Improvement of corrosion resistance of metals by an environmentally friendly silica coating method

被引：69
作者：
Ono, S
Tsuge, H
Nishi, Y
Hirano, S
机构：
[1] Nagoya Municipal Ind Res Inst, Atsuta Ku, Nagoya, Aichi 4560058, Japan
[2] Nagoya Univ, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2004年 / 29卷 / 03期
关键词：
chemical solution deposition; silica coating; polymer; corrosion resistance;
D O I：
10.1023/B:JSST.0000023849.33761.86
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Corrosion resistance of stainless steel and Zn plated steel can be improved by a chromium-free environmentally friendly chemical solution deposition method. Precursor solutions were prepared from tetraethoxysilane with polymer, and were deposited on stainless steel, Zn plated steel and aluminum alloy by dip coating, followed by heat treatment. Addition of polymer to the precursor solution proved very effective in preparing films free from cracks on stainless steel and aluminum alloy substrates. The corrosion resistance was greatly improved by the resulting sub-micron thick silica-polymer hybrid film coatings on stainless steel and on Zn plated steel prepared at 200degreesC. The hardness of aluminum alloy coated with silica-PMMA hybrid film was improved by 7% over uncoated alloy.
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页码：147 / 153
页数：7
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