Detail publikačního výsledku

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

ROLEČEK, J.; FORAL, Š.; KATOVSKÝ, K.; SALAMON, D.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

CeO2; SiC; nuclear fuel; surrogate material; thermal conductivity enhancement; spark plasma sintering

Klíčová slova v angličtině

CeO2; SiC; nuclear fuel; surrogate material; thermal conductivity enhancement; spark plasma sintering

Autoři

ROLEČEK, J.; FORAL, Š.; KATOVSKÝ, K.; SALAMON, D.

Rok RIV

2018

Vydáno

03.04.2017

Nakladatel

Taylor & Francis

ISSN

1743-6753

Periodikum

Advances in Applied Ceramics

Svazek

115

Číslo

8

Stát

Spojené království Velké Británie a Severního Irska

Strany od

123

Strany do

131

Strany počet

9

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT130018,
  author="Jakub {Roleček} and Štěpán {Foral} and Karel {Katovský} and David {Salamon}",
  title="A Feasibility study of using of CeO2 as a surrogate material during investigation of UO2 thermal conductivity enhancement",
  journal="Advances in Applied Ceramics",
  year="2017",
  volume="115",
  number="8",
  pages="123--131",
  doi="10.1080/17436753.2016.1264122",
  issn="1743-6753"
}