Refractory geopolymers: Thermal shock resistant material for nuclear safety
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F24%3A00582640" target="_blank" >RIV/61388980:_____/24:00582640 - isvavai.cz</a>
Alternative codes found
RIV/26722445:_____/24:N0000045 RIV/00216208:11310/24:10478573 RIV/46356088:_____/24:N0000027
Result on the web
<a href="https://doi.org/10.1016/j.nucengdes.2024.112918" target="_blank" >https://doi.org/10.1016/j.nucengdes.2024.112918</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nucengdes.2024.112918" target="_blank" >10.1016/j.nucengdes.2024.112918</a>
Alternative languages
Result language
angličtina
Original language name
Refractory geopolymers: Thermal shock resistant material for nuclear safety
Original language description
There has been an increased interest in geopolymer materials thanks to their properties often superior to commonly used concrete. In nuclear technology, geopolymers are mostly studied for the immobilization of radioactive waste. These materials exhibit increased radiation stability, low water content and the ability to embed various filling materials to enhance or modify their physicochemical properties. Therefore, straightforward, but often omitted, applications are as sacrificial, construction or refractory materials in passive or active safety systems of NPPs. These can be helpful in increasing the nuclear power plant safety or the mitigation of severe accident consequences. Herein, we present a scoping interaction test of geopolymer material with simulated molten corium. It covers the melting of prototypic corium (diluted with sacrificial material) and its impact on the refractory geopolymer plate. The results of macro and microanalysis showed a good impaction resistance of the geopolymer, no cracking, and minimal interaction zone. Chemical interactions between the corium melt and refractory geopolymer plate were studied by scanning electron microscopy. It was found that the silicate mixture melt is enriched in magnesium content and, therefore, probably responsible for the MgO filler dissolution. The distributions of uranium and gadolinium showed limited solubility the silicate matrix and existence of their solid solution after solidification.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/TK01030130" target="_blank" >TK01030130: New inorganic material for the nuclear industry</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Engineering and Design
ISSN
0029-5493
e-ISSN
1872-759X
Volume of the periodical
418
Issue of the periodical within the volume
MAR
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
112918
UT code for WoS article
001170655700001
EID of the result in the Scopus database
2-s2.0-85183463716