Synthesis of Nanostructured Silicon Carbide Films Through Spray Pyrolysis of Ball-Milled Silicon


  • The authors are extremely grateful to Prof. A. R. Verma, Prof. S. K. Joshi, Prof. R. S. Tiwari, and Dr. A. Srivastava for their encouragement and fruitful discussions. The authors acknowledge with gratitude the financial support from DST (NSTI), Council of Scientific and Industrial Research (CSIR), and Ministry of Non-conventional Energy Sources (MNES), New Delhi, India. D. P. Singh is grateful to the University Grant Commission (UGC) for financial support.


Freestanding nanocrystalline films of silicon carbide (see Figure) can be synthesized employing a simple route—spray pyrolysis of ball-milled silicon. The silicon–hexane slurry was spray pyrolized in a silica tube at a constant temperature of 1000–1100 °C. XRD and SEM studies show the as synthesized films to be nanocrystalline α-SiC, with average crystallite size 90–125 nm, and a thickness of a few micrometers.