The electrophoretic deposition technique was applied to the production of MgB2 coatings on various substrates, such as Ni, Ag, stainless steel plates and Si wafers coated with Pt; using a suspension of MgB2 powder in an organic solvent. The initial concentration of the suspension, the voltage applied, the kind of the organic solvent and the distance between the electrodes were investigated as these were the main parameters that affected the deposition rate of the processing and the quality of the coating. The appropriate subsequent sintering procedure was determined by means of thermal analysis techniques (TG, DTG, DTA). The produced coatings were characterized by using techniques such as XRD, SEM, RAMAN and DTA. The superconducting properties were measured using magnetic susceptibility measurements (SQUID). It was found that, by using the optimized fast electrophoretic deposition technique and subsequent sintering, uniform dense and well-adhered coatings on Ni, Ag and stainless steel substrates were obtained.
Production and Characterization of MgB2 Coatings on Various Substrates by Electrophoretic Deposition. M.Ochsenkühn-Petropoulou, L.Mendrinos, A.Altzoumailis, R.Argyropoulou: Journal of Materials Processing Technology, 2005, 161[1-2], 16-21