Search Results - "Moras, Gianpietro"

Mechano-chemical decomposition of organic friction modifiers with multiple reactive centres induces superlubricity of ta-C by Kuwahara, Takuya, Romero, Pedro A., Makowski, Stefan, Weihnacht, Volker, Moras, Gianpietro, Moseler, Michael

“…Superlubricity of tetrahedral amorphous carbon (ta-C) coatings under boundary lubrication with organic friction modifiers is important for industrial…”
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Friction Regimes of Water-Lubricated Diamond (111): Role of Interfacial Ether Groups and Tribo-Induced Aromatic Surface Reconstructions by Kuwahara, Takuya, Moras, Gianpietro, Moseler, Michael

“…Large-scale quantum molecular dynamics of water-lubricated diamond (111) surfaces in sliding contact reveals multiple friction regimes. While water starvation…”
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Interplay of mechanics and chemistry governs wear of diamond-like carbon coatings interacting with ZDDP-additivated lubricants by Salinas Ruiz, Valentin R., Kuwahara, Takuya, Galipaud, Jules, Masenelli-Varlot, Karine, Hassine, Mohamed Ben, Héau, Christophe, Stoll, Melissa, Mayrhofer, Leonhard, Moras, Gianpietro, Martin, Jean Michel, Moseler, Michael, de Barros Bouchet, Maria-Isabel

“…Friction and wear reduction by diamond-like carbon (DLC) in automotive applications can be affected by zinc-dialkyldithiophosphate (ZDDP), which is widely used…”
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Relating Dry Friction to Interdigitation of Surface Passivation Species: A Molecular Dynamics Study on Amorphous Carbon by Falk, Kerstin, Reichenbach, Thomas, Gkagkas, Konstantinos, Moseler, Michael, Moras, Gianpietro

“…Friction in boundary lubrication is strongly influenced by the atomic structure of the sliding surfaces. In this work, friction between dry amorphous carbon…”
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A Combined Experimental and Atomistic Investigation of PTFE Double Transfer Film Formation and Lubrication in Rolling Point Contacts by von Goeldel, Stephan, Reichenbach, Thomas, König, Florian, Mayrhofer, Leonhard, Moras, Gianpietro, Jacobs, Georg, Moseler, Michael

“…Solid lubricants such as polytetrafluoroethylene (PTFE) are used in rolling-element bearings (REBs) when conventional lubrication (i.e. by fluids or greases)…”
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In Situ Synthesis of Graphene Nitride Nanolayers on Glycerol-Lubricated Si3N4 for Superlubricity Applications by Long, Yun, Kuwahara, Takuya, De Barros Bouchet, Maria-Isabel, Ristić, Andjelka, Dörr, Nicole, Lubrecht, Ton, Dupuy, Laurent, Moras, Gianpietro, Martin, Jean Michel, Moseler, Michael

“…The increasing demand for sustainable tribology has accelerated the development of environmentally friendly lubrication solutions such as water or…”
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Atomically smooth stress-corrosion cleavage of a hydrogen-implanted crystal by Moras, Gianpietro, Ciacchi, Lucio Colombi, Elsässer, Christian, Gumbsch, Peter, De Vita, Alessandro

“…We present a quantum-accurate multiscale study of how hydrogen-filled discoidal "platelet" defects grow inside a silicon crystal. Dynamical simulations of a…”
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Solid-Phase Silicon Homoepitaxy via Shear-Induced Amorphization and Recrystallization by Reichenbach, Thomas, Moras, Gianpietro, Pastewka, Lars, Moseler, Michael

“…We study mechanically induced phase transitions at tribological interfaces between silicon crystals using reactive molecular dynamics. The simulations reveal…”
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Steric Effects Control Dry Friction of H- and F‑Terminated Carbon Surfaces by Reichenbach, Thomas, Mayrhofer, Leonhard, Kuwahara, Takuya, Moseler, Michael, Moras, Gianpietro

“…A stable passivation of surface dangling bonds underlies the outstanding friction properties of diamond and diamond-like carbon (DLC) coatings in boundary…”
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An All-Atom Force Field for Dry and Water-Lubricated Carbon Tribological Interfaces by Reichenbach, Thomas, Sylla, Severin, Mayrhofer, Leonhard, Romero, Pedro Antonio, Schwarz, Paul, Moseler, Michael, Moras, Gianpietro

“…We present a nonreactive force field for molecular dynamics simulations of interfaces between amorphous carbon surfaces and their interaction with water. The…”
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Activation and mechanochemical breaking of C–C bonds initiate wear of diamond (110) surfaces in contact with silica by Peguiron, Anke, Moras, Gianpietro, Walter, Michael, Uetsuka, Hiroshi, Pastewka, Lars, Moseler, Michael

