Physico-chemical properties of microarc oxidation of biocompatible coatings on titanium: Influence of electrochemistry parameters

被引：0

作者：

Dicu, Maria Magdalena ^{[1
]}

Abrudeanu, Marioara ^{[2
]}

Millet, Jean-Pierre ^{[3
]}

Moga, Sorin ^{[1
]}

Rizea, Vasile ^{[2
]}

Ducu, CǍtǍlin ^{[1
]}

机构：

[1] CS III, Research Centre for Advanced Materials, University of Pitesti, Romania

[2] Department of Technology and Management, University of Pitesti, Romania

[3] MATEIS, INSA, Lyon, France

来源：

UPB Scientific Bulletin, Series B: Chemistry and Materials Science | 2012年 / 74卷 / 01期

关键词：

Electrochemical impedance spectroscopy - Corrosive effects - Medical applications - Oxidation - Chemical stability - Corrosion resistance - Biological materials - Calcium compounds - Electrolytes - Biocompatibility - Phospholipids - Titanium dioxide - Electrochemical corrosion - Scanning electron microscopy - Chemical analysis - Titanium;

D O I：

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学科分类号：

摘要：

The most important physico-chemical properties of materials with biomedical applications are: the morphology, the surface structure and the corrosion resistance. In this paper we follow the evolution of these properties, according to the conditions for obtaining TiO2 coatings. These coatings were formed on titanium substrate by microarc oxidation (MAO). The electrolyte is a mixture consisting of β- glycerophosphate disodium salt pentahydrate and calcium acetate monohydrate. The obtained surfaces were characterized using scanning electron microscopy, X-rays analysis and corrosion tests. The anticorrosion properties of the layers were tested in biological environment (buffer solution) by means of electrochemical impedance spectroscopy (EIS), cyclic voltametry, Tafel tests. The results show a good electrochemical stability, combined with positive results regarding their biocompatibility.

引用

页码：193 / 202