About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Advanced Coatings for Wear and Corrosion Protection
|
Presentation Title |
Now On-Demand Only - Combinatorial PVD Coatings on SiC-SiC for Boiling Water Reactor Conditions |
Author(s) |
Ryan Michael Schoell, Joey Kabel, Sebastian Lam, Amit Sharma, Petho Laszlo, Peter Hosemann, Djamel Kaoumi |
On-Site Speaker (Planned) |
Ryan Michael Schoell |
Abstract Scope |
A combinatorial physical vapor deposition system was used to create 1 µm coatings on SiC samples with various compositions of chromium, zirconium, and titanium. Four samples within the ternary diagram were made to test the corrosion resistance of the coatings in simulated boiling water reactor conditions (288 °C and 1100 psi with 2 ppm of dissolved oxygen). Weight changes were tracked with a high precision balance while microstructure characterization was conducted on Focused Ion Beam (FIB) samples under Transmission Electron Microscopy (TEM). Initial TEM showed the coating to be initially amorphous in its as-received state. Sample weight was monitored through several 7-day corrosion cycles. Whether weight gain or loss was observed depended on the composition. Post experiment TEM revealed changes in the coating microstructure with oxide build up. The relative corrosion resistance is discussed in terms of composition, phases formed and microstructure of the coating. |