The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface

The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface

The micro arc oxidation (MAO) coatings with different concentrations of Ca, P and Zn elements are successfully formed on the titanium substrate at the different applied voltages. After MAO treatment, the MAO coating exhibits the porous surface structure and composed of anatase and rutile TiO2 phases...

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Main Authors: Qing Du, Daqing Wei, Yaming Wang, Su Cheng, Shang Liu, Yu Zhou, Dechang Jia
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-12-01
Series:Bioactive Materials
Online Access:http://www.sciencedirect.com/science/article/pii/S2452199X17301184
id doaj-c304d4c7da6e4699ab223026ada5a68a
record_format Article
collection DOAJ
language English
format Article
sources DOAJ
author Qing Du
Daqing Wei
Yaming Wang
Su Cheng
Shang Liu
Yu Zhou
Dechang Jia
spellingShingle Qing Du
Daqing Wei
Yaming Wang
Su Cheng
Shang Liu
Yu Zhou
Dechang Jia
The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
Bioactive Materials
author_facet Qing Du
Daqing Wei
Yaming Wang
Su Cheng
Shang Liu
Yu Zhou
Dechang Jia
author_sort Qing Du
title The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
title_short The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
title_full The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
title_fullStr The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
title_full_unstemmed The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
title_sort effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface
publisher KeAi Communications Co., Ltd.
series Bioactive Materials
issn 2452-199X
publishDate 2018-12-01
description The micro arc oxidation (MAO) coatings with different concentrations of Ca, P and Zn elements are successfully formed on the titanium substrate at the different applied voltages. After MAO treatment, the MAO coating exhibits the porous surface structure and composed of anatase and rutile TiO2 phases. Meanwhile, the average size and density of micro-pores on the MAO coatings have been modified via the adjusting the applied voltages. In addition, the contents of the incorporated elements such as Zn, Ca and P elements in the MAO coatings have been optimized. The bonding strength test results reveal that the MAO coating shows higher bonding strength, which is up to 45 ± 5 MPa. Compared to the pure Ti plate, the MAO coating formed at 350 and 400 V show good apatite-inducing ability. Meanwhile, the MAO coating containing Zn, Ca and P elements have better antibacterial ability for E.coli and S.aureus. Thus, the incorporation of Zn, Ca and P elements was an effective method to improve the antibacterial ability. Moreover, the concentrations of Zn, Ca and P elements could be adjusted with the changing of the applied voltages. As a result, the enhancement of the antibacterial ability on the MAO coating surfaces was depended on the comprehensive effect of the incorporated elements and the surface property of MAO coatings. Keywords: Micro arc oxidation, Zn element, Applied voltage, Apatite-inducing ability, Antibacterial ability
url http://www.sciencedirect.com/science/article/pii/S2452199X17301184
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spelling doaj-c304d4c7da6e4699ab223026ada5a68a2021-04-02T14:06:10ZengKeAi Communications Co., Ltd.Bioactive Materials2452-199X2018-12-0134426433The effect of applied voltages on the structure, apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surfaceQing Du0Daqing Wei1Yaming Wang2Su Cheng3Shang Liu4Yu Zhou5Dechang Jia6Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, ChinaInstitute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, China; Center of Analysis and Measurement, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. Institute for Advanced Ceramics, Science Park, Harbin Institute of Technology, Yikuang Street, Harbin, 150080, China.Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, China; Corresponding author. Institute for Advanced Ceramics, Science Park, Harbin Institute of Technology, Yikuang Street, Harbin, 150080, China.Department of Mechanical Engineering, School of Architecture and Civil Engineering, Harbin University of Science and Technology, Harbin, 150001, ChinaInstitute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, ChinaInstitute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, ChinaInstitute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China; Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin, 150001, ChinaThe micro arc oxidation (MAO) coatings with different concentrations of Ca, P and Zn elements are successfully formed on the titanium substrate at the different applied voltages. After MAO treatment, the MAO coating exhibits the porous surface structure and composed of anatase and rutile TiO2 phases. Meanwhile, the average size and density of micro-pores on the MAO coatings have been modified via the adjusting the applied voltages. In addition, the contents of the incorporated elements such as Zn, Ca and P elements in the MAO coatings have been optimized. The bonding strength test results reveal that the MAO coating shows higher bonding strength, which is up to 45 ± 5 MPa. Compared to the pure Ti plate, the MAO coating formed at 350 and 400 V show good apatite-inducing ability. Meanwhile, the MAO coating containing Zn, Ca and P elements have better antibacterial ability for E.coli and S.aureus. Thus, the incorporation of Zn, Ca and P elements was an effective method to improve the antibacterial ability. Moreover, the concentrations of Zn, Ca and P elements could be adjusted with the changing of the applied voltages. As a result, the enhancement of the antibacterial ability on the MAO coating surfaces was depended on the comprehensive effect of the incorporated elements and the surface property of MAO coatings. Keywords: Micro arc oxidation, Zn element, Applied voltage, Apatite-inducing ability, Antibacterial abilityhttp://www.sciencedirect.com/science/article/pii/S2452199X17301184

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