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.

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.

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