Articles
  • Effect of pyrolysis temperature on heat-generating behavior and morphology of SiC fiber mats

  • Young Jun Jooa,b, Kwang Youn Chob,* and Cheol Jin Kima,*

  • aResearch Institute of Green Energy Convergence Technology, Gyeongsang National Univ., Jinju 52828, Korea
    bCeramic Fiber & Composites Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Korea

Abstract

Silicon carbide (SiC) fibers fabricated by melt-spinning, curing, and pyrolysis of polycarbosilane (PCS) as a ceramic precursor were used to fabricate the heat-generating mats by interaction with microwave. In this study, the effect of pyrolysis temperature on heat-generating temperature of SiC fiber mats was investigated to optimize the performance of mats via microstructure control in the fiber. SiC fibers synthesized at high pyrolysis temperature contained a relatively low oxygen content due to the residual oxygen release in the form of SiO and CO gases. The optimization of the elemental composition in SiC fiber by minimizing oxygen level enable the maximum heat-generating temperature and life-time of the SiC fiber mats under microwave. Also, the polymer-derived SiC fiber mats exhibited both oxidative- or thermal-degradation due to the non-uniform heat-generating by the edge effect under microwave.


Keywords: SiC fiber, Microwave, Heat-generating, Morphology, Degradation

This Article

  • 2019; 20(5): 563-569

    Published on Oct 31, 2019

  • 10.36410/jcpr.2019.20.5.563
  • Received on Jul 22, 2019
  • Revised on Aug 5, 2019
  • Accepted on Aug 14, 2019

Correspondence to

  • Kwang Youn Cho b and Cheol Jin Kim a

  • aResearch Institute of Green Energy Convergence Technology, Gyeongsang National Univ., Jinju 52828, Korea
    bCeramic Fiber & Composites Center, Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Korea
    Tel : +82-55-792-2710
    Fax: +82-55-792-2710

  • E-mail: kycho@kicet.re.kr