EFFECT OF SULPHURIC ACID CONCENTRATION ON ANODISED TITANIUM FOR BIOMEDICAL APPLICATION
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): H.Z. ABDULLAH , M.I. IDRIS , N. ANJANG , Z. MALIK
Abstract: Anodic oxidation (AO) is a chemically electrode reactions between electric field driven metal and oxygen ion diffusion to the formation of an oxide film on anode surface. This method able to modified the oxide layer of titanium (Ti) from smooth (bioinert) to porous surface (bioactive) by thickening the oxide film which enhance osseointegration and corrosion resistance of the Ti. This paper presents a study of surface characterisations of anodised titanium in sulphuric acid (H2SO4) formed via anodic oxidation. Anodic films were obtained by using AO method in sulphuric acid, where the concentration and voltage were varied in the range of 0.3-1.8 M and 50-200 V respectively. The samples are examined by using X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). From XRD analysis, oxide conversion is identified from very small amount of anatase (50 V) to high crystallinity of anatase at 100 V and mixture of anatase and rutile at
- Publication Date: 27-May-2015
- DOI: 10.15224/978-1-63248-062-0-36
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MECHANISM OF BONE-LIKE APATITE FORMATION ON ANODISED TITANIUM UNDER UV IRRADIATION
Published In: 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): H.Z. ABDULLAH , M.I. IDRIS , T.C. LEE
Abstract: Anodic oxidation is an electrochemical method for the production of ceramic films on a metallic substrate. It had been widely used to deposit the ceramic coatings on the metals surface. UV light was used to accelerate the bone-like apatite formation on the anodised titanium in this study. The processing was composed of two steps which were UV light treatment after anodic oxidation, and UV light illumination during simulated body fluid (SBF). This study aims to study the mechanism of bone-like apatite formation on the surface of anodised titanium under UV irradiation. High purity titanium foils were anodised at 350 V, 70 mA.cm-2 in electrolytic solution containing glycerophosphate disodium salt pentahydrate (β-GP) and calcium acetate monohydrate (CA) for 10 minutes. UV light treatment was conducted in pH-adjusted distilled water (pH 1) for 12 hours. Next, SBF was carried out by illuminating with UV lamp for 1 week. Anodised titanium foils were characterised by using field emission scann
- Publication Date: 27-May-2015
- DOI: 10.15224/978-1-63248-062-0-37
- Views: 0
- Downloads: 0