S
Sergio Valeri
Researcher at University of Modena and Reggio Emilia
Publications - 254
Citations - 5160
Sergio Valeri is an academic researcher from University of Modena and Reggio Emilia. The author has contributed to research in topics: Auger electron spectroscopy & Thin film. The author has an hindex of 35, co-authored 252 publications receiving 4661 citations. Previous affiliations of Sergio Valeri include University of Milan.
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Tribological effects of surface texturing on nitriding steel for high-performance engine applications
TL;DR: In this paper, the effects of surface modification by laser texturing on tribological performances of nitriding steel for high-performance engine applications were investigated, in particular, a comparison of tribological properties on untextured and textured 30NiCrMo12 (30NiCr6) steel was made among hydrodynamic, mixed and boundary lubrication regimes.
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Evidence of Catalase Mimetic Activity in Ce3+/Ce4+ Doped Bioactive Glasses
Valentina Nicolini,Elisa Gambuzzi,Gianluca Malavasi,Ledi Menabue,Maria Cristina Menziani,Gigliola Lusvardi,Alfonso Pedone,Francesco Benedetti,Paola Luches,Sergio D'Addato,Sergio Valeri +10 more
TL;DR: The ability of Ce-containing bioactive glasses to inhibit oxidative stress in terms of reduction of hydrogen peroxide, by mimicking the catalase enzyme activity is demonstrated here for the first time.
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Nature of Ag Islands and Nanoparticles on the CeO2(111) Surface
Paola Luches,Federico Pagliuca,Sergio Valeri,Francesc Illas,Gloria Preda,Gianfranco Pacchioni +5 more
TL;DR: In this paper, the nucleation and growth of the Ag nanoparticles have been characterized by STM and XPS (X-ray photoemission spectroscopy) measurements complemented with DFT calculations on Ag atoms, clusters, and extended layers deposited on slab models of the CeO2(111) surface.
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Increasing nanohardness and reducing friction of nitride steel by laser surface texturing
TL;DR: In this paper, the authors studied the effect of microdimpling on the mechanical properties of a 30NiCrMo12 nitride steel and developed a new theoretical energetic model to quantify this phenomenon.
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Scanning tunnelling microscopy of MgO ultrathin films on Ag(001)
TL;DR: In this paper, the morphology of ultrathin epitaxial MgO layers reactively grown on Ag(001) was investigated by using scanning tunnelling microscopy, and the largest Ag (001) fractional coverage by monoatomic MglO islands is 70%.