Electric Conductivity And Microstructure Evolution Of Polymer-Derived Sialco Ceramics

Keywords

Activation energy; Electric conductivity; Polymer-derived ceramic; SiAlCO

Abstract

The electric conductivity and microstructure of polymer-derived SiAlCO ceramic were studied. The conductivity increased drastically with increasing pyrolysis temperature and exhibited a typical Arrhenius dependence on pyrolysis temperature with the activation energy of ~7.15 eV. The microstructure was analyzed by XRD, Raman spectroscopy and XPS. Unlike previous reported PDCs, the increase in the conductivity of the SiAlCO cannot be explained by the structural changes of the free carbon phase. It is speculated that the increased conductivity is possibly due to the redistribution of C-O bonds within the free carbon phase.

Publication Date

2-15-2016

Publication Title

Ceramics International

Volume

42

Issue

3

Number of Pages

4033-4038

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ceramint.2015.11.073

Socpus ID

84949604196 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84949604196

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