scispace - formally typeset
Book ChapterDOI

Oxidation of Zirconium During a High-Temperature Transient

Reads0
Chats0
TLDR
In this paper, a physical model describing oxidation and oxygen diffusion under non-isothermal conditions is presented, which assumes equilibrium at phase interfaces, as usual in the treatment of diffusion.
Abstract
A physical model describing oxidation and oxygen diffusion under non-isothermal conditions is presented. It assumes (a) equilibrium at phase interfaces, as is usual in the treatment of diffusion, and (b) oxygen supersaturation of the ..beta..--zirconium to precipitate ..cap alpha..--zirconium on cooling. An important consideration, not required in isothermal diffusion, is that the equilibrium oxygen concentrations in the ..cap alpha..- and ..beta..-phases decrease with temperature. During isothermal oxidation at temperatures above 850/sup 0/C, the phase distribution is zirconium dixoide (ZrO/sub 2/)/..cap alpha../..beta...

read more

Citations
More filters
Journal ArticleDOI

High temperature steam oxidation of chromium-coated zirconium-based alloys: Kinetics and process

TL;DR: In this paper, the authors studied the oxidation of chromium-coated zirconium-based alloys under steam at temperatures ranging from 800°C up to 1500°C and for oxidation times ranging from a few minutes up to a few hours.
Journal ArticleDOI

Evaluation of Equivalent Cladding Reacted parameters of Cr-coated claddings oxidized in steam at 1200 °C in relation with oxygen diffusion/partitioning and post-quench ductility

TL;DR: In this article, the relationship between equivalent cladding Reacted (ECR) parameters, oxygen diffusion/partitioning and post-quench (PQ) ductility of Cr-coated M5Framatome fuel claddings oxidized in steam at 1200°C was investigated.
Journal ArticleDOI

An approach to study oxidation-induced stresses in Zr alloys oxidized at high temperature

TL;DR: In this article, a method was elaborated to measure the deformation of Zr alloy samples in-situ, during oxidation at high temperature (above 900°C typically) and subsequent cooling.
Related Papers (5)