Search Results - "Politano, O."
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Effects of planetary ball milling on AlCoCrFeNi high entropy alloys prepared by Spark Plasma Sintering: Experiments and molecular dynamics study
Published in Journal of alloys and compounds (15-04-2020)“…The elaboration of High Entropy Alloys (HEA) was investigated by means of powder metallurgy. We studied the combination of mechanical activation and reactive…”
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Dissolution process at solid/liquid interface in nanometric metallic multilayers: Molecular dynamics simulations versus diffusion modeling
Published in Acta materialia (15-10-2015)“…[Display omitted] The dissolution process of Ni into liquid Al in a layered Ni–Al–Ni system is here studied by means of molecular dynamics simulations, using…”
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Modeling self-sustaining waves of exothermic dissolution in nanometric Ni-Al multilayers
Published in Acta materialia (01-11-2016)“…The self-sustained propagating reaction occurring in nanometric metallic multilayers was studied by means of molecular dynamics (MD) and numerical modeling. We…”
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Molecular dynamics simulations of self-propagating reactions in Ni–Al multilayer nanofoils
Published in Journal of alloys and compounds (15-12-2015)“…The self-propagating high-temperature reaction that occurs in multilayer nanofoils is studied by means of molecular dynamics (MD) simulations, using an…”
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Structure evolution and reaction mechanism in the Ni/Al reactive multilayer nanofoils
Published in Acta materialia (01-03-2014)“…The extremely rapid gasless reactions in binary Ni/Al reactive multilayer nanofoils (RMNFs) are investigated both experimentally and theoretically. The…”
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Fast mechanical synthesis, structure evolution, and thermal stability of nanostructured CoCrFeNiCu high entropy alloy
Published in Journal of alloys and compounds (10-02-2022)“…A powder of equiatomic CoCrFeNiCu high entropy alloy (HEA) was prepared by short-term (120 min) high energy ball milling (HEBM). Our structural and chemical…”
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Molecular Dynamics Studies in Nanojoining: Self-Propagating Reaction in Ni/Al Nanocomposites
Published in Journal of materials engineering and performance (2021)“…Reactive joining with Ni/Al nanocomposites is an innovative technology that provides an alternative to more common bonding techniques. This work focuses on a…”
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Mechanical alloying in the Co-Fe-Ni powder mixture: Experimental study and molecular dynamics simulation
Published in Powder technology (01-02-2022)“…The formation dynamics of medium- entropy alloy CoFeNi has been studied both experimentally and theoretically in terms of molecular dynamic simulation. The…”
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Explosive crystallization in amorphous CuTi thin films: a molecular dynamics study
Published in Journal of non-crystalline solids (01-02-2019)“…Molecular dynamic simulation was used to study mechanism of self-propagating waves of explosive crystallization (devitrification) in the CuTi metallic glass…”
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Reactive Molecular Dynamics of the Initial Oxidation Stages of Ni(111) in Pure Water: Effect of an Applied Electric Field
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (06-12-2012)“…Corrosion processes occurring in aqueous solutions are critically dependent upon the interaction between the metal electrode and the solvent. In this work, the…”
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Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals
Published in Journal of phase equilibria and diffusion (01-10-2021)“…A family of high-entropy alloys (HEA) composed of 3d-transitional metals is attracting great interest due to the mechanical, magnetic, and electrical…”
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Diffusion of oxygen in nickel: A variable charge molecular dynamics study
Published in Solid state communications (01-03-2010)“…Variable charge molecular dynamics have been performed to study the diffusion mechanisms of oxygen atoms (O) in nickel (Ni) in the temperature range 950 K–1600…”
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Self-propagating waves of crystallization in metallic glasses
Published in Applied physics letters (28-08-2017)“…Self-propagating thermal waves of the amorphous-crystalline transformation in Fe-based metallic glasses, obtained by melt spinning, were observed using a…”
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Microstructure development during NiAl intermetallic synthesis in reactive Ni–Al nanolayers: Numerical investigations vs. TEM observations
Published in Surface & coatings technology (25-01-2013)“…Heterogeneous reactions leading to the formation of intermetallic compounds in nanometric Ni–Al multilayer system are examined both numerically and…”
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Journal Article Conference Proceeding -
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High-Entropy-Alloy Binder for TiC-Based Cemented Carbide by SHS Method
Published in International journal of self-propagating high-temperature synthesis (01-07-2019)“…High-entropy alloys represent a new class of materials exhibiting attractive physicomechanical properties [1, 2]. A basic idea is that five or more various…”
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Structural Transformations in Medium- and High-Entropy Alloy Systems in Course of High-Energy Ball Milling
Published in International journal of self-propagating high-temperature synthesis (01-06-2022)“…Dynamics of medium- and high-entropy phase formation during the process of mechanical alloying by means of high-energy ball milling (HEBM) were studied for the…”
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Nanoscale oxide growth on Al single crystals at low temperatures: Variable charge molecular dynamics simulations
Published in Physical review. B, Condensed matter and materials physics (01-01-2006)“…We investigate the oxidation of aluminum low-index surfaces [(100), (110), and (111)] at low temperatures (300-600 K) and three different gas pressure values…”
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A variable charge molecular dynamics study of the initial stage of nickel oxidation
Published in Applied surface science (01-08-2010)“…The oxidation of nickel single crystals is investigated by using variable charge molecular dynamics. The simulations are performed on three nickel low-index…”
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Variable-charge method applied to study coupled grain boundary migration in the presence of oxygen
Published in Acta materialia (01-04-2009)“…One of the important differences between simulation and experiments in grain boundary (GB)-dominated metallic structures is the lack of impurities such as…”
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