Electrophoretic deposition (EPD) is an electrochemical method attracting increasing interest as a material processing technique. In the first step of EPD an electric field is applied between two electrodes and charged particles suspended in a suitable liquid move toward the oppositely charged electrode; in the second step the particles accumulate at the deposition electrode and create a relatively compact and homogeneous film, which, however, requires a further consolidation step in order to fully develop satisfactory mechanical properties. In the present work, EPD conditions have been varied in order to control the initial porosity of the deposits of nano- and sub-micrometric zirconia powders, applying an innovative "zerointegral" approach. Microwave heating was then applied to rapidly sinter the deposited powders, trying to minimize grain growth. EPD and microwave heating allow to influence the final product properties and thus its end use like thermal barrier coating or for tribological applications.

Microwave-assisted consolidation of coatings obtained by electrophoretic deposition (EPD) / Veronesi, P.; Leonelli, C.; Corradi, A. B.; Poli, G.; Romagnoli, M.; Giovanardi, R.; Rosa, R.; Cannio, M.; Michelazzi, M.; Rizzuti, A.; Boccaccini, A. R.. - (2009), pp. 250-253. ((Intervento presentato al convegno 12th International Conference on Microwave and High Frequency Heating, AMPERE 2009 tenutosi a Forschungszentrum Karlsruhe, Fortbildungszentrum fur Technik und Umwelt (FTU), deu nel 2009.

Microwave-assisted consolidation of coatings obtained by electrophoretic deposition (EPD)

Veronesi P.;Leonelli C.;Corradi A. B.;Poli G.;Romagnoli M.;Giovanardi R.;Rosa R.;Cannio M.;Michelazzi M.;Boccaccini A. R.
2009

Abstract

Electrophoretic deposition (EPD) is an electrochemical method attracting increasing interest as a material processing technique. In the first step of EPD an electric field is applied between two electrodes and charged particles suspended in a suitable liquid move toward the oppositely charged electrode; in the second step the particles accumulate at the deposition electrode and create a relatively compact and homogeneous film, which, however, requires a further consolidation step in order to fully develop satisfactory mechanical properties. In the present work, EPD conditions have been varied in order to control the initial porosity of the deposits of nano- and sub-micrometric zirconia powders, applying an innovative "zerointegral" approach. Microwave heating was then applied to rapidly sinter the deposited powders, trying to minimize grain growth. EPD and microwave heating allow to influence the final product properties and thus its end use like thermal barrier coating or for tribological applications.
12th International Conference on Microwave and High Frequency Heating, AMPERE 2009
Forschungszentrum Karlsruhe, Fortbildungszentrum fur Technik und Umwelt (FTU), deu
2009
Veronesi, P.; Leonelli, C.; Corradi, A. B.; Poli, G.; Romagnoli, M.; Giovanardi, R.; Rosa, R.; Cannio, M.; Michelazzi, M.; Rizzuti, A.; Boccaccini, A. R.
Microwave-assisted consolidation of coatings obtained by electrophoretic deposition (EPD) / Veronesi, P.; Leonelli, C.; Corradi, A. B.; Poli, G.; Romagnoli, M.; Giovanardi, R.; Rosa, R.; Cannio, M.; Michelazzi, M.; Rizzuti, A.; Boccaccini, A. R.. - (2009), pp. 250-253. ((Intervento presentato al convegno 12th International Conference on Microwave and High Frequency Heating, AMPERE 2009 tenutosi a Forschungszentrum Karlsruhe, Fortbildungszentrum fur Technik und Umwelt (FTU), deu nel 2009.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1200080
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