A5104831321- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Particle accelerators and beam dynamics
- Advanced materials and composites
- Boron and Carbon Nanomaterials Research
- High Entropy Alloys Studies
- Magnetic confinement fusion research
- High-Temperature Coating Behaviors
- Intermetallics and Advanced Alloy Properties
- Fusion materials and technologies
- Catalytic Processes in Materials Science
- Plasma Diagnostics and Applications
- Luminescence Properties of Advanced Materials
- Advancements in Solid Oxide Fuel Cells
- Superconducting Materials and Applications
- MXene and MAX Phase Materials
- Advanced Photocatalysis Techniques
- Ion-surface interactions and analysis
- TiO2 Photocatalysis and Solar Cells
- Electronic and Structural Properties of Oxides
- Lanthanide and Transition Metal Complexes
- Polymer Nanocomposites and Properties
- Glass properties and applications
- Nuclear Materials and Properties
- Solid-state spectroscopy and crystallography
National Research Council
2016-2025
Institute of Condensed Matter Chemistry and Technologies for Energy
2016-2025
University of Wisconsin–Madison
2015-2017
Institute for Energetics and Interphases
2005-2015
University of Padua
2010
In this work, a rapid microwave-assisted hydrothermal method under mild conditions is investigated for the preparation of Eu3+:YPO4 (5 mol % Eu) luminescent material, which belongs to large family phosphates that, when doped with lanthanide ions, acquire specific luminescence properties used primarily as phosphors modern light sources and optical markers. Crystalline nanopowders are obtained in very short times (as little 5 min) compared conventional methods without need additional...
In this work, CoCrFeNiMox high entropy alloy (HEA) films were deposited by High Power Impulse Magnetron Sputtering (HiPIMS) using pure Mo and equiatomic CoCrFeNi targets. The effect of content on the microstructure, residual stress state, mechanical properties was investigated in range 0–20 at.%. All exhibited a columnar growth morphology density planar defects. Increasing promoted formation fine-grained structure induced transformation from single face-centered cubic (FCC) phase to mixture...
This paper investigates how negative substrate bias voltage and sputtering pressure influence tungsten coatings deposited via radiofrequency magnetron sputtering. Increasing the absolute value of (up to −150 V) results in higher mass density, surface roughness, better crystallinity, improved adhesion, lower electrical resistivity. Raising (from 1 5 Pa) causes a reduction bulk decrease increased resistivity, conductivity, weaker adhesion. These findings highlight importance carefully...
A two-layer TiAl/TiAlN coating was deposited by High Power Impulse Magnetron Sputtering on the surface of three TiAl intermetallic alloys for improving their oxidation resistance. The effectiveness coatings tested in a facility designed simulating service conditions turbine engines components. response uncoated and coated samples compared during thermal cycling up to 1000 °C under oxidizing environment. growth oxide layers degradation were investigated X-ray Diffraction, Scanning Electron...
Dihydroxy-functionalized zwitterionic push−pull chromophores have been synthesized and incorporated into 3-glycidoxypropyltrimethoxysilane- N-[(3-trimethoxysilyl)propyl]ethylenediamine-derived hybrid materials. The functionalization allowed the dye to form covalent bonds matrix network, reaching up 5% molar concentration without aggregation. host material was also specifically designed reduce photobleaching of avoid protonation carbanionic species that occurs in acidic media. exhibits very...
This paper reports the main recent results of RFX-mod fusion science activity.The device is characterized by a unique flexibility in terms accessible magnetic configurations.Axisymmetric and helically shaped Reversed-field pinch equilibria have been studied, along with tokamak plasmas wide range q(a) regimes (spanning from 4 down to 1.2 values).The full configurations between two, so-called ultra low-q ones, has explored, aim studying specific physical issues common all equilibria, such as,...
In this article, the depositions and functional characterizations of Ta-N Ta-Al-N coatings for protection purposes, grown by reactive high-power impulse magnetron sputtering onto silicon substrates, are described. Nitride films were while changing substrate polarization voltage (i.e., applied bias voltage) during process. Moreover, effects adding Al to form a ternary system resulting variation coatings’ mechanical tribological properties have been widely investigated nanoindentation,...
The RFX-mod device is operated both as a reversed field pinch (RFP), where advanced regimes featuring helical shape develop, and tokamak. Due to its flexibility, contributing the solution of key issues in roadmap ITER DEMO, including MHD instability control, internal transport barriers, edge turbulence, isotopic effect, high density limit three-dimensional (3D) non-linear modelling. This paper reports recent advancements understanding self-organized states, strong electron barrier, RFP...
A High Power Impulse Magnetron Sputtering (HiPIMS) method for depositing TiAlN environmental barrier coatings on the surface of Ti-48Al-2Cr-2Nb alloy was developed in view their exploitation turbine engines. Three differently engineered films were processed and performance compared. Bare intermetallic coupons coated specimens submitted to thermal cycling under oxidizing atmosphere up 850 °C or 950 °C, at high heating cooling rates. For this purpose, a burner rig able simulate operating...