Pressure-Induced Transformation of Graphite and Diamond to Onions

In this study, we present a number of experiments on the transformation of graphite, diamond, and multiwalled carbon nanotubes under high pressure conditions. The analysis of our results testifies to the instability of diamond in the 55–115 GPa pressure range, at which onion-like structures are form...

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Main Authors: Vladimir D. Blank, Valentin D. Churkin, Boris A. Kulnitskiy, Igor A. Perezhogin, Alexey N. Kirichenko, Sergey V. Erohin, Pavel B. Sorokin, Mikhail Yu. Popov
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Crystals
Subjects:
Online Access:http://www.mdpi.com/2073-4352/8/2/68
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spelling doaj-54bc21f92e654331b349fd0bee7ab1862020-11-24T20:40:36ZengMDPI AGCrystals2073-43522018-01-01826810.3390/cryst8020068cryst8020068Pressure-Induced Transformation of Graphite and Diamond to OnionsVladimir D. Blank0Valentin D. Churkin1Boris A. Kulnitskiy2Igor A. Perezhogin3Alexey N. Kirichenko4Sergey V. Erohin5Pavel B. Sorokin6Mikhail Yu. Popov7Technological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaTechnological Institute for Superhard and Novel Carbon Materials, Centralnaya Str. 7a, 108840 Troitsk, Moscow, RussiaIn this study, we present a number of experiments on the transformation of graphite, diamond, and multiwalled carbon nanotubes under high pressure conditions. The analysis of our results testifies to the instability of diamond in the 55–115 GPa pressure range, at which onion-like structures are formed. The formation of interlayer sp3-bonds in carbon nanostructures with a decrease in their volume has been studied theoretically. It has been found that depending on the structure, the bonds between the layers can be preserved or broken during unloading.http://www.mdpi.com/2073-4352/8/2/68onionscarbonhigh pressure
collection DOAJ
language English
format Article
sources DOAJ
author Vladimir D. Blank
Valentin D. Churkin
Boris A. Kulnitskiy
Igor A. Perezhogin
Alexey N. Kirichenko
Sergey V. Erohin
Pavel B. Sorokin
Mikhail Yu. Popov
spellingShingle Vladimir D. Blank
Valentin D. Churkin
Boris A. Kulnitskiy
Igor A. Perezhogin
Alexey N. Kirichenko
Sergey V. Erohin
Pavel B. Sorokin
Mikhail Yu. Popov
Pressure-Induced Transformation of Graphite and Diamond to Onions
Crystals
onions
carbon
high pressure
author_facet Vladimir D. Blank
Valentin D. Churkin
Boris A. Kulnitskiy
Igor A. Perezhogin
Alexey N. Kirichenko
Sergey V. Erohin
Pavel B. Sorokin
Mikhail Yu. Popov
author_sort Vladimir D. Blank
title Pressure-Induced Transformation of Graphite and Diamond to Onions
title_short Pressure-Induced Transformation of Graphite and Diamond to Onions
title_full Pressure-Induced Transformation of Graphite and Diamond to Onions
title_fullStr Pressure-Induced Transformation of Graphite and Diamond to Onions
title_full_unstemmed Pressure-Induced Transformation of Graphite and Diamond to Onions
title_sort pressure-induced transformation of graphite and diamond to onions
publisher MDPI AG
series Crystals
issn 2073-4352
publishDate 2018-01-01
description In this study, we present a number of experiments on the transformation of graphite, diamond, and multiwalled carbon nanotubes under high pressure conditions. The analysis of our results testifies to the instability of diamond in the 55–115 GPa pressure range, at which onion-like structures are formed. The formation of interlayer sp3-bonds in carbon nanostructures with a decrease in their volume has been studied theoretically. It has been found that depending on the structure, the bonds between the layers can be preserved or broken during unloading.
topic onions
carbon
high pressure
url http://www.mdpi.com/2073-4352/8/2/68
work_keys_str_mv AT vladimirdblank pressureinducedtransformationofgraphiteanddiamondtoonions
AT valentindchurkin pressureinducedtransformationofgraphiteanddiamondtoonions
AT borisakulnitskiy pressureinducedtransformationofgraphiteanddiamondtoonions
AT igoraperezhogin pressureinducedtransformationofgraphiteanddiamondtoonions
AT alexeynkirichenko pressureinducedtransformationofgraphiteanddiamondtoonions
AT sergeyverohin pressureinducedtransformationofgraphiteanddiamondtoonions
AT pavelbsorokin pressureinducedtransformationofgraphiteanddiamondtoonions
AT mikhailyupopov pressureinducedtransformationofgraphiteanddiamondtoonions
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