The electrolyte temperature has a great influence on the performance of coating prepared by micro-arc oxidation (MAO). behavior MAO discharge in changing been investigated. Compared to constant conventional process, process different characteristics under temperature. amplitude pulse voltage was detected study change characteristic constant-current control power supply. Three successive stages ...

Micro-arc oxidation (MAO) treatment can effectively improve the wear resistance, corrosion and mechanical strength of aluminum alloy substrates. Improving porous structure MAO film sealing pores is a significant research issue. In this study, 5052 was carried out in silicate electrolytes. The films were sealed with different concentrations SiO2 nanoparticles. effects nanoparticle content on fil...

Abstract The porosity of the micro-arc oxidation coating pure titanium was assessed through utilization Mercury intrusion porosimetry (MIP). values were subsequently adjusted by accounting for proportion volume, resulting in a more precise determination coating’s porosity. Additionally, fractal dimension pore structure determined application linear regression equation utilizing data. findings i...

INTRODUCTION: Magnesium alloys are attractive as a class of biodegradable metallic materials. However, too fast degradation is an obstacle to their clinical applications. Recently, micro-arc oxidation (MAO) coatings were applied on biodegradable magnesium alloys to delay their degradation. In vivo studies showed that the protective ability of the MAO coating should be further improved [1]. Seal...

When using light-alloy drill pipes (LAIDP) with steel tool joints, the development of contact corrosion is observed under certain operating conditions. The value mainly depends on difference in electrochemical potential (ECP) contacting metals. One effective methods for increasing resistance aluminum alloys micro-arc oxidation (MAO) method. This an process combination micro-arc-discharges pheno...

hybrid nanocomposites of binary pt-ru/polyaniline were prepared by oxidative polymerization of aniline andformation pt and ru nanoparticles. the polymerization of aniline was carried out in the presence of potassiumhexa cyano platinate (iv) and ruthenium (iii) nitrosyl nitrate as oxidizing agents. during the reaction anilinemonomers undergo oxidation and form polyaniline (pani) whereas the redu...