Effect of ultrasound during micro-arc oxidation on the porous structure and adhesion strength of the calcium phosphate coatings

2019 ◽  
Author(s):  
E. A. Kazantseva ◽  
E. G. Komarova ◽  
Yu. P. Sharkeev
Keyword(s):  
Calcium Phosphate ◽  
Porous Structure ◽  
Adhesion Strength ◽  
Phosphate Coatings ◽  
Micro Arc Oxidation ◽  
Calcium Phosphate Coatings

Bioactivity, Wear and Corrosion Resistant Properties of Rare Earth/Calcium Phosphate Composite Coatings

2008 ◽  
Vol 368-372 ◽  
pp. 1194-1197 ◽  
Author(s):  
Chen Ma ◽  
Ying Hui Wang ◽  
Mu Qin Li ◽  
Li Jie Qu
Keyword(s):  
Rare Earth ◽  
Calcium Phosphate ◽  
Composite Coatings ◽  
Xrd Analysis ◽  
Wear Properties ◽  
Corrosion Resistant ◽  
Phosphate Coatings ◽  
Wear And Corrosion ◽  
Micro Arc Oxidation ◽  
Calcium Phosphate Coatings

Rare earth/calcium phosphate composite coatings were fabricated on the surface of Ti-6Al-4V by micro-arc oxidation (MAO) technique. The wear properties and corrosion resistant of rare earth/ calcium phosphate composite coatings in the simulated body fluid (SBF) have been investigated and the bioactivity of the composite coatings were evaluated. The results show that the friction coefficient of the composite coatings in the SBF is only 0.15~0.18 and the anode polarization potential of the coating has been obviously enhanced about 0.18V compared with that of coatings of calcium phosphate coatings. So the composite coatings have excellent wear and corrosion resistant properties. XRD analysis indicates that the composite coatings can induce hydroxyapatite to form on its surface after soaked in SBF for 9d, which shows that the composite coatings own good bioactivity.

Mechanical Properties of Calcium Phosphate Coatings Produced by Method of RF-Magnetron Sputtering on Bioinert Alloys

2014 ◽  
Vol 1013 ◽  
pp. 188-193 ◽  
Author(s):  
Kseniya Kulyashova ◽  
Yuri P. Sharkeev ◽  
Aizhan Sainova
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Calcium Phosphate ◽  
Magnetron Sputtering ◽  
Adhesion Strength ◽  
Rf Magnetron Sputtering ◽  
Calcium Phosphate Coating ◽  
Phosphate Coating ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings

Results of research of mechanical properties of calciumphosphate coatings produced by the method radio frequency magnetron sputtering on bioinert alloys of titanium, zirconium and were presented. Calcium phosphate coatings show high value of adhesion strength to bioinert metal surface. Calcium phosphate coating on titanium-niobium alloy surface shows the highest value of adhesion strength. Mechanical properties of a composite material based on bioinert alloy and calcium phosphate coating are higher than properties of the components of composite material separately.

Formation of structure and composition of Sr-Si-containing calcium phosphate coatings via micro-arc oxidation

2019 ◽  
Vol 12 ◽  
pp. 137-141 ◽  
Author(s):  
Ekaterina G. Komarova ◽  
Mariya B. Sedelnikova ◽  
Marina V. Chaikina ◽  
Yana O. Ivashenko ◽  
Yurii P. Sharkeev
Keyword(s):  
Calcium Phosphate ◽  
Phosphate Coatings ◽  
Micro Arc Oxidation ◽  
Calcium Phosphate Coatings

scholarly journals Effect of the Porosity, Roughness, Wettability, and Charge of Micro-Arc Coatings on the Efficiency of Doxorubicin Delivery and Suppression of Cancer Cells

Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 664
Author(s):  
Mariya Borisovna Sedelnikova ◽  
Ekaterina G. Komarova ◽  
Yurii P. Sharkeev ◽  
Valentina V. Chebodaeva ◽  
Tatiana V. Tolkacheva ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
X Ray Diffraction ◽  
Oxidation Method ◽  
X Ray ◽  
Phosphate Coatings ◽  
Micro Arc Oxidation ◽  
Calcium Phosphate Coatings ◽  
Adsorption Desorption ◽  
Kinetics Of ◽  
Scanning Electron

Porous calcium phosphate coatings were formed by the micro-arc oxidation method on the surface of titanium for the loading and controlled release of the anticancer drug doxorubicin. The coatings’ morphology and microstructure were examined by scanning electron microscopy. The phase composition was determined with the help of X-ray diffraction analysis. Studies of the hydrophilic properties of the coatings and their zeta potential were carried out. Data on the kinetics of doxorubicin adsorption-desorption were obtained. In addition, the effect of calcium phosphate coatings impregnated with doxorubicin on the viability of the Neuro-2a cell line was revealed. The coating formed at low voltages of 200–250 V contained a greater number of branched communicating pores, and therefore they were able to adsorb a greater amount of doxorubicin. The surface charge also contributes to the process of the adsorption-desorption of doxorubicin, but this effect is not fully understood and further studies are required to identify it.

Principal Physics of Oblique Sputtering of Calcium Phosphate Coatings Using RF-Magnetron Discharge Plasma

2021 ◽  
Vol 63 (11) ◽  
pp. 1891-1897
Author(s):  
K. A. Prosolov ◽  
O. A. Belyavskaya ◽  
V. V. Lastovka ◽  
M. V. Chaikina ◽  
Yu. P. Sharkeev
Keyword(s):  
Calcium Phosphate ◽  
Discharge Plasma ◽  
Magnetron Discharge ◽  
Phosphate Coatings ◽  
Calcium Phosphate Coatings
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