“…Diamond surfaces wear when sliding against silica – a much softer material. Although this plays a major role in chemical mechanical planarization of diamond or…”
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Fluorine-Terminated Diamond Surfaces as Dense Dipole Lattices: The Electrostatic Origin of Polar Hydrophobicity by Mayrhofer, Leonhard, Moras, Gianpietro, Mulakaluri, Narasimham, Rajagopalan, Srinivasan, Stevens, Paul A, Moseler, Michael

“…Despite the pronounced polarity of C–F bonds, many fluorinated carbon compounds are hydrophobic: a controversial phenomenon known as “polar hydrophobicity”…”
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Superlubricity of Silicon-Based Ceramics Sliding against Hydrogenated Amorphous Carbon in Ultrahigh Vacuum: Mechanisms of Transfer Film Formation by Kuwahara, Takuya, Long, Yun, Sayilan, Aslihan, Reichenbach, Thomas, Martin, Jean Michel, De Barros Bouchet, Maria-Isabel, Moseler, Michael, Moras, Gianpietro

“…Tribological interfaces between silicon-based ceramics, such as Si3N4 or SiC, are characterized by high friction and wear in unlubricated conditions. A…”
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Surface Depassivation via B–O Dative Bonds Affects the Friction Performance of B‑Doped Carbon Coatings by Peeters, Stefan, Kuwahara, Takuya, Härtwig, Fabian, Makowski, Stefan, Weihnacht, Volker, Lasagni, Andrés Fabián, Dienwiebel, Martin, Moseler, Michael, Moras, Gianpietro

“…Boron doping of diamond-like carbon coatings has multiple effects on their tribological properties. While boron typically reduces wear in cutting applications,…”
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Formation and Oxidation of Linear Carbon Chains and Their Role in the Wear of Carbon Materials by Moras, Gianpietro, Pastewka, Lars, Gumbsch, Peter, Moseler, Michael

“…The atomic-scale processes taking place during the sliding of diamond and diamond-like carbon surfaces are investigated using classical molecular dynamics…”
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Toward a continuum description of lubrication in highly pressurized nanometer-wide constrictions: The importance of accurate slip laws by Codrignani, Andrea, Peeters, Stefan, Holey, Hannes, Stief, Franziska, Savio, Daniele, Pastewka, Lars, Moras, Gianpietro, Falk, Kerstin, Moseler, Michael

“…The Reynolds lubrication equation (RLE) is widely used to design sliding contacts in mechanical machinery. While providing an excellent description of…”
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Progressive Shortening of sp-Hybridized Carbon Chains through Oxygen-Induced Cleavage by Moras, Gianpietro, Pastewka, Lars, Walter, Michael, Schnagl, Johann, Gumbsch, Peter, Moseler, Michael

“…Linear sp-hybridized carbon chains have recently been proposed as one-dimensional nanostructures for electronic applications and as intermediate products in…”
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Ab initio derived force-field parameters for molecular dynamics simulations of deprotonated amorphous-SiO2/water interfaces by Butenuth, Anke, Moras, Gianpietro, Schneider, Julian, Koleini, Mohammad, Köppen, Susan, Meißner, Robert, Wright, Louise B., Walsh, Tiffany R., Ciacchi, Lucio Colombi

“…We present a set of Coulomb point charges and van der Waals parameters for molecular dynamics simulations of interfaces between natively deprotonated amorphous…”
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Multiwall Carbon Nanotubes for Solid Lubrication of Highly Loaded Contacts by MacLucas, Timothy, Klemenz, Andreas, Grünewald, Patrick, Presser, Volker, Mayrhofer, Leonhard, Moras, Gianpietro, Suarez, Sebastian, Dienwiebel, Martin, Mücklich, Frank, Moseler, Michael

“…When lubrication of rolling bearings with oil or grease is not possible, for example because the lubricant evaporates in vacuum, solid lubrication by multiwall…”
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matscipy: materials science at the atomic scale with Python by Grigorev, Petr, Frérot, Lucas, Birks, Fraser, Gola, Adrien, Golebiowski, Jacek, Grießer, Jan, Hörmann, Johannes L., Klemenz, Andreas, Moras, Gianpietro, Nöhring, Wolfram G., Oldenstaedt, Jonas A., Patel, Punit, Reichenbach, Thomas, Rocke, Thomas, Shenoy, Lakshmi, Walter, Michael, Wengert, Simon, Zhang, Lei, Kermode, James R., Pastewka, Lars

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