STRUCTURAL TRANSFORMATIONS IN LEACHED URANIUM-DIOXIDE

Authors
TUROS A FALCONE R DRIGO A SAMBO A NOWICKI L MADI N JAGIELSKI J MATZKE H
Citation
A. Turos et al., STRUCTURAL TRANSFORMATIONS IN LEACHED URANIUM-DIOXIDE, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 118(1-4), 1996, pp. 659-662
Citations number
11
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
118
Issue
1-4
Year of publication
1996
Pages
659 - 662
Database
ISI
SICI code
0168-583X(1996)118:1-4<659:STILU>2.0.ZU;2-H
Abstract
The effects of water interaction with UO2 single crystals (leaching) w ere studied by means of 7.53 MeV He-4-ion channeling. Upon leaching at temperatures above 150 degrees C transformation of the surface layer into a higher oxide, namely beta-U3O7, was observed. The lattice misma tch between the bulk crystal and the transformed layer produced import ant changes in the (110) axial channeling direction. Based on these da ta and Monte Carlo channeling simulations a model structure of the tra nsformed layer was developed.