Standard

Oxygen diffusion in uranium dioxide in the temperature range of phase transitions. / Kupryazhkin, A. ya.; Zhiganov, A. n.; Risovanyi, D. v. et al.
In: Technical Physics, Vol. 49, No. 2, 01.02.2004, p. 254-257.

Research output: Contribution to journal › Article › peer-review

Harvard

Kupryazhkin, AY, Zhiganov, AN, Risovanyi, DV, Risovanyi, VD & Golovanov, VN 2004, 'Oxygen diffusion in uranium dioxide in the temperature range of phase transitions', Technical Physics, vol. 49, no. 2, pp. 254-257. https://doi.org/10.1134/1.1648965

APA

Kupryazhkin, A. Y., Zhiganov, A. N., Risovanyi, D. V., Risovanyi, V. D., & Golovanov, V. N. (2004). Oxygen diffusion in uranium dioxide in the temperature range of phase transitions. Technical Physics, 49(2), 254-257. https://doi.org/10.1134/1.1648965

Vancouver

Kupryazhkin AY, Zhiganov AN, Risovanyi DV, Risovanyi VD, Golovanov VN. Oxygen diffusion in uranium dioxide in the temperature range of phase transitions. Technical Physics. 2004 Feb 1;49(2):254-257. doi: 10.1134/1.1648965

Author

Kupryazhkin, A. ya. ; Zhiganov, A. n. ; Risovanyi, D. v. et al. / Oxygen diffusion in uranium dioxide in the temperature range of phase transitions. In: Technical Physics. 2004 ; Vol. 49, No. 2. pp. 254-257.

BibTeX

@article{e2baac9c6ae04dcc8256683f2a80c863,
title = "Oxygen diffusion in uranium dioxide in the temperature range of phase transitions",
abstract = "The structure of and oxygen diffusion in UO2 are studied by the molecular dynamics method in the range of transition to the superionic state (melting of the oxygen sublattice) and near the melting point of UO 2. The temperature dependence of the diffusion coefficient of a doubly charged oxygen ion in UO2 is constructed. In the crystalline state at temperatures between 1800 and 2600 K, this dependence is described by an exponential dependence with a diffusion activation energy of 2.6 ± 0. 2 eV. In the superionic state (2600-3100 K), the activation energy of diffusion of an oxygen anion decreases to 1.88 ± 0.13 eV. In melt (3100-3600 K), the exponential dependence of the diffusion coefficient of O2- persists but the activation energy of diffusion decreases still further, to 0.8 ± 0.2 eV. Our experimental results agree (within the limits of experimental error) with data on oxygen diffusion in the crystalline phase obtained by other researchers.",
author = "Kupryazhkin, {A. ya.} and Zhiganov, {A. n.} and Risovanyi, {D. v.} and Risovanyi, {V. d.} and Golovanov, {V. n.}",
year = "2004",
month = feb,
day = "1",
doi = "10.1134/1.1648965",
language = "English",
volume = "49",
pages = "254--257",
journal = "Technical Physics",
issn = "1063-7842",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

RIS

TY - JOUR

T1 - Oxygen diffusion in uranium dioxide in the temperature range of phase transitions

AU - Kupryazhkin, A. ya.

AU - Zhiganov, A. n.

AU - Risovanyi, D. v.

AU - Risovanyi, V. d.

AU - Golovanov, V. n.

PY - 2004/2/1

Y1 - 2004/2/1

N2 - The structure of and oxygen diffusion in UO2 are studied by the molecular dynamics method in the range of transition to the superionic state (melting of the oxygen sublattice) and near the melting point of UO 2. The temperature dependence of the diffusion coefficient of a doubly charged oxygen ion in UO2 is constructed. In the crystalline state at temperatures between 1800 and 2600 K, this dependence is described by an exponential dependence with a diffusion activation energy of 2.6 ± 0. 2 eV. In the superionic state (2600-3100 K), the activation energy of diffusion of an oxygen anion decreases to 1.88 ± 0.13 eV. In melt (3100-3600 K), the exponential dependence of the diffusion coefficient of O2- persists but the activation energy of diffusion decreases still further, to 0.8 ± 0.2 eV. Our experimental results agree (within the limits of experimental error) with data on oxygen diffusion in the crystalline phase obtained by other researchers.

AB - The structure of and oxygen diffusion in UO2 are studied by the molecular dynamics method in the range of transition to the superionic state (melting of the oxygen sublattice) and near the melting point of UO 2. The temperature dependence of the diffusion coefficient of a doubly charged oxygen ion in UO2 is constructed. In the crystalline state at temperatures between 1800 and 2600 K, this dependence is described by an exponential dependence with a diffusion activation energy of 2.6 ± 0. 2 eV. In the superionic state (2600-3100 K), the activation energy of diffusion of an oxygen anion decreases to 1.88 ± 0.13 eV. In melt (3100-3600 K), the exponential dependence of the diffusion coefficient of O2- persists but the activation energy of diffusion decreases still further, to 0.8 ± 0.2 eV. Our experimental results agree (within the limits of experimental error) with data on oxygen diffusion in the crystalline phase obtained by other researchers.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000188881600018

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=1542613241

U2 - 10.1134/1.1648965

DO - 10.1134/1.1648965

M3 - Article

VL - 49

SP - 254

EP - 257

JO - Technical Physics

JF - Technical Physics

SN - 1063-7842

IS - 2

ER -

ID: 43422520