Electrophoretic deposition of hydroxyapatite coatings on titanium from dimethylformamide suspensions

2011 ◽  
Vol 206 (1) ◽  
pp. 43-50 ◽  
Author(s):  
A.A. Abdeltawab ◽  
M.A. Shoeib ◽  
S.G. Mohamed
Keyword(s):  
Electrophoretic Deposition ◽  
Hydroxyapatite Coatings

scholarly journals Hydroxyapatite Coatings on Titanium Alloy TNTZ using Electrophoretic Deposition

2019 ◽  
Vol 602 ◽  
pp. 012071
Author(s):  
Gunawarman ◽  
N F Nuswantoro ◽  
D Juliadmi ◽  
H Fajri ◽  
A Budiman ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Electrophoretic Deposition ◽  
Hydroxyapatite Coatings

Electrophoretic Deposition of Hydroxyapatite Coatings on AZ31: The Effect of Nanoparticle Multiple Coating Approach

2015 ◽  
Vol 1125 ◽  
pp. 484-488 ◽  
Author(s):  
C.Y. Chong ◽  
Tuty Asma Abu Bakar ◽  
Nor Akmal Fadil ◽  
Rafaqat Hussain
Keyword(s):  
Electrophoretic Deposition ◽  
Coating Layer ◽  
Az31 Alloy ◽  
Amorphous Structure ◽  
The Body ◽  
X Ray Diffraction ◽  
Coating Structure ◽  
Biodegradable Implant ◽  
Hydroxyapatite Coatings ◽  
Multiple Coating

Magnesium and its alloys are potential biodegradable implant materials. However, they are characterized by rapid degradation in the electrolytic environment of the body. This phenomenon might result a sudden implant failure before bone restoration was complete, or inflammation subsided. This research will explore ways to improve the corrosion resistance of AZ31 magnesium alloy by improving the coating layer of hydroxyapatite (HA) through multiple coating layers by an electrophoretic deposition (EPD) process. In this study, the quality of the coating layer was improved by multiple coating processes without using any binders. X-ray diffraction spectrometer (XRD) showed that an amorphous structure of HA was successfully deposited on the AZ31 alloy. Scanning electron microscopy (SEM) has been used to observe that the morphology of the AZ31 alloy coated with multiple layers of HA has a denser coating structure with improved adhesion at the interface as compared to the single coating layer. A denser coating structure with greater bonding between the coating layer and the substrate is expected to protect the substrate from a high corrosion rate, thus resulting in a longer period of biodegradation as in implant in the electrolytic environment.

Different Morphology of Hydroxyapatite Coatings on Titanium by Electrophoretic Deposition

2006 ◽  
Vol 309-311 ◽  
pp. 639-642 ◽  
Author(s):  
Xian Wei Meng ◽  
Tae Yub Kwon ◽  
Kyo Han Kim
Keyword(s):  
Electrophoretic Deposition ◽  
Hydroxyapatite Coating ◽  
Applied Potential ◽  
Experimental Conditions ◽  
Powder Concentration ◽  
Hydroxyapatite Coatings ◽  
Deposition Yield ◽  
Coating Morphology ◽  
Titanium Substrates

Commercial hydroxyapatite powders were electrophoretically deposited on titanium substrates. In this study, the effect of deposition durations and applied voltages on deposition yield was investigated. Green and sintered coatings were studied by SEM and XRD. It was observed that by applying low voltages and presedimentation, uniform and smooth hydroxyapatite coating can be prepared. In order to obtain roughened hydroxyapatite coatings, high voltages have to be applied. It was concluded that experimental conditions of powder concentration, applied potential, and presedimentation have a significant effect on the deposited coating morphology.

Hydroxyapatite Coatings by Electrophoretic Deposition on Blasted Titanium Sheets

2001 ◽  
Vol 218-220 ◽  
pp. 61-64
Author(s):  
L.A. de Sena ◽  
Marcia S. Sader ◽  
Antonella M. Rossi ◽  
Gloria Dulce de Almeida Soares
Keyword(s):  
Electrophoretic Deposition ◽  
Hydroxyapatite Coatings
Sign in / Sign up

Export Citation Format

Share Document