Synthesis and characterization of Si–SiO2 nanocomposites

The bulk SiC/SiO2 nanocomposites were synthesized without the presence of catalyst by high-frequency induction heating of SiO and activated carbon fibers in the temperature of 1400 °C for 20 min. The as-synthesized materials exhibit the morphologies of self-assembly nanograss, nanocolumn and Pine-tree-branch-like nanostructure. The Si–SiO2 nanocomposites would open up new opportunities for fundamental nanodevice studies and applications.