Synthesis, Structure, and Superconducting Properties of NbC Nanorods and Nanoparticles
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- Fukunaga Akihiko
- Department of Materials Science and Engineering, Carnegie Mellon University
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- Chu Shaoyan
- Department of Materials Science and Engineering, Carnegie Mellon University
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- McHenry Michael E.
- Department of Materials Science and Engineering, Carnegie Mellon University
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- Nagumo Michihiko
- Department of Materials Science and Engineering, Waseda University
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Abstract
NbC nanorods and nanoparticles have been synthesized using a vapor-solid reaction path starting with carbon nanotube precursors. Their structures are studied using XRD, TEM, and HRSEM. Their superconducting properties of nanoparticles were also characterized using a SQUID magnetometer. For reactions at lower temperatures, NbC nanorods (10∼20 nm) which replicate the precursor carbon nanotubes are observed. For reactions at higher temperature, coarsened NbC nanoparticles (100∼500 nm) are observed which have spherical or faceted morphologies. A morphological Rayleigh instability can be applied as initiating the transition from NbC nanorod to nanoparticle morphologies. NbC nanoparticles with a little larger lattice parameter show a higher Tc than stoichiometric bulk NbC.
Journal
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- Materials Transactions, JIM
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Materials Transactions, JIM 40 (2), 118-122, 1999
The Japan Institute of Metals
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Keywords
Details 詳細情報について
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- CRID
- 1390001204246374272
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- NII Article ID
- 130003557161
- 10003805525
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- NII Book ID
- AA10699969
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- COI
- 1:CAS:528:DyaK1MXisVWrurg%3D
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- ISSN
- 2432471X
- 09161821
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- NDL BIB ID
- 4658704
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed