Bioactivity and biocompatibility of hydroxyapatite-based bioceramic coatings on zirconium by plasma electrolytic oxidation

2017 ◽  
Vol 71 ◽  
pp. 1020-1027 ◽  
Author(s):  
Salim Levent Aktuğ ◽  
Salih Durdu ◽  
Emine Yalçın ◽  
Kültigin Çavuşoğlu ◽  
Metin Usta
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Bioceramic Coatings

Preparation and Microstructure of Layered Hydroxyapatite Nanorods on Bioceramic Coatings Using Plasma Electrolytic Oxidation Technique

2014 ◽  
Vol 609-610 ◽  
pp. 68-71
Author(s):  
Ying Li ◽  
Qin Wang ◽  
Jian Hong Fang ◽  
Qing Gao ◽  
Ming Lin ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Element Composition ◽  
Biomedical Materials ◽  
Electrolytic Oxidation ◽  
Electric Parameters ◽  
Plasma Electrolytic ◽  
Titanium Substrates ◽  
Bioceramic Coatings

Plasma electrolytic oxidation (PEO) has been one of the most applicable methods to deposit bioceramic coating on an implant and can provide the possibility for incorporating Ca and P ions. In this study, the titanium substrates were oxidized by optimized electric parameters for 5, 10, 15 and 20 mins respectively during PEO process, to analyze the effect of varied oxidation intensity on the microstructure, phase and element composition of the treated coatings. The results show that the PEO coating of 15 min exhibited excellent advantages of creating favorable microstructure, phase and element composition, and could promote the formation of nanoHA on the treated coating, as a result of some HA nanorods deposited on the surface after 7 days immersion in SBF. The PEO technique proved to be another choice to enhance the bioactivity of titanium and the coating could facilitate the precipitation of nanoHA to functionalize the biomedical materials.

scholarly journals Creation of Bioceramic Coatings on the Surface of Ti–6Al–4V Alloy by Plasma Electrolytic Oxidation Followed by Gas Detonation Spraying

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1433
Author(s):  
Bauyrzhan Rakhadilov ◽  
Daryn Baizhan
Keyword(s):  
Titanium Alloy ◽  
Phase Composition ◽  
Plasma Electrolytic Oxidation ◽  
Chemical Compositions ◽  
Detonation Spraying ◽  
Gas Detonation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Gas Detonation Spraying ◽  
Bioceramic Coatings

In this work, bioceramic coatings were formed on Ti6Al4V titanium alloy using a combined technique of plasma electrolytic oxidation followed by gas detonation spraying of calcium phosphate ceramics, based on hydroxyapatite. Plasma electrolytic oxidation was carried out in electrolytes with various chemical compositions, and the effect of electrolytes on the macro and microstructure, pore size and phase composition of coatings was estimated. Three types of electrolytes based on sodium compounds were used: phosphate, hydroxide, and silicate. Plasma electrolytic oxidation of the Ti–6Al–4V titanium alloy was carried out at a fixed DC voltage (270 V) for 5 min. The sample morphology and phase composition were studied with a scanning electron microscope and an X-ray diffractometer. According to the results, the most homogeneous structure with lower porousness and many crystalline anatase phases was obtained in the coating prepared in the silicate-based electrolyte. A hydroxyapatite layer was obtained on the surface of the oxide layer using detonation spraying. It was determined that the appearance of α-tricalcium phosphate phases is characteristic for detonation spraying of hydroxyapatite, but the hydroxyapatite phase is retained in the coating composition. Raman spectroscopy results indicate that hydroxyapatite is the main phase in the coatings.

In vitro properties of bioceramic coatings produced on zirconium by plasma electrolytic oxidation

2017 ◽  
Vol 324 ◽  
pp. 129-139 ◽  
Author(s):  
Salim Levent Aktuğ ◽  
Salih Durdu ◽  
Emine Yalçın ◽  
Kültigin Çavuşoğlu ◽  
Metin Usta
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Bioceramic Coatings

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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