Impedance Spectroscopy Study On Polymer-Derived Amorphous Sialco

Keywords

impedance; Polymer-derived ceramic; SiAlCO

Abstract

The electric behaviors of both free-carbon phase and ceramic phase in polymer-derived amorphous silicoaluminum oxycarbide were studied by impedance spectroscopy. The results revealed that the resistance of both ceramic phase and free-carbon phase are similar to each other and decreased with pyrolysis temperature. Meanwhile, the ceramic phase showed higher capacitance than the free-carbon phase. With increasing pyrolysis temperature, the capacitance of the ceramic phase drastically decreased, but that of the free-carbon phase remained similar. Each phase exhibited a relaxation process, which moved to higher frequency with increasing pyrolysis temperature. The results are correlated with the structural evolution of the two phases.

Publication Date

4-1-2017

Publication Title

Journal of the American Ceramic Society

Volume

100

Issue

4

Number of Pages

1481-1485

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/jace.14669

Socpus ID

85010619145 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85010619145

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