Experimental Behaviour of Chromium Based Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F18%3AN0000141" target="_blank" >RIV/26722445:_____/18:N0000141 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Experimental Behaviour of Chromium Based Coatings

Original language description

Accident Tolerant Fuels have been widely studied since the Fukushima accident in 2011. Deposition of protective coatings on nuclear fuel claddings has been considered as a near-term concept that will reduce the high-temperature oxidation rate of zirconium-based alloys and enhance accident tolerance of reactor cores by providing additional coping time. This study is focused on low-temperature oxidation and LOCA experimental behavior of Zr-1%Nb cladding alloys coated with Cr and CrN based layers by PVD technique. Coated and reference uncoated samples of Zr-1%Nb alloy were tested in several experiments. The presented results include standard corrosion tests at 360°C in WWER water chemistry, burst tests and mainly single and double-sided high-temperature steam oxidation between 1000 and 1400°C. Coated and reference samples were characterized pre- and post-testing using mechanical testing (microhardness, ring compression test), TEA analysis (hydrogen, oxygen measurements), optical microscopy, scanning electron microscopy (EDS, WDS, EBSD) and other techniques including X-ray diffraction. Presented at TopFuel 2018, 30 September - 04 October 2018 in Prague Czech Republic.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

<a href="/en/project/LQ1603" target="_blank" >LQ1603: Research for SUSEN</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů