Surface Optimization of Commercial Porous Ti Substrates by EPD of Titanium Nitride
Cecilia Mortalò,
Maria Cannio,
Valentina Zin,
Enrico Miorin,
Francesco Montagner,
Luca Pasquali,
Monica Montecchi,
Dino Norberto Boccaccini,
Monica Fabrizio,
Silvia Maria Deambrosis
Affiliations
Cecilia Mortalò
National Research Council of Italy-CNR, Institute of Condensed Matter Chemistry and Technologies for Energy–ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
Maria Cannio
Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via Pietro Vivarelli 10, 41125 Modena, Italy
Valentina Zin
National Research Council of Italy-CNR, Institute of Condensed Matter Chemistry and Technologies for Energy–ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
Enrico Miorin
National Research Council of Italy-CNR, Institute of Condensed Matter Chemistry and Technologies for Energy–ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
Francesco Montagner
National Research Council of Italy-CNR, Institute of Condensed Matter Chemistry and Technologies for Energy–ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
Luca Pasquali
Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via Pietro Vivarelli 10, 41125 Modena, Italy
Monica Montecchi
Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via Pietro Vivarelli 10, 41125 Modena, Italy
Dino Norberto Boccaccini
Tecno Italia Digital Via Emilia Romagna 83, 41049 Sassuolo, Italy
Monica Fabrizio
CNR Engineering ICT and Technologies for Energy and Transportation Department National Research Council of Italy, Piazzale Aldo Moro 7, 00185 Rome, Italy
Silvia Maria Deambrosis
National Research Council of Italy-CNR, Institute of Condensed Matter Chemistry and Technologies for Energy–ICMATE, Corso Stati Uniti 4, 35127 Padova, Italy
In this work, the infiltration of TiN powders by electrophoretic deposition (EPD) in aqueous media was considered as alternative method to reduce the size craters and the roughness of commercial porous Ti substrates. Ti substrates can be used as suitable supports for the deposition of dense hydrogen separation TiNx-based membranes by physical vapor deposition (PVD) techniques. The influence of various EPD deposition parameters on surface morphology and roughness of TiN-infiltrated substrates were investigated in order to optimize their surface properties. The results suggest that a multi-step EPD procedure is an effective technique for reducing substrate surface defects of commercial porous Ti substrates which could then be successfully used as proper supports for the deposition of dense and defect-free TiNx layers, also aligning the thermal mismatch between the active layer and the porous substrate.
