Influence of Applied Voltage on the Structure of Micro-Plasma Oxidized Titania-Based Coatings Formed in an Electrolyte Containing Nano-HA and Calcium Salts and Phosphate
In this work,porous titania-based coatings containing Ca and P ions were prepared on titanium alloy by micro-plasma oxidation (MPO) in an electrolyte containing nano-HA,calcium salts and phosphate under various applied voltages (200~450 V).The results showed that the MPO coatings formed at 250-450 V were composed of anatase and amorphous phase.With increasing applied voltage,the micropore size and thickness of the MPO coatings increase,while the micropore number decreases.Furthermore,the Ca and P concentrations,as well as atomic ratio of Ca/P are highly dependent on the applied voltage.In addition,the cross-sectional view results showed good adhesion between the MPO coatings and titanium alloy substrate at various applied voltages.In vitro experiments indicated that the MPO coating can induce apatite formation.
Coating Titanium alloy Micro-plasma oxidation Titania
Daqing Wei Yu Zhou Dechang Jia Yaming Wang
Institute for Advanced Ceramics,Harbin Institute of Technology,Harbin 150001,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
1209-1211
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）