期刊
CERAMICS INTERNATIONAL
卷 41, 期 6, 页码 7971-7976出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.02.139
关键词
Electric conductivity; Photo-polymerization; Polymer-derived amorphous SiCN; Acrylic acid
资金
- National Natural Science Foundation [51372202]
- State Key Laboratory of Solidification Processing [82-TZ-2013]
- 111 Project [B08040]
The effect of acrylic acid additive on the electric conductivity of amorphous SiCN derived from polymeric precursor was studied. The conductivity showed to follow the Arrhenius dependence on pyrolysis temperature, but with much smaller activation energy, as compared to the unmodified SiCN. Structural analysis using Raman and XPS revealed that the size of the free-carbon clusters within the AC-modified SiCN changed with pyrolysis temperature, but the sp(2)-to-sp(3) ratio remained almost the same. The reason for the effect of AC on the carbon cluster was speculated. The mechanisms governing the conductivity behavior of the AC-modified SiCN were discussed. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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