Semi-integral LOCA test of cold-spray chromium coated zircaloy-4 accident tolerant fuel cladding
| Autor: | E. Pouillier, J. Hazan, Koroush Shirvan, A. Gauthier |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Nuclear and High Energy Physics
Materials science Nuclear engineering Zirconium alloy Gas dynamic cold spray Evolutionary change chemistry.chemical_element Cladding (fiber optics) law.invention Chromium Fukushima daiichi Nuclear Energy and Engineering chemistry law Nuclear power plant General Materials Science Loss-of-coolant accident |
| Zdroj: | Journal of Nuclear Materials. 550:152940 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/j.jnucmat.2021.152940 |
| Popis: | Enhancing the accident tolerance of PWRs came under serious consideration following the 2011 Fukushima Daiichi nuclear power plant events. While the current nuclear fuels are based on mature technology and have an excellent operational record, further enhancing their strength through accident tolerant fuel (ATF) research and development continues to be of interest. Particularly, the chromium coated clad ATF technology represents an evolutionary change to improve the high temperature performance of existing Zircaloy claddings. Despite several years of investigation of coated cladding, the integral loss of coolant accident (LOCA) performance of chromium coated cladding has had little attention. In this work, cold-spray chromium coated zircaloy-4 claddings are evaluated using EDF's semi-integral LOCA test facility. Results show that the chromium coating induces a reduced ballooning and burst and an increased burst temperature in the investigated conditions. However, these tests exhibit limited benefits concerning the post-quench behavior of the coated specimens which occurs in the last stage of a prototypical LOCA scenario. |
| Databáze: | OpenAIRE |
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