The effect of fission-energy Xe ion irradiation on dissolution of UO2 thin films / Popel Aleksej J.,Petrov Vladimir G.,Lebedev Vasily A.,Day Jason,Kalmykov Stepan N.,Springell Ross,Scott Thomas B.,Farnan Ian // JOURNAL OF ALLOYS AND COMPOUNDS. - 2017. - V. 721, l. . - P. 586-592.

ISSN/EISSN:

0925-8388 / 1873-4669

Type:

Article

Abstract:

The aim of this work was to study the effect of fission fragment damage on the dissolution of UO2 thin films in water. For this purpose, thin films of UO2 on LSAT (Al10La3O51Sr14Ta7) substrates were produced and irradiated by 92 MeV (129)xe(23+)ions to a fluence of 4.8 x 10(15) ions/cm(2) to simulate the fission damage and induce chemical mixing that occur within nuclear fuels. The dissolution experiment was conducted under a nitrogen atmosphere (200-900 O-2 ppm in N-2) to study the effect of the induced irradiation damage and mixing on the dissolution of the UO2 matrix. The irradiated samples showed a decrease in the amount of dissolved uranium, as compared to the corresponding unirradiated samples. This was ascribed to the irradiation-induced chemical mixing of the UO2 films with the substrate elements, which resulted in stabilisation of the UO2 matrix and increased its aqueous durability. Secondary phases were also observed on the surface of the UO2 films after the dissolution experiment. (C) 2017 The Authors. Published by Elsevier B.V.

Author keywords:

UO2; Ion irradiation; Radiation damage; Ion-beam-induced mixing; Dissolution; Secondary phases HIGH BURN-UP; SPENT NUCLEAR-FUEL; WASTE-DISPOSAL CONDITIONS; LOCAL CORROSION KINETICS; URANIUM-DIOXIDE; MICROSTRUCTURAL EVOLUTION; THERMAL-CONDUCTIVITY; ELECTRON-MICROSCOPY; REDUCING CONDITIONS; RADIATION-DAMAGE

DOI:

10.1016/j.jallcom.2017.05.084

Web of Science ID:

ISI:000405252400066

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	OCT 15
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1873-4669
Keywords-Plus	HIGH BURN-UP; SPENT NUCLEAR-FUEL; WASTE-DISPOSAL CONDITIONS; LOCAL CORROSION KINETICS; URANIUM-DIOXIDE; MICROSTRUCTURAL EVOLUTION; THERMAL-CONDUCTIVITY; ELECTRON-MICROSCOPY; REDUCING CONDITIONS; RADIATION-DAMAGE
Research-Areas	Chemistry; Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
Author-Email	apopel@cantab.net
ResearcherID-Numbers	Petrov, Vladimir/I-6839-2013
ORCID-Numbers	Petrov, Vladimir/0000-0001-6071-8127 Popel, Aleksej/0000-0003-4436-9961
Funding-Acknowledgement	French Network EMIR; M.V.Lomonosov Moscow State University Program of Development; UK EPSRC {[}EP/I036400/1]; Radioactive Waste Management Ltd {[}NP0004411A-EPS02]; Russian Foundation for Basic Research {[}13-03-90916]; CSAR bursary
Funding-Text	The irradiation experiment was performed at the Grand Accelerateur National d'Ions Lourds (GANIL) Caen, France, and supported by the French Network EMIR. The support in planning and execution of the experiment by the CIMAP-CIRIL staff and the GANIL technical staff, especially, I. Monnet, C. Grygiel, T. Madi and F. Durantel, is much appreciated. Thanks also go to O.N. Batuk for fruitful discussions on UO2 dissolution. AFM, SEM and EDX experiments were performed with support of M.V.Lomonosov Moscow State University Program of Development. A.J. Popel acknowledges funding from the UK EPSRC (grant EP/I036400/1) and Radioactive Waste Management Ltd (formerly the Radioactive Waste Management Directorate of the UK Nuclear Decommissioning Authority, contract NP0004411A-EPS02), a maintenance grant from the Russian Foundation for Basic Research (projects 13-03-90916) and CSAR bursary.
Number-of-Cited-References	63
Usage-Count-Last-180-days	10
Usage-Count-Since-2013	10
Journal-ISO	J. Alloy. Compd.
Doc-Delivery-Number	FA2EA