Electrophoretic deposition applications

Electrophoretic Deposition consists in application of a DC electric field between two electrodes immersed in a suitable colloidal suspension, thus causing migration of the suspended phase toward one of the electrodes and the deposition of a coating at that electrode. This technique is usually applied when it is desired ro deposit a uniform layer (coating) of a material on an irregularly shaped form. For example, deposition of rubber or synthetic polymers on various articles may be done by this method (Refs 5,... 

Electrophoretic deposition (EPD) is a colloidal process in which the charged colloidal particles are driven by a dc electric field to deposit on a substrate, forming a condensed film. This process is a combination of electrophoresis and deposition (Sarkar and Nicholson 1996). It has a long history and the first application was in 1927 for Th02 and tungsten deposition on a platinum cathode. Recently, photocatalyst semiconductor nanoparticles/microparticles have also been assembled by this... 

Matsuda, A., Higashi, Y., Tadanaga, K. and Tatsumisago, M. (2006). Hot-water treatment of sol-gel derived Si02-Ti02 microparticles and application to electrophoretic deposition for thick films. J. Mater. Sci. 41(24), 8101-8108. 

Electrophoretic deposition is used extensively in the automobile industry to form undercoats on car bodies and in many other applications. The successful application of electrophoretic deposition relies on choosing the correct environment, particle size, and system chemistry to achieve coatings of the desired properties. Of critical importance is the ability to determine and control surface charge and the structure of the electrical double layer. 

Kaabi Falahieh Asl, S., Nemeth, S., and Tan, M.J. (2014) Electrophoretic deposition of hydroxyapatite coatings on AZ31 magnesium substrate for biodegradable applications. Progr. Cryst. Growth Character Mater, 60 (3-4), 74—79. 

Kaya, C. (2008) Electrophoretic deposition of carbon nanotube-reinforced hydroxyapatite bioactive layers on Ti-6A1-4V alloys for biomedical applications. Ceram. Int., 34 (8), 1843-1847. 

Lin C et al (2008) Electrophoretic deposition of HA/MWNTs composite coating for biomaterial applications. J Mater Sci Mater Med 19(7) 2569-2574... 

Zhitomirsky D et al (2009) Electrophoretic deposition of bioactive glass/polymer composite coatings with and without HA nanoparticle inclusions for biomedical applications. J Mater Process Technol 209(4) 1853... 

The main deposition methods of NS-Ti02 onto stainless steels are cathodic arc deposition [532], electrophoretic deposition [533], anodic spark deposition (ASD) [534], the sol-gel method [535, 536], atmospheric pressure metal organic CVD (AP-MOCVD) [537, 538] and radio frequency (RF) magnetron sputtering [539]. Preparation methods and applications of NS-Ti02 thin films on stainless steel have been summarized in Table 15. 

One-step electropolymerization deposition processes are envisaged as the most interesting deposition methods in view of potential technological applications. For this reason, there is a growing interest in the integration of materials obtained in such way to obtain multifunctional nanostructured composites and hybrid materials. The selective localization through electrophoretic deposition of nanotubes at the interface of polymers to obtain flexible, transparent and conductive materials could represent a novel approach. 

For applications of such particles film formation is important. Electrophoretic deposition is a possible method for forming compact particle films. 

Sarkar P, Nicholson PS (1996) Electrophoretic deposition (EPD) mechanisms, kinetics, and application to ceramics. J Am Ceram Soc 79 1987-2002... 

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