全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Prepare and Formation Mechanism of the Zirconia Coating on Aluminium Alloy by Plasma Electrolytic Oxidation

DOI: 10.3724/sp.j.1077.2009.00107

Keywords: zirconia , coating , plasma electrolytic oxidation , aluminium alloy

Full-Text   Cite this paper   Add to My Lib

Abstract:

Zirconia coating was produced on aluminium alloy by plasma electrolytic oxidation (PEO). The alkaline electrolyte containing Zr(OH)a4 powders was used. The composition and structure of the coating were investigated by XRD, EPMA. The results show that the coating consists of a t-ZrO2, a m-ZrO2, a | /SUB>-Al2O3 and a ||/EM>-Al2O3. a t-ZrOa2 is the main phase and distributes in outer layer of the coating, however, a | /EM>-Al2O3 appears in inner layer of the coating. Many micro-particles appear on the coating surface with dimension of a 1£2| aa. In the process of plasma electrolytic oxidation, Zr(OH)a4 powders move and deposite on the mouth of plasma discharge channel under the effect of electric field force, then it is transformed to ZrOa2 by the high temperature of plasma discharge.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133