A Feasibility study of using of CeO2 as a surrogate material during investigation of UO2 thermal conductivity enhancement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU121163" target="_blank" >RIV/00216305:26620/17:PU121163 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1080/17436753.2016.1264122" target="_blank" >http://dx.doi.org/10.1080/17436753.2016.1264122</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/17436753.2016.1264122" target="_blank" >10.1080/17436753.2016.1264122</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Feasibility study of using of CeO2 as a surrogate material during investigation of UO2 thermal conductivity enhancement

Popis výsledku v původním jazyce

possible substitution of UO2 for research purposes is the cerium dioxide (CeO2) owing to its chemical and physical properties. Neutronic properties are different and fission is absent in the case of CeO2; however, similarities were studied recently to have a possibility to compare the neutronic influence of secondary additives into the matrix. This paper deals with increasing the thermal conductivity of UO2 nuclear fuel on surrogate material (CeO2); the main focus of the research is given on the sintering behaviour of CeO2. The incorporation of highly thermally conductive material (SiC) is the investigated concept of thermal conductivity enhancement. Conventional sintering and spark plasma sintering (SPS) were applied to compare the behaviour of CeO2 and UO2 reported in the literature. High temperature thermal conductivity measurements did not confirm the positive influence of SiC additive inside the CeO2 matrix mainly due to grain boundary disruptions. Similar behaviour was also previously reported for UO2 pellets with SiC.

Název v anglickém jazyce

A Feasibility study of using of CeO2 as a surrogate material during investigation of UO2 thermal conductivity enhancement

Popis výsledku anglicky

possible substitution of UO2 for research purposes is the cerium dioxide (CeO2) owing to its chemical and physical properties. Neutronic properties are different and fission is absent in the case of CeO2; however, similarities were studied recently to have a possibility to compare the neutronic influence of secondary additives into the matrix. This paper deals with increasing the thermal conductivity of UO2 nuclear fuel on surrogate material (CeO2); the main focus of the research is given on the sintering behaviour of CeO2. The incorporation of highly thermally conductive material (SiC) is the investigated concept of thermal conductivity enhancement. Conventional sintering and spark plasma sintering (SPS) were applied to compare the behaviour of CeO2 and UO2 reported in the literature. High temperature thermal conductivity measurements did not confirm the positive influence of SiC additive inside the CeO2 matrix mainly due to grain boundary disruptions. Similar behaviour was also previously reported for UO2 pellets with SiC.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Advances in Applied Ceramics

ISSN

1743-6753

e-ISSN

1743-6761

Svazek periodika

115

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

123-131

Kód UT WoS článku

000396026400001

EID výsledku v databázi Scopus

2-s2.0-85009807666