Document Type : Original Article
Authors
1
Department of Prosthodontics, Faculty of Dentistry, Alexandria University
2
Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
3
Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Egypt
4
Department of Materials Science and Engineering, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt
5
Department of Prosthodontics, Head of tissue engineering laboratories, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
Abstract
Introduction
Although Titanium has high mechanical properties, the lack of its biological activity led to the need for its surface modification. Titanium surface coating is one of the additive surface modifications. Adding new materials to titanium surface can bring new properties to it yet maintaining its original properties. In this study, 70S30C bioglass was used to coat the Titanium substrate by using the electrophoretic deposition technique (EPD).
Objective
Optimizing EPD parameter (voltage amount) for 70S30C bioglass nanoparticles coating on Titanium substrate. The aim of the current study is to evaluate the effect of the voltage amount on the produced coating thickness.
Methods
Twenty-four Titanium discs were prepared (10x1.5 mm), sandblasted, and ultrasonically cleaned in ethanol. Bioglass 70S30C was prepared by sol-gel technique followed by ball milling to produce nanoparticle powder. Characterization of the powder was done by transmission and scanning electron microscope. Titanium discs were divided into three groups (G1, G2, and G3) (n=8) each. They were subjected to EPD coating with 10, 30, and 50 Voltage, respectively. The coating thickness was then assessed by SEM images of the cross-section of the used specimens.
Results
TEM images revealed a highly agglomerated nano-powder with a size range of 8-20 nm. The coating thickness was increased by increasing the voltage amount under the same deposition time.
Conclusion
EPD proved to be a versatile and innovative coating technique with a low cost. The resultant coat thickness is directly proportional to the voltage amount.
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