SiC nanowires synthesized by microwave heating

Large-scale silicon carbide nanowires were prepared by using pure silicon powder and phenolic resin, which were mixed, molded, carbonizated, and then subjected to the microwave heating with a rate of 10 degrees C/min between 1300 degrees C and 1400 degrees C in the static argon atmosphere for 0.5-2h. The Sic nanowires were characterized by means of SEM and TEM, the composition of samples were determined through EDX. The prepared nanowires show a core-shell structure with diameters ranging from 20nm to 100 nm. The results show that liquid silicon acts as catalyst and key raw material for preparing Sic nanowires.