A general strategy toward the rational synthesis of metal tungstate nanostructures using plasma electrolytic oxidation method

2015 ◽  
Vol 356 ◽  
pp. 273-281 ◽  
Author(s):  
Yanan Jiang ◽  
Baodan Liu ◽  
Zhaofeng Zhai ◽  
Xiaoyuan Liu ◽  
Bing Yang ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
General Strategy ◽  
Oxidation Method ◽  
Metal Tungstate ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Inhibitor-Containing Composite Coatings on Mg Alloys: Corrosion Mechanism and Self-Healing Protection

2015 ◽  
Vol 245 ◽  
pp. 89-96 ◽  
Author(s):  
Andrey S. Gnedenkov ◽  
Sergey L. Sinebryukhov ◽  
Dmitry V. Mashtalyar ◽  
Sergey V. Gnedenkov
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Composite Coatings ◽  
Healing Process ◽  
Corrosion Mechanism ◽  
Self Healing ◽  
Protective Properties ◽  
Oxidation Method ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Electrode Technique

The way of self-healing coating formation at the surface of magnesium alloys by means of plasma electrolytic oxidation method (PEO) with subsequent filling of the obtained layer with inhibitor has been suggested. The electrochemical properties of such coatings have been described in details. The obtained experimental results indicate that the protective properties of the samples with inhibitor-containing coating were increased (IC = 8.6×10–8 A/cm2) in comparison with the samples without coating (5.3×10–5 A/cm2) and the base coating obtained by plasma electrolytic oxidation method (PEO) (3.4×10–7 A/cm2). The local scanning electrochemical methods of surface investigation, notably Scanning Vibrating Electrode Technique (SVET) and Scanning Ion-Selective Electrode Technique (SIET) were used for determining the kinetics and mechanism of the self-healing process. The treatment by the solution containing 8-hydroxyquinoline, which inhibits the corrosion process, enables one to increase the protective properties of the composite coating in 30 times in the corrosion-active environment in comparison with the base PEO-coating and avert the intensive destruction of the material.

Influence of Magnetostatic Interactions on Magnetization Process of Iron-Containing Coatings, Produced Using the Plasma Electrolytic Oxidation Method

2014 ◽  
Vol 215 ◽  
pp. 200-203 ◽  
Author(s):  
Peter V. Kharitonskii ◽  
Anatoly Frolov ◽  
Sergey A. Boev ◽  
Vladimir S. Rudnev ◽  
I.A. Tkachenko ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Plasma Electrolytic Oxidation ◽  
Magnetic Moments ◽  
Remnant Magnetization ◽  
Magnetization Process ◽  
Magnetostatic Interaction ◽  
Oxidation Method ◽  
Superparamagnetic Particles ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

In this paper we research the process of magnetization of iron-containing coatings obtained on aluminum and titanium plasma electrolytic oxidation. It is shown that the formation of a remnant magnetic moment mainly determined by the magnetostatic interaction particles (phases). This interaction leads to a decrease of the blocking volume of particles (phases). Thus, a large number of superparamagnetic particles (phases) obtain stable magnetic moments and are involved in creating of the remnant magnetization of the sample.

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