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The growth and morphology of core/shell heterostructured conical carbon fibers

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Title: The growth and morphology of core/shell heterostructured conical carbon fibers
Authors: Lee, Woo Jin1, Li, Chao’en1, Burke, Nick1, Trimm, David1, Patel, Jim Jim.Patel@csiro.au
Source: Carbon. Jul2011, Vol. 49 Issue 8, p2735-2741. 7p.
Subjects: Heterostructures, Carbon fibers, Silicon carbide, Hydrocarbons, Oxidation, Combustion, Methane
Abstract: Abstract: Core/shell heterostructured conical carbon fibers with silicon-based cores and graphitic carbon sheaths have been grown on silicon carbide (SiC) surfaces exposed to the combustion of methane. The conical carbon fibers (CCFs), which taper from a circular base to a point, appear to form by two simultaneous growth processes, axial tip-growth and radial fiber thickening. Radial fiber thickening results from pyrolytic carbon deposition from gas-phase hydrocarbons. Oxidation of SiC surfaces is proposed to produce gas-phase silicon oxides, which feed axial tip-growth and install the silicon-based core. The unusual morphology of the CCFs, including bending, branching, curving and tapering, is proposed to result from the action and interplay of these two simultaneous processes. [Copyright &y& Elsevier]
Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 59927565
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Woo+Jin%22">Lee, Woo Jin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Chao’en%22">Li, Chao’en</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Burke%2C+Nick%22">Burke, Nick</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Trimm%2C+David%22">Trimm, David</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Patel%2C+Jim%22">Patel, Jim</searchLink><i> Jim.Patel@csiro.au</i>
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  Data: <searchLink fieldCode="JN" term="%22Carbon%22">Carbon</searchLink>. Jul2011, Vol. 49 Issue 8, p2735-2741. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Heterostructures%22">Heterostructures</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+fibers%22">Carbon fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+carbide%22">Silicon carbide</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrocarbons%22">Hydrocarbons</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Combustion%22">Combustion</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink>
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  Label: Abstract
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  Data: Abstract: Core/shell heterostructured conical carbon fibers with silicon-based cores and graphitic carbon sheaths have been grown on silicon carbide (SiC) surfaces exposed to the combustion of methane. The conical carbon fibers (CCFs), which taper from a circular base to a point, appear to form by two simultaneous growth processes, axial tip-growth and radial fiber thickening. Radial fiber thickening results from pyrolytic carbon deposition from gas-phase hydrocarbons. Oxidation of SiC surfaces is proposed to produce gas-phase silicon oxides, which feed axial tip-growth and install the silicon-based core. The unusual morphology of the CCFs, including bending, branching, curving and tapering, is proposed to result from the action and interplay of these two simultaneous processes. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.carbon.2011.02.066
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 2735
    Subjects:
      – SubjectFull: Heterostructures
        Type: general
      – SubjectFull: Carbon fibers
        Type: general
      – SubjectFull: Silicon carbide
        Type: general
      – SubjectFull: Hydrocarbons
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Combustion
        Type: general
      – SubjectFull: Methane
        Type: general
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      – TitleFull: The growth and morphology of core/shell heterostructured conical carbon fibers
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            NameFull: Trimm, David
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              Text: Jul2011
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