Title

Effect Of Pyrolysis Temperature On The Structure And Conduction Of Polymer-Derived Sic

Abstract

We studied the electric conductivity and structure of polymer-derived carbon-rich amorphous SiC pyrolyzed at different temperatures. The conductivity of the material increased drastically with pyrolysis temperature followed an Arrhenius relationship with the activation energy of ~3.4 eV. Raman and X-ray photoelectron spectroscopy analysis revealed that the order of free carbon phase increased with pyrolysis temperature, accompanied by sp3→ sp2 transition. The activation energy for such a structure change was 3.1-3.8 eV, which is close to that for the conductivity change. We thus believe that the increase in the conductivity was mainly due to the increase in conductivity of the free carbon phase. © 2014 The American Ceramic Society.

Publication Date

1-1-2014

Publication Title

Journal of the American Ceramic Society

Volume

97

Issue

7

Number of Pages

2135-2138

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/jace.12931

Socpus ID

84903377016 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84903377016

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