Investigation of surface film nanostructure and assessment of its impact on friction force stabilization during automotive braking
- The unique nanostructure formed during severe as well as moderate braking on the surface of brake discs was investigated by conventional and analytical Transmission Electron Microscopy. In both cases nanocrystalline magnetite mixed with carbon nanoinclusions and minor amounts of other pad constituents were identified. On the basis of these observations the friction performance of a single micro-contact was simulated with the method of Movable Cellular Automata. Inspite of a simplified nanostructure which was examined in two dimensions only, the calculated mean coefficient of friction fitted well to the value usually demanded for automotive braking. Furthermore, the model predicts that oxide films without soft nanoinclusions are not capable of providing smooth velocity accommodation at the pad–disc interface and thus lead to unstable friction behaviour.
MetadatenAutor*innen: | Werner ÖsterleORCiD, Claudia Prietzel, Andrey Dmitriev |
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Dokumenttyp: | Zeitschriftenartikel |
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Veröffentlichungsform: | Verlagsliteratur |
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Sprache: | Englisch |
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Titel des übergeordneten Werkes (Englisch): | International journal of materials research |
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Jahr der Erstveröffentlichung: | 2010 |
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Herausgeber (Institution): | Deutsche Gesellschaft für Materialkunde |
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Verlag: | Carl Hanser |
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Verlagsort: | München |
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Jahrgang/Band: | 101 |
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Ausgabe/Heft: | 5 |
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Erste Seite: | 669 |
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Letzte Seite: | 675 |
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Freie Schlagwörter: | EFTEM; Friction; MCA-model; Nanostructure; Third body film |
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ISSN: | 1862-5282 |
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Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
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Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
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Datum der Freischaltung: | 19.02.2016 |
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Referierte Publikation: | Ja |
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Datum der Eintragung als referierte Publikation: | 11.11.2010 |
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