scholarly journals Deposition of hydroxyapatite–incorporated TiO2 coating on titanium using plasma electrolytic oxidation coupled with electrophoretic deposition

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62540-62544 ◽  
Author(s):  
Sviatlana A. Ulasevich ◽  
Anatoly I. Kulak ◽  
Sergey K. Poznyak ◽  
Sergey A. Karpushenkov ◽  
Aleksey D. Lisenkov ◽  
...  
Keyword(s):  
Electrophoretic Deposition ◽  
Plasma Electrolytic Oxidation ◽  
Tio2 Coating ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

K2[TiO(C2O4)2] is decomposed by micro-arcs on the anode producing TiO2 while hydroxyapatite particles are incorporated into TiO2 coating during electrophoretic deposition.

Electrophoretic Composite Coatings on Magnesium Alloys

2015 ◽  
Vol 245 ◽  
pp. 97-102
Author(s):  
Dmitry V. Mashtalyar ◽  
Sergey V. Gnedenkov ◽  
Sergey L. Sinebryukhov ◽  
Igor M. Imshinetsky
Keyword(s):  
Mechanical Properties ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Electrophoretic Deposition ◽  
Plasma Electrolytic Oxidation ◽  
Corrosion Current Density ◽  
Composite Coatings ◽  
Corrosion Current ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

Investigation results of the composite coatings obtained on MA8 magnesium alloy by plasma electrolytic oxidation (PEO) and post-treated by electrophoretic deposition of superdispersed polytetrafluoroethylene (SPTFE) are presented. Comprehensive research of electrochemical and mechanical properties of the obtained polymer-containing coatings on the magnesium alloy has been performed. It has been established that composite coatings to decrease the corrosion current density by three orders of magnitude (down to Ic = 2.0×10-10 A/cm2) and the wear by two orders of magnitude (down to 1.2×10-6 mm3/(N·m)), as compared to the basic PEO-coating.

Characterization of Composite Coatings Produced by Plasma Electrolytic Oxidation Plus Cathodic Electrophoretic Deposition on Magnesium Alloy

2010 ◽  
Vol 146-147 ◽  
pp. 1126-1131
Author(s):  
Yong Feng Jiang ◽  
Hua Shan Yang ◽  
Ye Feng Bao ◽  
Ying Yue Zhang
Keyword(s):  
Magnesium Alloy ◽  
Electrophoretic Deposition ◽  
Plasma Electrolytic Oxidation ◽  
Composite Coatings ◽  
Salt Spray ◽  
Immersion Test ◽  
Organic Layer ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

The composite coatings were prepared on AZ91D magnesium alloy by plasma electrolytic oxidation (PEO) plus cathodic electrophoretic deposition (E-coat) to improve corrosion protection. SEM observation revealed that the organic layer was integrated with PEO film by physically interlocking; Potentiodynamic polarization(E-i) measurements in 3.5% NaCl solution, copper accelerated acetate salt spray(CASS) test and immersion test were employed to evaluate corrosion principle and corrosion rate of composite coatings. It is indicated that the corrosion resistance of composite coatings was improved obviously compared to the PEO film. There is no noticeable pitting corrosion on the composite coatings after 320h CASS test. The adhesion of composite coatings was evaluated by cross-cut and pull-off test. The results show that adhesion of composite coatings can reach to level 0 and 11.3 N/mm2 as a result of the blocking effect between organic layer and PEO film.

Low Frictional TiO2 and MoS2/TiO2 Coatings on Ti-6Al-4V Alloy

2012 ◽  
Vol 496 ◽  
pp. 334-338 ◽  
Author(s):  
Tse Cheng ◽  
Zhi Jing Peng ◽  
Xue Yuan Nie
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Solid Lubricant ◽  
Tribological Behavior ◽  
Anatase Tio2 ◽  
High Load ◽  
Tio2 Coating ◽  
Pulsed Dc ◽  
Wear Life ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

TiO2 and MoS2/TiO2 coatings were prepared using a Plasma Electrolytic Oxidation (PEO) process at a unipolar pulsed-DC mode. Both coatings, mainly comprised of anatase TiO2, exhibited a low coefficient of friction, C.O.F < 0.21 for the TiO2 coating and C.O.F < 0.16 for the MoS2/TiO2 coating, while the MoS2/TiO2 coating had a longer wear life than TiO2-coated and uncoated Ti alloy (Ti-6Al-4V). This result showed that the solid lubricant MoS2 may play a significant role in the tribological behavior and it can be applied to many high load-bearing systems in aerospace and automotive industries.

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