Nanopowder silicon carbide and carbon/silicon carbide composites prepared by the aerosol-assisted synthesis

摘要: The liq.(Me3Si)(2) O and (OSiMe2)(n), siloxanes (optionally, in EtOH solns.) and MeSi (OMe)(3), Si (OMe)(4), Si (OEt)(4), and MeSi (OEt)(3) organosilanes were aerosolized and pyrolyzed as mists at 1200 degrees C under Ar to afford raw powders of spheroidal particle morphol. The raw powders were then pyrolyzed in bulk at 1650 C under Ar resulting in pure SIC, composite C/SiC or oxycarbide SiOxCy nanopowders analyzed then for composition, morphol, and crystallinity.