Synthesis of SiC nano-powder from organic precursors using RF inductively coupled thermal plasma

Abstract Silicon carbide (SiC) has recently drawn an enormous amount of industrial interest owing to useful mechanical properties such as its thermal resistance, abrasion resistance and thermal conductivity at high temperatures. RF inductively thermal plasma (PL-35 Induction Plasma, Tekna Co., Canada) has been utilized for synthesis of fine SiC nano-powder from organic precursors (tetraethylorthosilicate, hexamethyldisilazane and vinyltrimethoxy silane). It was found that powders exposed to thermal plasma consist of SiC with free carbon and amorphous silica (SiO 2 ), after a thermal treatment and a HF treatment, the impurities are driven off, resulting in fine SiC nano-powder. The synthesized SiC nano-powder lies between 30 and 100 nm, and the characteristics of its microstructure, phase composition and specific surface are determined by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and thermogravimetric (TG) and Brunauer–Emmett–Teller (BET) analyses.

[1]  Takamasa Ishigaki,et al.  Controlling the synthesis of TaC nanopowders by injecting liquid precursor into RF induction plasma , 2005 .

[2]  M. Zawrah,et al.  Synthesis of Silicon Carbide Nanopowder Using Silica Fume , 2010 .

[3]  M. Leparoux,et al.  Microstructure analysis of RF plasma synthesized TiCN nanopowders , 2008 .

[4]  Z. Károly,et al.  Simultaneous calcination and spheroidization of gibbsite powders in an RF thermal plasma , 2000 .

[5]  Lirong Tong,et al.  Synthesis of titanium carbide nano-powders by thermal plasma , 2005 .

[6]  Takayuki Watanabe,et al.  Spherical submicron-size copper powders coagulated from a vapor phase in RF induction thermal plasma , 2008 .

[7]  T. Srivatsan,et al.  The microstructure and hardness of silicon carbide synthesized by plasma pressure compaction , 2000 .

[8]  Takamasa Ishigaki,et al.  Controlled synthesis of alumina nanoparticles using inductively coupled thermal plasma with enhanced quenching , 2007 .

[9]  A. Jha,et al.  Formation of silicon carbide whiskers and their microstructure , 1991, Journal of Materials Science.

[10]  R. Roy,et al.  Microwave synthesis of phase-pure, fine silicon carbide powder , 2005 .

[11]  Xiaohong Shi,et al.  Silicon carbide coating to protect carbon/carbon composites against oxidation , 2005 .

[12]  Z. Károly,et al.  Synthesis of nanosized ceramic powders in a radiofrequency thermal plasma reactor , 2008 .

[13]  P. Masri.  Silicon carbide and silicon carbide-based structures: The physics of epitaxy , 2002 .

[14]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[15]  Hongsheng Zhao,et al.  Synthesis and characterization of submicron silicon carbide powders with silicon and phenolic resin , 2006 .

[16]  P. Milani,et al.  A simple method for the synthesis of silicon carbide nanorods. , 2002, Journal of nanoscience and nanotechnology.

[17]  L. Alexander,et al.  X-Ray diffraction procedures for polycrystalline and amorphous materials , 1974 .