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Temperature induced transition from hexagonal to circular pits in graphite oxidation by O<sub>2</sub>
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | DELEHOUZÉ, Arnaud | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | REBILLAT, Francis | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | WEISBECKER, Patrick | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | LEYSSALE, Jean-Marc | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | EPHERRE, Jean-François | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | LABRUGÈRE, Christine | |
| hal.structure.identifier | Laboratoire des Composites Thermostructuraux [LCTS] | |
| dc.contributor.author | VIGNOLES, Gérard | |
| dc.date.issued | 2011 | |
| dc.identifier.issn | 0003-6951 | |
| dc.description.abstractEn | We report on an in-situ monitoring of graphite oxidation using a high temperature environmental scanning electron microscope. A morphological transition is clearly identified around 1040 K between hexagonal pits at low temperatures and circular pits at high temperatures, with apparently no change in the kinetic law. A kinetic Monte Carlo model allows rationalizing these findings in terms of the competitive oxidation of armchair and zig-zag edge sites and provides an estimate of the rate laws associated to these two events. Extended to three dimensions, the model also explains the "in-depth" transition between the stepwise hexagons and the hemispheres observed by atomic force microscopy. | |
| dc.language.iso | en | |
| dc.publisher | American Institute of Physics | |
| dc.subject.en | Atomic force microscopy | |
| dc.subject.en | Graphite | |
| dc.subject.en | High-temperature effects | |
| dc.subject.en | Monte Carlo methods | |
| dc.subject.en | Oxidation | |
| dc.subject.en | Scanning electron microscopy | |
| dc.subject.en | Solid-state phase transformations | |
| dc.title.en | Temperature induced transition from hexagonal to circular pits in graphite oxidation by O<sub>2</sub> | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1063/1.3615801 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Applied Physics Letters | |
| bordeaux.page | 044102 (3 p.) | |
| bordeaux.volume | 99 | |
| bordeaux.issue | 4 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00618148 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00618148v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Physics%20Letters&rft.date=2011&rft.volume=99&rft.issue=4&rft.spage=044102%20(3%20p.)&rft.epage=044102%20(3%20p.)&rft.eissn=0003-6951&rft.issn=0003-6951&rft.au=DELEHOUZ%C3%89,%20Arnaud&REBILLAT,%20Francis&WEISBECKER,%20Patrick&LEYSSALE,%20Jean-Marc&EPHERRE,%20Jean-Fran%C3%A7ois&rft.genre=article |
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