Preparation and mechanism of controllable micropores on bioceramic TiO < inf> 2 coatings by plasma electrolytic oxidation
Document Type
Article
Publication Date
10-1-2013
Abstract
Porous titania coatings with Ca and P elements were synthesized by plasma electrolytic oxidation (PEO). The treatment was carried out in an electrolyte containing calcium acetate monohydrate and disodium phosphate dodecahydrate (Ca/P = 5), and 4-20 μm micropores were prepared on the coatings by applied pulse frequencies of 200-1000 Hz. The surface structure, chemical composition of the TiO2 coatings, and time-dependent variation of electric currents were studied. The result revealed that the coating micropores, which could be controlled in size, increased with higher frequency, and the coatings mainly consisted of anatase and rutile phases with varying fractions. Based on our experiment, the formation mechanism of micropores and phases of the PEO coatings was further discussed in details. © 2013 World Scientific Publishing Company.
Publication Title
Surface Review and Letters
Recommended Citation
Wang, H.,
Zhu, R.,
Lu, Y.,
Xiao, G.,
Ma, J.,
&
Yuan, Y.
(2013).
Preparation and mechanism of controllable micropores on bioceramic TiO < inf> 2 coatings by plasma electrolytic oxidation.
Surface Review and Letters,
20(5).
http://doi.org/10.1142/S0218625X13500510
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12447