The solution and diffusion of ruthenium in UO2±x

被引：22

作者：

Busker, G

Grimes, RW ^{[1
]}

Bradford, MR

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] British Energy Generat Ltd, Barnwood GL4 3RS, Glos, England

来源：

JOURNAL OF NUCLEAR MATERIALS | 2003年 / 312卷 / 2-3期

关键词：

D O I：

10.1016/S0022-3115(02)01591-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Atomic scale computer simulation is used to develop models that describe the behaviour of ruthenium in the uranium dioxide lattice. Results are consistent with observed metal particle formation in UO2-x and UO2. Conversely it is predicted that ruthenium can be soluble in UO2+x although in irradiated fuel the extent of ruthenium solution will depend on the total concentration of fission products compared to the oxygen interstitial ion concentration. Second phase oxide particles such as BaRuO3 and RuO2 are not predicted to be stable. At all stoichiometries activation energies for migration are high. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：156 / 162

页数：7

共 29 条

[1] Structural studies of rutile-type metal dioxides [J].

Bolzan, AA ;

Fong, C ;

Kennedy, BJ ;

Howard, CJ .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 1997, 53 :373-380

[2]

BORN M, 1923, ATOMTHEORIE FESTEN Z

[3]

Bradford MR, 1996, NUCL ENERG-J BR NUCL, V35, P321

[4]

Brewer L., 1969, ADVANCES HIGH TEMPER, V2, P1

[5] The diffusion of iodine and caesium in the UO2±x lattice [J].

Busker, G ;

Grimes, RW ;

Bradford, MR .

JOURNAL OF NUCLEAR MATERIALS, 2000, 279 (01) :46-50

[6]

BUSKER G, 2002, THESIS U LONDON

[7]

CATLOW CRA, 1982, COMPUTER SIMULATION

[8]

Cordfunke E.H.P., 1990, THERMOCHEMICAL DATA

[9] THEORY OF THE DIELECTRIC CONSTANTS OF ALKALI HALIDE CRYSTALS [J].

DICK, BG ;

OVERHAUSER, AW .

PHYSICAL REVIEW, 1958, 112 (01) :90-103

[10] CRYSTAL STRUCTURE OF BARIUM RUTHENIUM OXIDE AND RELATED COMPOUNDS [J].

DONOHUE, PC ;

KATZ, L ;

WARD, R .

INORGANIC CHEMISTRY, 1965, 4 (03) :306-&

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