THERMAL-DECOMPOSITION KINETICS OF AMMONIUM URANYL CARBONATE

Authors
KIM EH PARK JJ PARK JH CHANG IS CHOI CS KIM SD
Citation
Eh. Kim et al., THERMAL-DECOMPOSITION KINETICS OF AMMONIUM URANYL CARBONATE, Journal of nuclear materials, 209(3), 1994, pp. 294-300
Citations number
22
Categorie Soggetti
Nuclear Sciences & Tecnology","Metallurgy & Mining","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
209
Issue
3
Year of publication
1994
Pages
294 - 300
Database
ISI
SICI code
0022-3115(1994)209:3<294:TKOAUC>2.0.ZU;2-Y
Abstract
The thermal decomposition kinetics of AUC [ammonium uranyl carbonate; (NH4)4UO2(CO3)3] in an isothermal thermogravimetric (TG) reactor under N2 atmosphere has been determined. The kinetic data can be represente d by the two-dimensional nucleation and growth mode!. The reaction rat e increases and activation energy decreases with increasing particle s ize and precipitation time which appears in the particle size larger t han 30 mum in the mechano-chemical phenomena.