Oxidation resistant coatings of ZrO2 and ZrO2-Y2O3 applied by high energy pulse plasma deposition

被引：1

作者：

Yu, WP

He, YD

Zhang, LN

Wang, DR

Yuan, XW

Gao, W ^{[1
]}

机构：

[1] Univ Auckland, Dept Chem & Mat Engn, Auckland 1, New Zealand

[2] Beijing Univ Aeronaut & Astronaut, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Beijing 100083, Peoples R China

来源：

HIGH TEMPERATURE MATERIALS AND PROCESSES | 2000年 / 19卷 / 06期

基金：

中国国家自然科学基金;

关键词：

high energy pulse discharge; plasma; ZrO2+Y2O3 coatings; oxidation;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel surface treatment technique has been developed for producing coatings of ZrO2 and ZrO2-Y2O3 on the surface of metals, ceramics or polymers by using high-energy pulse plasma. The present study was concentrated on the basic mechanism and the effects of operation conditions on the coating qualities. It was shown that the oxidation resistance of 18-8 stainless steel was markedly improved by applying ZrO2 and ZrO2-Y2O3 coatings. The oxidation rates were reduced by a factor of 20, and the amounts of the oxide scale spallation were reduced by a factor of 100 - 300. It is believed that the improvements of the oxidation resistance were caused by the promotion of selective oxidation of Cr in the steel.

引用

页码：435 / 442

页数：8