Dynamic and static corrosion of chromium-alumina refractory in simulated nuclear waste glass

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00641786" target="_blank" >RIV/67985891:_____/25:00641786 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/25:43933322
Result on the web
<a href="https://doi.org/10.1016/j.ceramint.2025.10.255" target="_blank" >https://doi.org/10.1016/j.ceramint.2025.10.255</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2025.10.255" target="_blank" >10.1016/j.ceramint.2025.10.255</a>

Result language
angličtina
Original language name
Dynamic and static corrosion of chromium-alumina refractory in simulated nuclear waste glass
Original language description
Monofrax® K-3, a chromium–alumina refractory, is widely used in nuclear waste glass melters due to its high durability. However, aggressive vitrification conditions still lead to corrosion that limits melter lifespan. This study investigates two key corrosion modes, subsurface and melt-line corrosion, under static and dynamic conditions, using a custom setup enabling precise control of melt velocity and temperature. Experimental results, interpreted using diffusion-limited dissolution models, show that (i) subsurface corrosion increases by approximately 10 % per mm/s increase in melt velocity, while melt-line corrosion remains virtually unaffected, (ii) corrosion rate dependence on temperature is inversely proportional to melt viscosity, and (iii) glass composition affects both corrosion modes similarly, based on Cr2O3, Al2O3, and alkali contents. The experimental data also allowed the determination of diffusion coefficients of major dissolving species, which were found to be consistent between the melt-line and subsurface corrosion models, indicating their suitability for future CFD studies.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20504 - Ceramics

Project
<a href="/en/project/LUAUS23062" target="_blank" >LUAUS23062: Experimental and mathematical analysis of primary glass-forming melt properties, gas evolution, and their relation with primary foam production.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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