Modelling thermal conductivity and self-irradiation effects in mixed oxide fuels

S. E. Lemehov; V. Sobolev; P. Van Uffelen

doi:10.1016/S0022-3115(03)00172-7

Modelling thermal conductivity and self-irradiation effects in mixed oxide fuels

S. E. Lemehov, V. Sobolev, P. Van Uffelen

Research output › peer-review

Abstract

The present paper describes a physical model for thermal conductivity of actinide oxides. The model is based on the Debye-Einstein theory of thermal energy of ionic dielectrics, on the Klemens-Callaway's approach for the heat conductance modelling and on correlations between thermoelastic properties of solids. Some results of calculations and a comparison between the calculated and measured values of the thermal conductivity of UO₂, UO₂-Gd₂O₃ and also of ThO₂, AmO₂, Am₂O₃ and Cm₂O₃, for which a limited data-set is available in the open literature, are reported. Moreover, self-irradiation effects in AmO₂, Am₂O₃, (Am,U)O_2-x, (Am,Np,U)O_2-x and Cm₂O₃ were analysed with the developed model.

Original language	English
Title of host publication	Proceedings of the 2nd Seminar on European Research on Materials for Transmutation
Publisher	Elsevier B.V.
Pages	66-76
Number of pages	11
Volume	320
Edition	1-2
DOIs	https://doi.org/10.1016/S0022-3115(03)00172-7
State	Published - Jul 2003
Event	2002 - ERMT-II: 2nd Seminar on European Research on Materials for Transmutation - Karlsruhe Duration: 26 Sep 2002 → 27 Sep 2002

Publication series

Name	Journal of Nuclear Materials
Publisher	Elsevier
Volume	320
ISSN (Print)	0022-3115
ISSN (Electronic)	1873-4820

Conference

Conference	2002 - ERMT-II
Country/Territory	Germany
City	Karlsruhe
Period	2002-09-26 → 2002-09-27

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

Access to Document

10.1016/S0022-3115(03)00172-7License: Unspecified

Cite this

@inproceedings{3c746b3d01dd41ad848f3546a56ea527,

title = "Modelling thermal conductivity and self-irradiation effects in mixed oxide fuels",

abstract = "The present paper describes a physical model for thermal conductivity of actinide oxides. The model is based on the Debye-Einstein theory of thermal energy of ionic dielectrics, on the Klemens-Callaway's approach for the heat conductance modelling and on correlations between thermoelastic properties of solids. Some results of calculations and a comparison between the calculated and measured values of the thermal conductivity of UO2, UO2-Gd2O3 and also of ThO2, AmO2, Am2O3 and Cm2O3, for which a limited data-set is available in the open literature, are reported. Moreover, self-irradiation effects in AmO2, Am2O3, (Am,U)O2-x, (Am,Np,U)O2-x and Cm2O3 were analysed with the developed model.",

keywords = "Modelling, Thermal conductivity, Irradiation effects, Mixed oxide fuels",

author = "Lemehov, {S. E.} and V. Sobolev and {Van Uffelen}, P.",

year = "2003",

month = jul,

doi = "10.1016/S0022-3115(03)00172-7",

language = "English",

volume = "320",

series = "Journal of Nuclear Materials",

publisher = "Elsevier B.V.",

pages = "66--76",

booktitle = "Proceedings of the 2nd Seminar on European Research on Materials for Transmutation",

edition = "1-2",

note = "2002 - ERMT-II : 2nd Seminar on European Research on Materials for Transmutation ; Conference date: 26-09-2002 Through 27-09-2002",

}

Lemehov, SE, Sobolev, V & Van Uffelen, P 2003, Modelling thermal conductivity and self-irradiation effects in mixed oxide fuels. in Proceedings of the 2nd Seminar on European Research on Materials for Transmutation. 1-2 edn, vol. 320, Journal of Nuclear Materials, vol. 320, Elsevier B.V., pp. 66-76, 2002 - ERMT-II, Karlsruhe, Baden-Württemberg, Germany, 2002-09-26. https://doi.org/10.1016/S0022-3115(03)00172-7

TY - GEN

T1 - Modelling thermal conductivity and self-irradiation effects in mixed oxide fuels

AU - Lemehov, S. E.

AU - Sobolev, V.

AU - Van Uffelen, P.

PY - 2003/7

Y1 - 2003/7

N2 - The present paper describes a physical model for thermal conductivity of actinide oxides. The model is based on the Debye-Einstein theory of thermal energy of ionic dielectrics, on the Klemens-Callaway's approach for the heat conductance modelling and on correlations between thermoelastic properties of solids. Some results of calculations and a comparison between the calculated and measured values of the thermal conductivity of UO2, UO2-Gd2O3 and also of ThO2, AmO2, Am2O3 and Cm2O3, for which a limited data-set is available in the open literature, are reported. Moreover, self-irradiation effects in AmO2, Am2O3, (Am,U)O2-x, (Am,Np,U)O2-x and Cm2O3 were analysed with the developed model.

AB - The present paper describes a physical model for thermal conductivity of actinide oxides. The model is based on the Debye-Einstein theory of thermal energy of ionic dielectrics, on the Klemens-Callaway's approach for the heat conductance modelling and on correlations between thermoelastic properties of solids. Some results of calculations and a comparison between the calculated and measured values of the thermal conductivity of UO2, UO2-Gd2O3 and also of ThO2, AmO2, Am2O3 and Cm2O3, for which a limited data-set is available in the open literature, are reported. Moreover, self-irradiation effects in AmO2, Am2O3, (Am,U)O2-x, (Am,Np,U)O2-x and Cm2O3 were analysed with the developed model.

KW - Modelling

KW - Thermal conductivity

KW - Irradiation effects

KW - Mixed oxide fuels

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/axs_1146352

U2 - 10.1016/S0022-3115(03)00172-7

DO - 10.1016/S0022-3115(03)00172-7

M3 - In-proceedings paper

VL - 320

T3 - Journal of Nuclear Materials

SP - 66

EP - 76

BT - Proceedings of the 2nd Seminar on European Research on Materials for Transmutation

PB - Elsevier B.V.

T2 - 2002 - ERMT-II

Y2 - 26 September 2002 through 27 September 2002

ER -