Effects of Current Density on Microstructure of Titania Coatings by Micro-arc Oxidation

被引：0
|
作者：
Yang, Yue [1 ]
Wu, Hua [1 ]
机构：
[1] Changchun Univ Technol, Key Lab Adv Struct Mat, Minist Educ, Changchun 130012, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2012年 / 28卷 / 04期
关键词：
Titanium alloy; Micro-arc oxidation; Raman spectra; Current density; FILMS; ALLOY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the present study, titania coatings were prepared under different current density conditions in micro-arc oxidation (MAO) process on titanium alloy in NaAlO2 solution. The aim of this work was to study the effects of current density on the microstructure of titania coatings. The morphology and phase composition of the coatings were investigated by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and Raman spectra. The thickness and surface roughness of the coatings were characterized by confocal laser Scanning Microscopy (CLSM). The results showed that the coatings were composed of crystalline anatase and rutile phases of TiO2, and contain a network of evenly distributed small pores. It has also shown that an increase in current density leads to an increase in rutile content.
引用
收藏
页码：321 / 324
页数：4
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