Characterization of Black Ceramic Coating Layer Produced on Al Alloy by Plasma Electrolytic Oxidation in Alkaline Silicate Based Solution

被引：8

作者：

Lee, Jung-Hyung ^{[1
]}

Kim, Seong-Jong ^{[2
]}

机构：

[1] Korea Testing & Res Inst KTR, Ulsan 44412, South Korea

[2] Mokpo Maritime Univ, Dept Marine Engn, Mokpo Si 58628, Jeollanam Do, South Korea

来源：

Science of Advanced Materials | 2016年 / 8卷 / 10期

关键词：

Ceramics; Oxides; Plasma Electrolytic Oxidation; Electro-Chemical Measurements; Optical Properties;

D O I：

10.1166/sam.2016.2934

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The black ceramic coating layer was successfully prepared by plasma electrolytic oxidation (PEO) with electrolytes containing sodium tungstate (Na2WO4). Different gradients of black color were obtained with sodium tungstate concentrations in the electrolyte. Black colorization of PEO coating was not realized without sodium silicate (Na2SiO3) in the electrolyte. The corrosion current density of black ceramic coating layer was increased as compared to that of PEO coating produced without Na2WO4, suggesting that the corrosion resistance of the black PEO coating could be deteriorated by addition of the coloring agent in the electrolyte.

引用

页码：1908 / 1911

页数：4

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