Development of geopolymer based sacrificial materials for GEN IV severe accident mitigation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F21%3A00542512" target="_blank" >RIV/61388980:_____/21:00542512 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26722445:_____/21:N0000020 RIV/00216208:11310/21:10429231

Výsledek na webu

<a href="https://doi.org/10.1016/j.jnucmat.2021.153024" target="_blank" >https://doi.org/10.1016/j.jnucmat.2021.153024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnucmat.2021.153024" target="_blank" >10.1016/j.jnucmat.2021.153024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of geopolymer based sacrificial materials for GEN IV severe accident mitigation

Popis výsledku v původním jazyce

The development of Generation IV nuclear power plants includes the considerations about a hypothetical severe accident. Therefore, passive safety systems for severe accident mitigation can be engineered and designed as an integral part of the plant based on its needs and specifications. Presented work describes the development of geopolymer sacrificial materials for core catcher of a gas cooled fast reactor. Knowing the corium properties at the time of the reactor vessel failure we have designed a inovative sacrificial material using specific powder fillers powder (MgO, Fe2O3, Ca3(PO4)2, Al2O3, Gd2O3), which were immobilized by a silico-aluminate geopolymer matrix. The composite geopolymers were characterised by means of the solid-state analysis. Moreover, the gamma-radiation stability was examined together with the mechanical properties. We found that the geopolymer matrix can easily embed the powder fillers with high homogeneity. The mechanical properties are stable under gamma irradiation.

Název v anglickém jazyce

Development of geopolymer based sacrificial materials for GEN IV severe accident mitigation

Popis výsledku anglicky

The development of Generation IV nuclear power plants includes the considerations about a hypothetical severe accident. Therefore, passive safety systems for severe accident mitigation can be engineered and designed as an integral part of the plant based on its needs and specifications. Presented work describes the development of geopolymer sacrificial materials for core catcher of a gas cooled fast reactor. Knowing the corium properties at the time of the reactor vessel failure we have designed a inovative sacrificial material using specific powder fillers powder (MgO, Fe2O3, Ca3(PO4)2, Al2O3, Gd2O3), which were immobilized by a silico-aluminate geopolymer matrix. The composite geopolymers were characterised by means of the solid-state analysis. Moreover, the gamma-radiation stability was examined together with the mechanical properties. We found that the geopolymer matrix can easily embed the powder fillers with high homogeneity. The mechanical properties are stable under gamma irradiation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/TK01030130" target="_blank" >TK01030130: Nové anorganické materiály pro jaderný průmysl</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Nuclear Materials

ISSN

0022-3115

e-ISSN

1873-4820

Svazek periodika

553

Číslo periodika v rámci svazku

SEP

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

153024

Kód UT WoS článku

000663796000010

EID výsledku v databázi Scopus

2-s2.0-85105473755