Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 557, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jnucmat.2021.153240
Keywords
Zirconium; Minor alloying element; Cladding; High-temperature X-ray diffraction; Lattice parameter
Funding
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [2017M2A8A5014754, 2021M2E3A3040094, 2021R1F1A1049832, 2021M2A7A1083127]
- National Research Foundation of Korea [2021R1F1A1049832, 2021M2A7A1083127] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study utilized in situ high-temperature X-ray diffraction to investigate the crystallographic characterization of zirconium and its alloy samples, revealing that tin element suppresses lattice thermal expansion while simulated ZIRLO shows enhanced resistance in comparison to simulated Zircaloy-4.
This study explored the crystallographic characterization of zirconium, zirconium-based samples containing minor alloying elements, simulated Zircaloy-4, and simulated ZIRLO at a temperature range of 30-870 degrees C using in situ high-temperature X-ray diffraction. The results from Pawley refinement demonstrated that the lattice thermal expansion along the a-axis direction is suppressed by the tin element, in contrast to the other minor alloying elements. Moreover, the simulated ZIRLO possesses the enhanced resistance for lattice thermal expansion compared to the simulated Zircaloy-4, indicating that a ZIRLO cladding has a better performance in suppressing the change in the lattice constants under a thermal environment. (c) 2021 Elsevier B.V. All rights reserved.
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