DIFFUSION-MODEL FOR THE OXIDATION OF ZIRCONIUM AT 573-K AND 623-K

Authors
GARCIA EA KOVACS J
Citation
Ea. Garcia et J. Kovacs, DIFFUSION-MODEL FOR THE OXIDATION OF ZIRCONIUM AT 573-K AND 623-K, Journal of nuclear materials, 210(1-2), 1994, pp. 78-83
Citations number
7
Categorie Soggetti
Nuclear Sciences & Tecnology","Metallurgy & Mining","Material Science
Journal title
Journal of nuclear materials → ACNP
ISSN journal
00223115
Volume
210
Issue
1-2
Year of publication
1994
Pages
78 - 83
Database
ISI
SICI code
0022-3115(1994)210:1-2<78:DFTOOZ>2.0.ZU;2-O
Abstract
The diffusion model presented is able to describe the parabolic and cu bic behavior of the pretransition oxidation kinetics of polycrystallin e zirconium in dry oxygen during isothermal oxidation treatments at 57 3 and 623 K. The model considers that the dynamic process of crystalli zation and recrystallization during oxidation modifies the oxygen diff usion coefficient, by decreasing the number of short circuit paths in the oxide.