| 等离子体电解阴极沉积Y2O3陶瓷涂层 |
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| 引用本文： | 韩伟,何业东,薛润东,王德仁.等离子体电解阴极沉积Y2O3陶瓷涂层[J].材料热处理学报,2005,26(4):83-86. |
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| 作者姓名： | 韩伟 何业东 薛润东 王德仁 |
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| 作者单位： | 北京科技大学,北京市腐蚀、磨蚀与表面技术重点实验室,北京,100083;吉林化工学院,吉林,132022;北京科技大学,北京市腐蚀、磨蚀与表面技术重点实验室,北京,100083 |
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| 基金项目： | 国家自然科学基金（20373006） |
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| 摘 要： | 在Y（NO3）3水溶液中，以Fe25Cr5Al合金为阴极，研究了等离子体电解阴极沉积Y2O3陶瓷涂层的规律。研究发现，当施加的槽电压超过临界值时，阴极发生气膜微弧放电，在合金表面沉积出Y2O3陶瓷涂层。研究了施加槽电压、沉积时间、Y（NO3）3浓度对沉积Y2O3陶瓷涂层的影响。扫描电镜（SEM）、X射线衍射（XRD）分析结果表明，获得的Y2O3陶瓷涂层表面具有熔融的特征，涂层致密与基体结合牢固。探讨了等离子体电解阴极沉积Y2O3涂层的机理。
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| 关 键 词： | 等离子体电解阴极沉积 气膜微弧放电 Y2O3陶瓷涂层 |
| 文章编号： | 1009-6264（2005）04-0083-04 |
| 收稿时间： | 2004-11-09 |
| 修稿时间： | 2004-11-092004-12-15 |
Y2 O3 Coatings Deposited by Cathodic Plasma Electrolysis |
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| HAN Wei,HE Ye-dong,XUE Run-dong,WANG De-ren.Y2 O3 Coatings Deposited by Cathodic Plasma Electrolysis[J].Transactions of Materials and Heat Treatment,2005,26(4):83-86. |
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| Authors: | HAN Wei HE Ye-dong XUE Run-dong WANG De-ren |
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| Abstract: | Y_2O_3 coatings deposited on the surface of Fe25Cr5 alloy in Y(NO_3)_3 aqueous solution by cathodic plasma electrolysis was studied. The results show that the formation of gaseous envelope, micro arc discharge and deposition of Y_2O_3 coatings occur simultaneously on the surface of the alloy when the applied voltage exceeds its critical value. The influence of applied voltage, depositing time and Y(NO_3)\-3 concentration on the depositing process of Y_2O_3 coatings were studied as well. It is demonstrated from the results of SEM and XRD analysis that Y_2O_3 coating has some special characteristics, such as the surface feature cooled from molten state and strong adhesion with the substrate metal. Meanwhile, the mechanism on the formation of Y_2O_3 coatings deposited by cathodic plasma electrolysis is discussed. |
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| Keywords: | deposition by cathodic plasma electrolysis gaseous envelope micro arc discharge Y_2O_3 coatings |
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