Low-Temperature Oxidation of Fine UO2 Powders: A Process of Nanosized Domain Development

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Low-Temperature Oxidation of Fine UO2 Powders: A Process of Nanosized Domain Development. / Leinders, Gregory; Pakarinen, Janne; Delville, Rémi; Cardinaels, Thomas; Verwerft, Marc.

In: Inorganic Chemistry, Vol. 55, 25.03.2016, p. 3915-3927.

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@article{ec7205f6b1f64d6081c1495f9b7313fb,
title = "Low-Temperature Oxidation of Fine UO2 Powders: A Process of Nanosized Domain Development",
abstract = "The nanostructure and phase evolution in low-temperature oxidized (40−250 °C), fine UO2 powders ( 1) were observed. Oxidation involves formation of higher uranium oxides in nanodomains near the grain surface which, initially, have a disordered defect structure (“disordered U4O9”). As oxidation progresses, domain growth increases and the longperiod modulated structure of U4O9 develops (“ordered U4O9”). A similar mechanism is understood to happen also in U3O7−z.",
keywords = "uranium dioxide, oxidation, X-ray diffraction, transmission electron microscopy, thermal analysis",
author = "Gregory Leinders and Janne Pakarinen and R{\'e}mi Delville and Thomas Cardinaels and Marc Verwerft",
note = "score=10",
year = "2016",
month = mar,
day = "25",
doi = "10.1021/acs.inorgchem.6b00127",
language = "English",
volume = "55",
pages = "3915--3927",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "ACS - American Chemical Society",

}

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TY - JOUR

T1 - Low-Temperature Oxidation of Fine UO2 Powders: A Process of Nanosized Domain Development

AU - Leinders, Gregory

AU - Pakarinen, Janne

AU - Delville, Rémi

AU - Cardinaels, Thomas

AU - Verwerft, Marc

N1 - score=10

PY - 2016/3/25

Y1 - 2016/3/25

N2 - The nanostructure and phase evolution in low-temperature oxidized (40−250 °C), fine UO2 powders ( 1) were observed. Oxidation involves formation of higher uranium oxides in nanodomains near the grain surface which, initially, have a disordered defect structure (“disordered U4O9”). As oxidation progresses, domain growth increases and the longperiod modulated structure of U4O9 develops (“ordered U4O9”). A similar mechanism is understood to happen also in U3O7−z.

AB - The nanostructure and phase evolution in low-temperature oxidized (40−250 °C), fine UO2 powders ( 1) were observed. Oxidation involves formation of higher uranium oxides in nanodomains near the grain surface which, initially, have a disordered defect structure (“disordered U4O9”). As oxidation progresses, domain growth increases and the longperiod modulated structure of U4O9 develops (“ordered U4O9”). A similar mechanism is understood to happen also in U3O7−z.

KW - uranium dioxide

KW - oxidation

KW - X-ray diffraction

KW - transmission electron microscopy

KW - thermal analysis

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/19641550

U2 - 10.1021/acs.inorgchem.6b00127

DO - 10.1021/acs.inorgchem.6b00127

M3 - Article

VL - 55

SP - 3915

EP - 3927

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

ER -

ID: 1464353