Ing. Luca Pezzato, ICMATE – Padua

Plasma Electrolytic Oxidation (PEO) as process of functionalization of metallic surfaces​

The Plasma Electrolytic Oxidation treatment (PEO, sometimes also called MAO, Micro Arc Oxidation) has recently attracted great attention due to its capability to create a thick and adherent coating with excellent corrosion and wear resistance. Some of the main characteristics of PEO coatings are the high mechanical and corrosion performances, also compared with hard anodizing, and the possibility to incorporate directly into the coating particles and compounds that are dispersed or dissolved into the electrolyte. This last characteristic is particularly useful since permits an easy functionalization of the coated surfaces by inserting particular compounds in the employed electrolytes. The present seminar wants to give a brief overview of the results related to the production and characterization of PEO coated metallic samples obtained by inserting metallic and non-metallic particles or other compounds into the coating

Dr Marco Fortunato, ICMATE – Genoa

The influence of preparation methods on the properties of flexible piezoelectric composite films​

Energy-autonomous systems that utilize smart materials have the potential to significantly reduce fossil fuel consumption. Among these materials, those with piezoelectric properties are especially promising for integration into energy harvesting and conversion devices. Polymer-based composites with functional ceramic fillers are attracting considerable attention due to their ability to combine the inherent flexibility and high breakdown strength (BDS) of polymers with the functional properties of embedded inorganic particles. Building on encouraging previous findings, this study presents a comparative analysis of piezoelectric materials, focusing on the mechanical, thermal, chemical, and electrical properties of flexible PVDF/BaTiO3 composite films prepared using different techniques. We explored the impact of processing on particle dispersion and filler-matrix interactions, particularly regarding agglomeration phenomena and selective formation of PVDF polymorphs. Finally, we examined how these factors influence the dielectric and piezoelectric response of the ensuing composites.​

LOCATION AND DATE:   streaming, 16/04/2025 at 03.00 p.m

REGISTRATIN LINK:   teams.microsoft.com/registration

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