Silicon Carbide Fibers Derived from Polycarbosilane Doped with Iodine as Oxygen Inducer 


Vol. 53,  No. 6, pp. 385-390, Dec.  2016
10.12772/TSE.2016.53.385


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  Abstract

Silicon oxycarbides (SiOxCy) fabricated at 1300oC from iodine-doped polycarbosilane (PCS) have been shown to have high tensile strength. Iodine doping of PCS can induce oxygen atoms into the molecular structure of PCS, which forces it to start cross-linking at a relatively low temperature of 180oC. The mechanical properties of fabricated SiC fibers strongly depend on the degree of cross-linking during stabilization. In this study, the role of oxygen in the cross-linking reaction of PCS was investigated by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TG), scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) analysis.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)