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291 results on '"Bemporad E"'

1. Ergonomic Issues and Innovations in Personal Protective Equipment for Contaminated Sites Considering European Regulation 425/2016

Author

Bemporad, E., Berardi, S., Campanari, S., Ledda, A., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Bagnara, Sebastiano, editor, Tartaglia, Riccardo, editor, Albolino, Sara, editor, Alexander, Thomas, editor, and Fujita, Yushi, editor

Published
2019
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6. A Methodology for Multivariate Investigation on the Effect of Acrylate Molecular Structure on the Mechanical Properties and Delivery Efficiency of Microcapsules via In Situ Polymerization

Author

Universitat Rovira i Virgili, Collu, M; Rossi, E; Giamberini, M; Sebastiani, M; Del Pezzo, R; Smets, J; Bemporad, E, Universitat Rovira i Virgili, and Collu, M; Rossi, E; Giamberini, M; Sebastiani, M; Del Pezzo, R; Smets, J; Bemporad, E

Abstract

In the field of encapsulation, microcapsules containing perfume have emerged as effective vehicles for delivering active ingredients across various applications. The present study employed a multivariate analysis framework to examine polyacrylate microcapsules for household products synthesized using different acrylate monomers. The advanced multivariate approach allowed us to quantify critical properties such as the Molecular Weight between Cross-links (MWc), mechanical attributes, Encapsulation Efficiency (EE), and On-Fabric delivery. It is worth noting that the mechanical properties were gauged using a novel nanoindentation technique, which measures the Rupture Force per unit diameter (RFD). Both Encapsulation Efficiency and On-Fabric delivery were assessed using GC-MS. Our findings identified the optimal microcapsule system as one synthesized with 100% aromatic hexafunctional urethane acrylate, showcasing a 94.3% Encapsulation Efficiency and an optimal RFD of 85 N/mm. This system achieved an exemplary On-Fabric delivery rate of 307.5 nmol/L. In summary, this research provides crucial insights for customizing microcapsule design to achieve peak delivery efficiency. Furthermore, by designing acrylic monomers appropriately, there is potential to reduce the amount of active ingredients used, owing to enhanced delivery efficiency and the optimization of other microcapsule properties. Such advancements pave the way for more environmentally friendly and sustainable production processes in the fast-moving consumer goods industry.

Published
2023

40. Residual stresses and mechanical behavior of nickel-boron coatings

Author

Montagne A., Vitry V., Bonin L., Mughal M. Z., Sebastiani M., Bemporad E., Iost A., STAIA, MARIANA HENRIETTE, Montagne, A., Vitry, V., Bonin, L., Mughal, M. Z., Sebastiani, M., Bemporad, E., Iost, A., and Staia, MARIANA HENRIETTE

Subjects
Young's, Modulu, Residual stresse, Hardne, Nickel coating, Nanoindentation
Abstract

Two nickel-based coatings obtained from electroless plating baths are studied. The first one is studied as-deposited whereas the second one was subjected to a heat-treatment. Hardness and Young's modulus of coatings have been investigated by means of indentation tests. Results show that mechanical properties are homogenous in the whole thickness of the coating. On the other hand, the heat treatment leads on a significantly increase of hardness and modulus. Residual stresses in the coatings are studied by the incremental ring core method. Values of residual stresses are small, scattered and do not seem to be heat-treatment dependent. Without any modifications of residual stresses before and after heat treatment, mechanical properties evolutions were attributed to the microstructural modification of the coating and to the precipitation of hard phases.

Published
2019

45. Fire simulation tests of mineral oil and natural esters transformers

Author

Mazzaro, M., primary, De Bartolomeo, D., additional, Pompili, M., additional, Calcara, L., additional, Sangiovanni, S., additional, Scatiggio, F., additional, Valant, A., additional, Rebolini, M., additional, Ledda, A., additional, Bemporad, E., additional, Berardi, S., additional, Mauri, F., additional, Salvadori, M., additional, Sturchio, A., additional, and Falconi, M., additional

Published
2019
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50. Ti1−xAlxN coatings by Reactive High Power Impulse Magnetron Sputtering: film/substrate interface effect on residual stress and high temperature oxidation

Author

Deambrosis, S. M., Montagner, F., Zin, V., Fabrizio, M., Badini, C., Padovano, E., Sebastiani, M., Bemporad, E., Brunelli, K., Miorin, E., Deambrosis, S. M., Montagner, F., Zin, V., Fabrizio, M., Badini, C., Padovano, E., Sebastiani, Marco, Bemporad, Edoardo, Brunelli, K., and Miorin, E.

Subjects
γ-TiAl based alloys, Materials science, Film-substrate interface design, Reactive HiPIMS, TiAlN coatings oxidation resistance, Residual stress, Burner-rig thermal test, Polishing, 02 engineering and technology, Substrate (electronics), engineering.material, 01 natural sciences, Metal, Coating, 0103 physical sciences, Materials Chemistry, Composite material, Deposition (law), 010302 applied physics, Plasma etching, ?-TiAl based alloys, Surfaces and Interfaces, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Surfaces, Coatings and Films, visual_art, visual_art.visual_art_medium, engineering, High-power impulse magnetron sputtering, 0210 nano-technology
Abstract

To withstand oxidation at a temperature >= 850 °C, an optimized Ti1-xAlxN coating was grown via reactive High Power Impulse Magnetron Sputtering (HiPIMS) technology on three identical Ti0.48Al0.48Cr0.02Nb0.02 billets. Different substrate surface pre-treatments were designed to increase performance: i) mechanical polishing, ii) mechanical polishing combined with a strong plasma etching, and iii) mechanical polishing coupled to both a weak plasma etching and a Ti1-yAly metallic interlayer deposition. Then, all the specimens were cyclically heat treated up to 200 cycles at 950 °C, using a Burner Rig (BR) facility. The chosen Ti1-xAlxN/substrate interface architecture considerably influenced average compressive residual stress (Sres) and adhesion of just deposited films. Moreover, it was possible to identify a clear relationship between Sres behavior and each coating comportment after BR tests. It became clear that the weak plasma etching/Ti1-yAly interlayer match helped improving the system stability (i.e. very low average residual stress thermal relaxation) thus guarantying high temperature oxidation resistance.[object Object]

Published
2018
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