Characterization and formation of hydroxyapatite on Ti6Al4V coated by plasma electrolytic oxidation

被引：179

作者：

Durdu, Salih ^{[1
]}

Deniz, Omer Faruk ^{[1
]}

Kutbay, Isil ^{[1
]}

Usta, Metin ^{[1
]}

机构：

[1] Gebze Inst Technol, Dept Mat Sci & Engn, TR-41400 Gebze, Kocaeli, Turkey

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 551卷

关键词：

Plasma electrolytic oxidation; Micro arc oxidation; Hydroxyapatite coatings; X-ray diffraction; X-ray photoelectron spectroscopy; Fourier transform infrared spectroscopy; MICRO-ARC OXIDATION; APATITE-FORMING ABILITY; MECHANICAL-PROPERTIES; CORROSION-RESISTANCE; SURFACE MODIFICATION; PHOSPHATE COATINGS; TITANIUM IMPLANTS; PURE TITANIUM; OXIDE-FILMS; DEPOSITION;

D O I：

10.1016/j.jallcom.2012.11.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, Ti6Al4V alloy was coated in the solution consisting of calcium acetate (CA) and beta-calcium glycerophosphate (beta-Ca-GP) by plasma electrolytic oxidation (PEO) to produce hydroxyapatite and calcium apatite-based composite used as of bioactive and biocompatible materials in biomedical applications. The phase structures, surface morphologies, functional groups of molecules, chemical compositions of the surfaces and the binding energies of atoms in the coating were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS), respectively. Anatase, rutile, calcium oxide, titanium phosphide, whitlockite, tri-calcium phosphate (TCP), perovskite calcium titanate and hydroxyapatite phases on the coating were detected by XRD analysis. The surface of coatings produced by PEO method has a porous structure. The amount of amorphous hydroxyapatite is the highest value for the coating produced at 5 min in XPS and ATR-FTIR results, whereas the amount of crystalline hydroxyapatite has the highest value for coating produced at 120 min in XRD results. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：422 / 429

页数：8

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