Title

Complex Impedance Spectra of Polymer-Derived Silicon Oxycarbides

Authors

Authors

K. W. Wang; B. S. Ma; Y. G. Wang;L. N. An

Comments

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Abbreviated Journal Title

J. Am. Ceram. Soc.

Keywords

LITHIUM-ION BATTERIES; CERAMICS; PIEZORESISTIVITY; TEMPERATURES; TRANSPORT; Materials Science, Ceramics

Abstract

The complex impedance spectra of polymer-derived amorphous silicon oxycarbides synthesized at different temperatures are reported. Analysis of the spectra using equivalent circuit models showed that the conduction of current is dominantly through the matrix and free carbon in series, instead of through the matrix or free carbon only. We found that the conductivity of both matrix and free-carbon phase increases with increasing synthesis temperature, whereas the relaxation time of the matrix is much shorter than that of the free carbon. The results are correlated with the structures of the materials.

Journal Title

Journal of the American Ceramic Society

Volume

96

Issue/Number

5

Publication Date

1-1-2013

Document Type

Article

DOI Link

http://dx.doi.org/10.1111/jace.12356

Language

English

First Page

1363

Last Page

1365

WOS Identifier

WOS:000318801400008

ISSN

0002-7820

Recommended Citation

"Complex Impedance Spectra of Polymer-Derived Silicon Oxycarbides" (2013). Faculty Bibliography 2010s. 4827.
https://stars.library.ucf.edu/facultybib2010/4827