Mechanical response of gasoline soot nanoparticles under compression: An in situ TEM study
| Autor: | Arash Khajeh, Istvan Zoltan Jenei, Ashlie Martini, Hamed Ghaednia, Fabrice Dassenoy, Arup Gangopadhyay, Thierry Epicier, Dairene Uy |
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| Přispěvatelé: | Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne (ENISE)-Centre National de la Recherche Scientifique (CNRS), Consortium Lyon Saint-Etienne de Microscopie (CLYM), École normale supérieure de Lyon (ENS de Lyon)-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM), Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), University of California [Merced] (UC Merced), University of California (UC), Ford Motor Company, Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Lyon (ENS Lyon)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet [Saint-Étienne] (UJM), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), University of California [Merced], University of California |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
In situ
Materials science Nanoparticle Modulus 02 engineering and technology Molecular dynamics medicine.disease_cause [SPI.MAT]Engineering Sciences [physics]/Materials Diesel fuel 0203 mechanical engineering In situ TEM medicine Gasoline Composite material Mechanical Engineering Compression Soot nanoparticle Surfaces and Interfaces 021001 nanoscience & nanotechnology Compression (physics) Soot Surfaces Coatings and Films 020303 mechanical engineering & transports Mechanics of Materials Transmission electron microscopy 0210 nano-technology |
| Zdroj: | Tribology International Tribology International, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩ Tribology International, Elsevier, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩ |
| ISSN: | 0301-679X 1879-2464 |
| Popis: | International audience; Gasoline soot nanoparticles (SNPs) were studied by performing in situ compression tests on individual nanoparticles inside a transmission electron microscope. After consecutive compressions, the SNPs exhibited an elasto-plastic behavior, and an increasing trend in Young's modulus and hardness values. Molecular dynamics were used to simulate compression cycles, the results of which confirmed the observations made during the experiments. The simulations were used to investigate how the different structural components of the nanoparticles affect their elastic and plastic response. By comparing the behavior of gasoline and diesel SNPs under compression, differences were observed both experimentally and in the simulations: the former were found to be more elastic and less prone to become hard under compression compared to the latter. |
| Databáze: | OpenAIRE |
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