Research on the improvement of mixed titania and Co(Mn) oxide nano-composite coatings

2018 5th Global Conference on Polymer and Composite Materials

材料科学;化学

Yar-Mukhamedova, G.^1 ; Ved, M.^2 ; Karakurkchi, A.^2 ; Sakhnenko, N.^2 ; Atchibayev, R.^1

Physics Department, Al-Farabi Kazakh National University, IETP, 71 Al-Farabi Avenue, Kazakhstan^1

Physical Chemistry Department, National Technical University, Kharkiv Polytechnic Institute, 2 Kyrpychova Street, Kharkiv

61002, Ukraine^2

关键词: Applied current;    Chemical and phase compositions;    Effect of chemicals;    Electrode voltage;    Electrolyte compositions;    Interelectrodes;    Nano-composite coating;    Spark discharge;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/369/1/012019/pdf
DOI  :  10.1088/1757-899X/369/1/012019

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The structure and the properties of the oxide films formed on titanium in the diphosphate based electrolytes by means of plasma electrolytic oxidizing at direct current density of 2-2.5 A•dm-2have been studied. Oxide layers of different composition and content of alloying elements were obtained by modification of electrolytes and variation in current density. The interelectrode voltage during PEO, chemical and phase composition, topography and microstructure of the formed layers depend on the electrolyte composition and applied current density. The spark-discharge regime was shown to be reached at inter-electrode voltage 100 to 130 V depending on the composition of electrolyte. The effect of chemical composition and surface morphology formed mixed oxide films on the corrosion resistance and catalytic activity has been discussed.