(email: ldbesra@immt.res.in)


Laboratory: Colloids & Materials Chemistry Department, Institute of Minerals & Materials Technology (IMMT)

Council of Scientific & Industrial Research (CSIR)  (India)

Address: Acharya Vihar, Bhubaneswar 751013, Orissa, India



EPD is such a versatile technique, we use it in our group for a variety of applications: (i) Solid Oxide fuel cell applications--mostly for preparing thin and dense layers of electrolyte materials like YSZ, GDC, LSGM etc., (ii) biocompatible coatings of hydroxyapatite (HAp), TiO2 and HAP-TiO2 composites on Ti implant materials for improving osteointegration, (iii) template assisted EPD for preparation of 2-D and 3-D ordered assemblies of functional nanoparticles over large area with long-range order, high packing density, high surface to volume ratio, and reproducible shape and dimensions for gas sensor application. We are also working on some industrial projects such as: (i) developing thin and well adhered ceramic coating on high strength steel substrates by electrophoretic deposition (EPD) for active corrosion protection, (ii) EPD of diamond powders on copper discs for use as polishing wheels in diamond cutting and polishing industries.   

From a fundamental point of view, our recent focus is on developing water –based EPD and innovative methods to enable EPD on non-conducting substrates. By applying pulsed voltage and current, we have succeeded in effecting EPD without bubble entrapment in deposits from aqueous suspensions. We are using two approaches to enable EPD on non-conducting substrates: (i) use of suitably porous substrate, which when saturated with the suspending medium forms a electrically conductive path to facilitate EPD, and (ii) pre-coating the substrate with conducting polymer like polypyrrole (Ppy) before EPD, which on subsequent sintering gets burnt off.


Selected publications

  • L. Besra, T. Uchikoshi, T.S. Suzuki, Y. Sakka. Experimental verification of pH localization mechanism of particle consolidation at the electrode/solution interface and its application to pulsed DC Electrophoretic deposition (EPD) J. European Ceramic Society, 30, 2010, 1187-1193
  • L. Besra, T. Uchikoshi, T.S. Suzuku, Y. Sakka. Bubble-free Aqueous Electrophoretic deposition (EPD) by Pulse-potential application, J. American ceramic Society, 91(10), 2008, 3154-3159.
  • L. Besra and M. Liu. A review on fundamental and applications of Electrophoretic deposition.  Progress in Materials Science, 52 (1), 2007, 1-61