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Preparation and Characterization of Axial Gradient Silicon Carbide Fibers with Sinusoidal Electrical Resistivity
College of Science, National University of Defense Technology, Changsha, China
College of Science, National University of Defense Technology, Changsha, China
College of Science, National University of Defense Technology, Changsha, China
College of Science, National University of Defense Technology, Changsha, China
- 1 College of Science, National University of Defense Technology, Changsha, China
- 2 College of Science, National University of Defense Technology, Changsha, China
- 3 College of Science, National University of Defense Technology, Changsha, China
- 4 College of Science, National University of Defense Technology, Changsha, China
Journal of Materials Science and Chemical Engineering·Volume 04 (2016)·Pages 58–64·Published 1 December 2016·DOI10.4236/msce.2016.412007
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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.
KeywordsSilicon CarbideFiberElectrical PropertySinusoidal
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