High Temperature Oxidation Behaviour of Nanostructured Alumina–Titania APS Coatings

被引：0
|
作者：
A. Rico
J. Rodríguez
E. Otero
机构：
[1] Universidad Rey Juan Carlos,Departamento de Ciencia e Ingeniería de Materiales
来源：
Oxidation of Metals | 2010年 / 73卷
关键词：
Ceramic coating; Nanostructure; Oxidation behaviour; Alumina–titania;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Isothermal oxidation tests at 400, 500 and 600 °C were performed on nanostructured and conventional alumina–titania coatings at different exposure times in air environment. Although parabolic kinetics were observed for most of the experimental conditions, a transition between parabolic and quasi-linear kinetics was found for the conventional system at very demanding conditions (high temperature and exposure time). The better crack propagation resistance of the nanocoating, due to its particular hierarchical microstructure, is thought to be responsible for the enhanced behaviour and the better oxidation resistance observed in this coating.
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页码：531 / 550
页数：19
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