Published June 1994 | Version v1
Journal article Metadata-only

Diffusion model for the oxidation of zirconium at 573 and 623 K

Creators

  • 1. Dpto. Combustibles Nucleares, Comision Nacional de Energia Atomica, Avda. Libertador 8250, 1429 Buenos Aires (Argentina)

Description

The diffusion model presented is able to describe the parabolic and cubic behavior of the pretransition oxidation kinetics of polycrystalline zirconium in dry oxygen during isothermal oxidation treatments at 573 and 623 K. The model considers that the dynamic process of crystallization and recrystallization during oxidation modifies the oxygen diffusion coefficient, by decreasing the number of short circuit paths in the oxide. ((orig.))

Additional details

Publishing Information

Journal Title
Journal of Nuclear Materials
Journal Volume
210
Journal Issue
1-2
Journal Page Range
p. 78-83.
ISSN
0022-3115
CODEN
JNUMAM

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
26009824
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTALLIZATION; CUBIC LATTICES; DIFFUSION; HEAT TREATMENTS; KINETICS; OXIDATION; OXYGEN ADDITIONS; POLYCRYSTALS; RECRYSTALLIZATION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K; TIME DEPENDENCE; ZIRCONIUM
Descriptors DEC
CHEMICAL REACTIONS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; ELEMENTS; METALS; PHASE TRANSFORMATIONS; TEMPERATURE RANGE; TRANSITION ELEMENTS