About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advanced Coatings for Wear and Corrosion Protection
|
| Presentation Title |
Polymer Derived SiON Coating for Alleviating Chloride Induced Stress Corrosion Cracking of 304 Stainless Steel |
| Author(s) |
Hyeon Joon Choi, Kathy Lu |
| On-Site Speaker (Planned) |
Hyeon Joon Choi |
| Abstract Scope |
Stress Corrosion Cracking (SCC) in stainless steel spent nuclear fuel (SNF) canisters poses a significant threat, prompting active research into coating materials such as polymers and ceramics to mitigate it. SiON coating can enhance the corrosion resistance of SNF canisters, thereby extending their lifespan. Perhydropolysilazane(PHPS) utilized in this study can transform to ceramic SiON through pyrolysis. Coating samples were pyrolyzed at various temperatures to produce polymer, ceramic, and intermediate SiON samples. The performance of the formed coatings was assessed using a boiling magnesium chloride solution at 155°C. Investigation into changes in microstructure before and after corrosion tests allowed for the evaluation of the corrosion resistance of each phase and assessed the suitability of the coating material for protecting SNF canisters. |