Results 21 to 30 of about 691 (173)

Effect of Current Density on Characteristics of 2024 Aluminum Alloy Microarc Oxidation Coatings with Titanium Dioxide Particles

open access: yesInternational Journal of Electrochemical Science, 2019
Ceramic coatings were deposited on a 2024 aluminum alloy by microarc oxidation (MAO) in a silicate electrolyte system containing 2 g/L nano-TiO2 particles at different current densities (1, 2.5, 5, 7.5 and 10 A/dm2).
Ping Wang   +7 more
doaj   +1 more source

Microarc Oxidation of Carbon-Graphite Materials (Review) [PDF]

open access: yesSurface Engineering and Applied Electrochemistry, 2018
The review is devoted to microarc (or plasma-electrolytic) oxidation (MAO) of carbon-graphite materials with the purpose of protecting their surfaces from oxidation, primarily, high-temperature oxidation. It is found that the formation of protective coatings on graphite under certain conditions occurs in accordance with trends similar to the formation ...
B. L. Krit   +3 more
openaire   +1 more source

Electrotechnology of microarc oxidation of light alloys

open access: yesTraktory i sel hozmashiny, 2012
Features of electrotechnology of microarc oxidation of light (Al, Mg, Ti) alloys are considered. A module with current displacement effect was developed and described. It allows to control the ratio of cathode and anode currents and the rigidity of mode in condensing AC inverters which are widely used for this technology.
L P Shichkov, V B Lyudin, A V Epelfeld
openaire   +1 more source

Improved biological performance of magnesium by micro-arc oxidation [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 2014
Magnesium and its alloys have recently been used in the development of lightweight, biodegradable implant materials. However, the corrosion properties of magnesium limit its clinical application.
W.H. Ma, Y.J. Liu, W. Wang, Y.Z. Zhang
doaj   +4 more sources

Effect of Al2O3 Particle Concentration on the Characteristics of Microarc Oxidation Coatings Formed on Pure Titanium

open access: yesInternational Journal of Electrochemical Science, 2018
Microarc oxidation coatings were successfully fabricated on pure titanium substrates by microarc oxidation (MAO) in electrolytes with Al2O3 particles of varying concentrations, which ranged from 0 to 4 g·L-1 (0, 1, 2, 3, 4 g·L-1). The voltage versus time
Ping Wang   +6 more
doaj   +1 more source

Detection of optical emission spectra in microarc discharge process and growth mechanism of oxide films on 15SiCP/2009 aluminum matrix composite

open access: yesJournal of Aeronautical Materials
The 15SiCP/2009 aluminum matrix composite is treated by microarc oxidation in silicate electrolyte. Optical emission spectra (OES) in microarc discharge process at different positive voltages are collected by optical fiber spectrometer,and their plasma ...
WAN Xumin   +5 more
doaj   +1 more source

Fabrication of Bioactive Pure Ti by Microarc Oxidation and Hydrothermal Treatment Methods

open access: yesInternational Journal of Electrochemical Science, 2015
Microarc oxidation (MAO) coatings with a rich calcium and phosphorus composition are prepared on the titanium surface in Ca2+and PO43- ion electrolytes; the surface is then treated with a hydrothermal method in order to obtain the hydroxyapatite (HA ...
Chun-Chieh Tseng, Jeou-Long Lee
doaj   +1 more source

STUDY OF THE INFLUENCE OF THE MEASURING SIGNAL FREQUENCY ON THE INDIRECT MEASUREMENT ERROR OF OXIDE COATINGS PROPERTIES

open access: yesИзмерение, мониторинг, управление, контроль, 2022
Backgroung. The object of the study is the method of indirect measurement of the thickness and porosity of a coating obtained by microarc oxidation based on impedance measurement.
P.E. Golubkov   +5 more
doaj   +1 more source

Relationship between porosity, pore parameters and properties of microarc oxidation film on AZ91D magnesium alloy

open access: yesResults in Physics, 2019
Microarc oxidation films on AZ91D magnesium alloy were prepared in sodium silicate-based electrolyte by a high-frequency bipolar pulsing mode. The effects of porosity and pore parameters on the properties of the films were studied.
Pei Zhang, Yu Zuo
doaj   +1 more source

Osteoblast Response to Copper-Doped Microporous Coatings on Titanium for Improved Bone Integration

open access: yesNanoscale Research Letters, 2021
Due to their excellent mechanical properties and good biocompatibility, titanium alloys have become a popular research topic in the field of medical metal implants.
Lai-jie Wang   +11 more
doaj   +1 more source

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