Preparation and Characterization of Axial Gradient Silicon Carbide Fibers with Sinusoidal Electrical Resistivity

Tianjiao Hu, Xiaodong Li, Wenjing Pu, Zhenyu Xia

College of Science, National University of Defense Technology, Changsha, China.

DOI: 10.4236/msce.2016.412007                

Abstract

Two types of silicon carbide fibers with sinusoidal electrical resistivity were prepared by using different pyrolysis technology. The relationship between the microstructure and the electrical resistivity of these fibers was investigated and compared. The results indicated that carbon layer was the main conductive phase in the SiC fibers obtained by means of one step pyrolysis, whereas a free carbon phase governed the conductivity of the SiC fibers prepared through two step pyrolysis mode.

Keywords

Silicon Carbide, Fiber, Electrical Property, Sinusoidal

Conflicts of Interest

The authors declare no conflicts of interest.

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