Synthesis and Characterization of SiC Nanowires

SiC-SiO₂ nanowires are synthesized by hydro-thermal and calcination methods using glucose and silicon.SiC nanowires can be synthesized at lower temperature more easily,compared with other methods.The morphology and structure of the nanowires were characterized by FTIR spectra,scanning electron micrograph(SEM),X-ray diffraction(XRD),and atomic force microscope(AFM).The SiC nanowires are wrapped with a uniform layer shell of SiO₂ and the structure of the nanowires is SiC-SiO₂ core-shell structure.The diameter of the nanowires is about 200 nm and length up to several microns.Spheres consisted of SiC and SiO₂ coexist in the nanowires.The SiC nanowires are formed by multiple vapor-liquid-solid(VLS) mechanism.