| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1565280 | Journal of Nuclear Materials | 2013 | 4 Pages |
Abstract
Thermal cycling and melt reaction studies of ceramic coatings plasma-sprayed on Nb substrates were carried out to evaluate the performance of barrier coatings for metallic fuel casting applications. Thermal cycling tests of the ceramic plasma-sprayed coatings to 1450 °C showed that HfN, TiC, ZrC, and Y2O3 coating had good cycling characteristics with few interconnected cracks even after 20 cycles. Interaction studies by 1550 °C melt dipping tests of the plasma-sprayed coatings also indicated that HfN and Y2O3 do not form significant reaction layer between U-20 wt.% Zr melt and the coating layer. Plasma-sprayed Y2O3 coating exhibited the most promising characteristics among HfN, TiC, ZrC, and Y2O3 coating.
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Nuclear Energy and Engineering
Authors
Ki Hwan Kim, Chong Tak Lee, Chan Bock Lee, R.S. Fielding, J.R. Kennedy,