Citation
Jm. Fulconis et al., CRTA study of the reduction of UO2F2 into UO2 by dry H-2, J THERM ANA, 56(3), 1999, pp. 1443-1446
Citations number
6
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150
→ ACNP
Volume
56
Issue
3
Year of publication
1999
Pages
1443 - 1446
Database
ISI
SICI code
1388-6150(1999)56:3<1443:CSOTRO>2.0.ZU;2-#
Abstract
The reduction of UO2F2 by dry H-2 was studied by Controlled Rate EGA, with
a special set-up operating under a gas flow under atmospheric pressure. At
the constant transformation rate selected, this reduction apparently takes
place in one main step, around 450 degrees C (for a total duration of 100 h
), followed by a small exothermic step. The final product is a stoichiometr
ic, well crystallized UO2. XRD analysis shows the occurrence of two success
ive intermediates of which one has a structure close to that of UO2, but wi
th interstitial fluorine atoms.