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Microwave-Assisted Heating of Electrospun SiC Fiber Mats

  • Khishigbayar, Khos-Erdene (Ceramic Fiber and Composite Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Joo, Young Jun (Ceramic Fiber and Composite Center, Korea Institute of Ceramic Engineering and Technology) ;
  • Cho, Kwang Youn (Ceramic Fiber and Composite Center, Korea Institute of Ceramic Engineering and Technology)
  • Received : 2017.07.20
  • Accepted : 2017.09.27
  • Published : 2017.11.30

Abstract

Flexible silicon carbide fibrous mats were fabricated by a combination of electrospinning and a polymer-derived ceramics route. Polycarbosilane was used as a solute with various solvent mixtures, such as toluene and dimethylformamide. The electrospun PCS fibrous mats were cured under a halogen vapor atmosphere and heat treated at $1300^{\circ}C$. The structure, fiber morphology, thermal behavior, and crystallization of the fabricated SiC fibrous mats were analyzed via scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermal imaging. The prepared SiC fibrous mats were composed of randomly distributed fibers approximately $3{\mu}m$ in diameter. The heat radiation of the SiC fiber mats reached $1600^{\circ}C$ under microwave radiation at a frequency of 2.45 GHz.

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