TY - GEN
T1 - Development of zirconium-silicide coatings for accident tolerant zirconium-Alloy fuel cladding
AU - Yeom, Hwasung
AU - Maier, Ben
AU - Mariani, Robert
AU - Bai, David
AU - Xu, Peng
AU - Sridharan, Kumar
PY - 2016
Y1 - 2016
N2 - Transition metal silicide compounds are generally known for their outstanding oxidation resistance at high temperatures. In this paper, we present our initial investigations on zirconium-silicide as a potential candidate coating material for enhancing accident tolerance of zirconium- Alloy fuel cladding used in light water reactors. Results of oxidation performance of bulk ZrSi2 in ambient air at 700 °C, 1000 °C, and 1200 °C are first presented. Following this, results of oxidation tests of ZrSi2 thin film coating deposited on Zircaloy-4 test flat substrates in ambient air at 700 °C are discussed. The thin film coatings were deposited using the physical vapor deposition (PVD) method, at room temperature. Samples from the above tests were analyzed using scanning electron microscopy in conjunction with energy dispersive spectroscopy and focused-ion beam sectioning, x-ray diffraction, and xray photoelectron spectroscopy. The results clearly demonstrate the outstanding oxidation resistance of ZrSi2, while coatings of this material exhibit superior oxidation resistance compared to the uncoated Zircaloy-4.
AB - Transition metal silicide compounds are generally known for their outstanding oxidation resistance at high temperatures. In this paper, we present our initial investigations on zirconium-silicide as a potential candidate coating material for enhancing accident tolerance of zirconium- Alloy fuel cladding used in light water reactors. Results of oxidation performance of bulk ZrSi2 in ambient air at 700 °C, 1000 °C, and 1200 °C are first presented. Following this, results of oxidation tests of ZrSi2 thin film coating deposited on Zircaloy-4 test flat substrates in ambient air at 700 °C are discussed. The thin film coatings were deposited using the physical vapor deposition (PVD) method, at room temperature. Samples from the above tests were analyzed using scanning electron microscopy in conjunction with energy dispersive spectroscopy and focused-ion beam sectioning, x-ray diffraction, and xray photoelectron spectroscopy. The results clearly demonstrate the outstanding oxidation resistance of ZrSi2, while coatings of this material exhibit superior oxidation resistance compared to the uncoated Zircaloy-4.
UR - https://www.scopus.com/pages/publications/84986272566
M3 - Conference contribution
AN - SCOPUS:84986272566
T3 - International Congress on Advances in Nuclear Power Plants, ICAPP 2016
SP - 2126
EP - 2131
BT - International Congress on Advances in Nuclear Power Plants, ICAPP 2016
PB - American Nuclear Society
T2 - 2016 International Congress on Advances in Nuclear Power Plants, ICAPP 2016
Y2 - 17 April 2016 through 20 April 2016
ER -