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http://dx.doi.org/10.4191/kcers.2016.53.6.707

Heating Behavior of Silicon Carbide Fiber Mat under Microwave  

Khishigbayar, Khos-Erdene (Ceramic Fiber and Composite Materials Center, Korea Institute of Ceramic Engineering and Technology)
Seo, Jung-Min (Ceramic Fiber and Composite Materials Center, Korea Institute of Ceramic Engineering and Technology)
Cho, Kwang-Youn (Ceramic Fiber and Composite Materials Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Ceramic Society / v.53, no.6, 2016 , pp. 707-711 More about this Journal
Abstract
A small diameter of SiC fiber mat can produce much higher heat under microwave irradiation than the other types of SiC materials. Fabrication of high strength SiC fiber consists of iodine vapor curing on polycarbosilane precursor and heat treatment process. The curing stage of polycarbosilane fiber was maintained at $150-200^{\circ}C$ in a vacuum condition under the iodine vapor to fabricate a high thermal radiation SiC fiber. The structure and morphology of the fibers were characterized by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TG) and scanning electron microscopy (SEM). In this study, the thermal properties of SiC fiber mats under microwave have been analyzed with an IR thermal camera and its image analyzer. The prepared SiC fiber mats radiated high temperature with extremely high heating rate up to $1100^{\circ}C$ in 30 seconds. The fabricated SiC fiber mats were not oxidized after the heat radiation process under the microwave irradiation.
Keywords
Polycarbosilane; Silicon carbide mat; Necking; Microwave heating;
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