Effects of additives in electrolyte on characteristics of ceramic coatings formed by microarc oxidation

被引：25
|
作者：
Wang, YK [1 ]
Sheng, L [1 ]
Xiong, RZ [1 ]
Li, BS [1 ]
机构：
[1] Ningbo Surface Engn Res Ctr, Ningbo 315041, Peoples R China
来源：
SURFACE ENGINEERING | 1999年 / 15卷 / 02期
关键词：
D O I：
10.1179/026708499101516425
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effects of adding Na2WO4. 2H(2)O and SiC powder to the electrolyte on the characteristics of ceramic coatings an Al based alloys formed by microarc oxidation were studied. The ceramic coating quality was improved by the two additives, but the addition of Na2WO4.2H(2)O was more effective, as it improved the formation of Al2O3 phase in the ceramic coating, increased the ratio of the internal dense region to the whole ceramic coating, optimised the ceramic coating phase structure, and improved its wear resistance. The SiC powder was able to enter into the ceramic coating and improve its wear resistance, at the same time increasing the friction coefficient of the coating.
引用
收藏
页码：109 / 111
页数：3
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