Sökning: WFRF:(Hansson Niklas 1992) >
XPS study of extern...
XPS study of external α-radiolytic oxidation of UO2 in the presence of argon or hydrogen
-
- Hansson, Niklas, 1992 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Tam, Eric, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Ekberg, Christian, 1967 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
-
visa fler...
-
- Spahiu, Kastriot, 1951 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Svensk Kärnbränslehantering AB (SKB),Swedish Nuclear Fuel and Waste Management Company (SKB)
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
-
Ingår i: Journal of Nuclear Materials. - : Elsevier BV. - 0022-3115. ; 543
- Relaterad länk:
-
https://research.cha... (primary) (free)
-
visa fler...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://research.cha...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- UO2 pellets exposed to 1.85 MBq and 3.30 MBq Am-241 sources with a 30 μm separation in solution were studied under Ar and H2 atmospheres. The 1.85 MBq Am-241 source was shown to have a too low radiolytic production to cause any measurable change in UO2 surface oxidation state. However, a significant oxidation was observed after exposure to the 3.30 MBq source under Ar atmosphere through the production of U(V), as seen from the U4f7/2-peak deconvolution and valence band peak analysis. The H2 atmosphere was shown to suppress the oxidation of the UO2 pellet surface as well as the dissolution in both Milli-Q and NaHCO3 solutions. The dissolved uranium concentration was reduced by a factor 10 under H2 atmosphere as compared to the Ar atmosphere experiments.
Ämnesord
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- UO2
- hydrogen effect
- dissolution
- oxidation
- x-ray photoelectron spectroscopy
- radiolysis
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas