation resistance and long-term reliability of UHTCs, highlighting the importance of a detailed understanding of their oxidation behavior.
In this study, the oxidation behavior of UHTCs was systematically evaluated using laser ablation under various test environments. Laser ablation enables localized ultra-high-temperature exposure while allowing precise control of ablation conditions and the surrounding atmosphere, providing an effective platform for investigating environment-dependent oxidation behavior. By comparing oxidation and ablation responses under different test environments, the influence of testing conditions on oxide layer formation and degradation was analyzed. |
| Proceedings Inclusion? |
Undecided |