High temperature spherical nano-indentation of graphite crystals

High temperature spherical nano-indentation of graphite crystals

Nano-indentation at temperatures up to 600 °C has been applied to the (0001) surface of highly oriented pyrolytic graphite using a spherical diamond tip (∼10 μm diameter). Cross-sectional observations of the indentations by dark field scanning transmission electron microscopy show an increased tende...

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Veröffentlicht in:Carbon (New York) 2022-05, Vol.191, p.236-242
Hauptverfasser: Marrow, T.J., Šulak, I., Li, B.-S., Vukšić, M., Williamson, M., Armstrong, D.E.J.
Format: Artikel
Sprache:eng
Schlagworte:
deformation
Diamonds
graphene
Graphite
High temperature
Kink band
Nanoindentation
Nanoparticles
Pyrolytic graphite
Scanning electron microscopy
Scanning transmission electron microscopy
temperature
transmission electron microscopy
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Zusammenfassung:Nano-indentation at temperatures up to 600 °C has been applied to the (0001) surface of highly oriented pyrolytic graphite using a spherical diamond tip (∼10 μm diameter). Cross-sectional observations of the indentations by dark field scanning transmission electron microscopy show an increased tendency at high temperature for inelastic deformation by buckling of the graphite crystals with kink formation. [Display omitted]
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2022.01.067