Time dependent statistics of plasma discharge parameters during bulk AC plasma electrolytic oxidation of aluminium

2013 ◽  
Vol 268 ◽  
pp. 397-409 ◽  
Author(s):  
C.S. Dunleavy ◽  
J.A. Curran ◽  
T.W. Clyne
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Plasma Discharge ◽  
Time Dependent ◽  
Electrolytic Oxidation ◽  
Discharge Parameters ◽  
Plasma Electrolytic

The Mechanism of PEO Process on Al–Si Alloys in Zirconate Solution

2012 ◽  
Vol 479-481 ◽  
pp. 178-181
Author(s):  
Ping Wang ◽  
Dao Xin Liu ◽  
Jian Ping Li ◽  
Yong Chun Guo ◽  
Zhong Yang
Keyword(s):  
Growth Rate ◽  
Plasma Electrolytic Oxidation ◽  
Plasma Discharge ◽  
Alkaline Electrolyte ◽  
Zirconia Coating ◽  
Micro Particles ◽  
Composition And Structure ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Electric Field Force

Zirconia coating was produced on Al-Si alloys by plasma electrolytic oxidation (PEO). The alkaline electrolyte containing Zr(OH)4 powders was used. The composition and structure of the coating were investigated by SEM and XRD. The results show that in the initial stages of oxidation the growth of coating belongs to the stage of anodic oxidation controlled by electrochemical polarization. The growth of coating is mainly outward growth and the growth rate is faster. With elongated treated time and increased thickness of the coating, the growth of coating is mainly ingrowth. In contrast with the stage of anodization, the growth rate of plasma electrolytic oxidation is slower than anodization. The coating consists of t-ZrO2, m-ZrO2, α-Al2O3 and γ-Al2O3.T-ZrO2 is the main phase and distributes in outer layer of the coating, however, α-Al2O3 appears in inner layer of the coating. Many micro-particles appear on the coating surface with dimension of 1-2μm.. In the process of plasma electrolytic oxidation, Zr(OH)4 powders move and deposit on the mouth of plasma discharge channel under the effect of electric field force, then it is transformed to ZrO2 by the high temperature of plasma discharge.

The Effect of Discharge Parameters on the Plasma Electrolytic Oxidation Film’s Morphology

2011 ◽  
Vol 239-242 ◽  
pp. 632-635 ◽  
Author(s):  
Li Wang ◽  
Wen Fu ◽  
Li Chen
Keyword(s):  
Magnesium Alloy ◽  
Surface Morphology ◽  
Plasma Electrolytic Oxidation ◽  
Alloy Films ◽  
Electrode Distance ◽  
Electrolytic Oxidation ◽  
Discharge Parameters ◽  
Plasma Electrolytic ◽  
Surface Morphologies

The effect of discharge parameters (the electrode distance, the electrolyte volume) of the plasma electrolytic oxidation on the magnesium alloy films’ surface morphology were investigated. The results show that the appropriate electrode distance is 30 mm, which exhibits a better PEO surface morphologies. The electrolyte volume should not be too large or too small, in the paper, the appropriate electrolyte volume is between 250-350 mL.

ffect of Na2WO4 in electrolyte on mechanical properties of oxide layer on Al alloy via plasma electrolytic oxidation

2015 ◽  
Vol 53 (8) ◽  
pp. 535-540 ◽  
Author(s):  
Young Gun Ko ◽  
Dong Hyuk Shin ◽  
Hae Woong Yang ◽  
Yeon Sung Kim ◽  
Joo Hyun Park ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Oxide Layer ◽  
Plasma Electrolytic Oxidation ◽  
Al Alloy ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

MODELING OF THE ELECTROLYZER ELECTRIC FIELD FOR PEO OF MAGNESIUM FOR THE STUDY OF SPECIAL CHAPTERS OF ELECTRICAL ENGINEERING

2019 ◽  
Author(s):  
Veta Mukaeva ◽  
E. Parfenov ◽  
R. Mukaev ◽  
M. Gorbatkov
Keyword(s):  
Magnesium Alloy ◽  
Electric Field ◽  
Plasma Electrolytic Oxidation ◽  
Electrical Engineering ◽  
Professional Competencies ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

The issue of modeling the distribution of the electric field in the electrolyzer during the plasma-electrolytic oxidation of a magnesium alloy for the motivation and formation of professional competencies for students in the study of electrical engineering disciplines is considered.

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