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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/12831

Title: High-pressure behaviour of Ni-filled and Fe-filled multiwalled carbon nanotubes
Authors: POSWAL, HK
KARMAKAR, S
TYAGI, PK
MISRA, DS
BUSETTO, E
SHARMA, SM
SOOD, AK
Keywords: structural transformations
iron
nickel
nanocrystals
temperature
microscopy
mechanism
Issue Date: 2007
Publisher: WILEY-V C H VERLAG GMBH
Citation: PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 244(10), 3612-3619
Abstract: The high-pressure behavior of Ni-filled and Fe-filled multiwalled carbon nanotubes has been investigated up to 27 GPa and 19 GPa, respectively, with the help of synchrotron-based angle-dispersive X-ray diffraction. These nanotubes do not show any structural transformation up to the highest pressures studied. These results are similar to that of Co-filled nanotubes [1], but are in sharp contrast to the earlier results on Fe-filled tubes [2], where the tubes were found to undergo a sudden collapse of intertube separation. Our present observations suggest that the occurrence of an isostructural phase transition in Fe3C, observed in our earlier study, may be responsible for the structural transition in nanotubes in that case.
URI: http://dx.doi.org/10.1002/pssb.200642608
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12831
http://hdl.handle.net/10054/12831
ISSN: 0370-1972
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