Bulk nanostructured carbon phases prepared from C60: approaching the 'ideal' hardness

Bulk nanostructured carbon phases prepared from C60: approaching the 'ideal' hardness

New nanomaterials have been prepared by high-temperature treatment of fullerite C60 at moderate (0.1-1.5 GPa) pressures attainable for large-volume pressure apparatus. The structure, EELS spectra, Raman spectra, hardness and elastic moduli of these carbon substances have been studied. The materials...

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Veröffentlicht in:Journal of physics. Condensed matter 2007-06, Vol.19 (23), p.236209-236209 (7)
Hauptverfasser: Brazhkin, Vadim V, Solozhenko, Vladimir L, Bugakov, Vasilii I, Dub, Sergei N, Kurakevych, Oleksandr O, Kondrin, Mikhail V, Lyapin, Alexander G
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container_issue 23
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container_title Journal of physics. Condensed matter
container_volume 19
creator Brazhkin, Vadim V
Solozhenko, Vladimir L
Bugakov, Vasilii I
Dub, Sergei N
Kurakevych, Oleksandr O
Kondrin, Mikhail V
Lyapin, Alexander G
description New nanomaterials have been prepared by high-temperature treatment of fullerite C60 at moderate (0.1-1.5 GPa) pressures attainable for large-volume pressure apparatus. The structure, EELS spectra, Raman spectra, hardness and elastic moduli of these carbon substances have been studied. The materials have a high (90%) elastic recovery, fairly high hardness H~10-15 GPa and record values of the hardness-to-Young-modulus ratio H/E~0.22. The observed hardness is close to the 'ideal' limit, which is associated with the nanostructure of the materials. This structure represents a combination of interlinked curved fragments of C60 molecules and nanographite nuclei.
doi_str_mv 10.1088/0953-8984/19/23/236209
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title Bulk nanostructured carbon phases prepared from C60: approaching the 'ideal' hardness
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