Distribution of elements in the surface layer of plasma-electrolytic coatings formed on titanium in electrolytes with MnO2 particles

被引:0
作者
V. S. Rudnev
M. S. Vasilyeva
P. M. Nedozorov
I. A. Korotenko
A. A. Vaganov-Vil’kins
机构
[1] Russian Academy of Sciences,Institute of Chemistry, Far East Branch
[2] Far Eastern Federal University,undefined
来源
Russian Journal of Physical Chemistry A | 2011年 / 85卷
关键词
plasma-electrolytic coatings; titanium; surface layer; pores; aqueous solutions;
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中图分类号
学科分类号
摘要
The influence of electrolytes (aqueous solutions of H2SO4, Na2SO3, and K2B4O7 (group I) and Na2SiO3 (group II)), as well as the effects of pores and ridges around them, on the element composition of oxide coatings was studied. The addition of MnO2 particles to electrolytes initiated the formation of large pores. The pores had increased titanium and decreased oxygen contents. Coatings I contained, on average, up to 1 at % Mn, and coatings II had up to 8 at % Mn; in the pores of II, the Mn concentration was increased to 18 at %. The coatings contained 7–28 at % carbon, which was concentrated in pores in I and on the surface of the oxide coating in II.
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页码:1798 / 1803
页数:5
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