Results 131 to 140 of about 691 (173)

Protective coatings-formation by microarc oxidation

Proceedings of the 8th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists Modern Technique and Technologies, 2002. MTT 2002., 2003
Inclusion of the dispersed particles allows one to obtain coating with multiphase and multicomponent composition, inhomogeneous in composition. Taking into account. for these processes will allow one to simulate the coating composition. To obtain coating of a significant thickness it is necessary to control the processes of the pores and cracks ...
E.V. Khokhryakov, P.I. Butyagin, A.I. Mamaev   +2 more
openaire   +1 more source

Porous Functional Coatings by Microarc Oxidation

Glass and Ceramics, 2018
FGUP TsNII KM “Prometey” have proposed a new approach to creating porous functional ceramic coatings on the surface of steel by means of low-temperature heterophase transport combined with microarc oxidation (MAO). The adhesion of the coating to metal is at least 60 MPa.
M. A. Markov, D. A. Gerashchenkov, A. V. Krasikov, I. V. Ulin, A. D. Bykova, M. L. Shishkova, N. V. Yakovleva   +6 more
openaire   +1 more source

Microarc oxidation in slurry electrolytes: A review

Surface Engineering and Applied Electrochemistry, 2016
The experience gathered from the use of plasma electrolytic methods in the context of improving the performance of valve group metals is summarized. Emphasis is placed on the formation of coatings by microarc oxidation (MAO) in slurry electrolytes containing powders with different degree of dispersion (a few nanometers to a few tens of microns) and ...
A. M. Borisov, B. L. Krit, V. B. Lyudin, N. V. Morozova, I. V. Suminov, A. V. Apelfeld   +5 more
openaire   +1 more source

OBTAINING CALCIUM-PHOSPHATE COATINGS BY MICROARC OXIDATION

BULLETIN of D. Serikbayev EKTU, 2023
В этом обзоре рассмотрены история развития и текущее состояние метода микродугового оксидирования (МДО), а также химические, электро-плазмохимические механизмы формирования слоев. Изучены различные типы и стадии явления плазменно-электролитного разряда, описано влияние состава электролита и электрических режимов на ...
openaire   +1 more source

Microarc oxidation of magnesium alloys: A review

Surface Engineering and Applied Electrochemistry, 2014
This review summarizes the experience of using plasma electrolyte methods to improve the properties of magnesium alloys intended for designing components of various devices, medical equipment, etc. The emphasis is placed on the formation of coatings by both the “standard” microarc oxidation (MAO) method and its version using electrolytes containing ...
B. V. Vladimirov, B. L. Krit, V. B. Lyudin, N. V. Morozova, A. D. Rossiiskaya, I. V. Suminov, A. V. Epel’feld   +6 more
openaire   +1 more source

Microarc oxidation of pure aluminium in alumina containing electrolytes

Surface Engineering, 2019
In this study, oxide coatings produced on commercially pure Al via 40-min microarc oxidation process in electrolytes containing Na2SiO3, KOH and α-Al2O3 powder were characterized by SEM-EDS, profil...
Z. Cagatay Oter, Yunus Azakli, Sezgin Cengiz, Yücel Gencer, Mehmet Tarakci   +4 more
openaire   +2 more sources

Photocatalytic performance of magnesium alloy microarc oxides

Journal of Alloys and Compounds, 2013
Abstract Microarc oxidation (MAO) coatings were prepared on AZ91D magnesium alloy in a phosphate electrolyte with and without K 2 TiF 6 , respectively. The morphology, composition and phase structure of the MAO coatings were investigated. Corrosion resistances and photocatalytic properties of the MAO coatings were evaluated using potentiodynamic ...
Mingqi Tang, Gang Li, Weiping Li, Huicong Liu, Liqun Zhu   +4 more
openaire   +1 more source

New sealing treatment of microarc oxidation coating

Surface Engineering, 2014
Silanisation treatment was proposed as a new approach for sealing treatment of microarc oxidation (MAO) coating on Mg alloy AZ91D. The morphologies of the Mg alloy surfaces after MAO with or without silanisation sealing treatment were characterised by scanning electron microscopy. The results demonstrated that quite a few structural defects, including
Y. Q. Wang, Y. Z. Deng, Y. W. Shao, F. H. Wang   +3 more
openaire   +1 more source

Characterization of Microarc Oxidation Process on Aluminium Alloy

Chinese Physics Letters, 2003
The specific features of electric current variation against time were studied by keeping the anode and cathode pulse voltage to be constant. The maximum thickness of the films fabricated by microarc oxidation was found to be closely related to the voltage.
Wu Han-Hua, Jin Zeng-Sun, Long Bei-Yu, Yu Feng-Rong, Lu Xian-Yi   +4 more
openaire   +1 more source

Surface modification of titanium implant by microarc oxidation and hydrothermal treatment

Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2004
AbstractSurface modification of titanium implant is processed by microarc oxidation and hydrothermal treatment. A porous surface with a biologically active bone‐like apatite layer was formed. The apatite layer consists of very fine crystals and high crystallinity and is integrated with the titanium alloy substrate with a graded structure without a ...
Ping, Huang, Yong, Zhang, Kewei, Xu, Yong, Han   +3 more
openaire   +2 more sources