Synthesis and characterization of silicon-silicon carbide composites from rice husk ash via self-propagating high temperature synthesis

Authors

S Niyomwas

Publication Date

2009-12-01

Abstract

Silicon-Silicon Carbide (Si-SiC) composites were synthesized by self-propagating high temperature synthesis (SHS) from a powder mixture of rice husk ash (RHA)-C-Mg. The reaction was carried out in a SHS reactor under static argon gas at a pressure of 0.5 MPa. The standard Gibbs energy minimization method was used to calculate the equilibrium composition of the reacting species. The comparison of silica from RHA and commercial sources in the precursor mixture on the Si-SiC conversion has investigated using X-ray diffraction and scanning electron microscope technique. The as-synthesized products of Si-SiC-MgO powders were leached with 0.1M HCl acid solution to obtain the Si-SiC composite powders.

First Page

21

Last Page

25

Recommended Citation

Niyomwas, S (2009) "Synthesis and characterization of silicon-silicon carbide composites from rice husk ash via self-propagating high temperature synthesis," Journal of Metals, Materials and Minerals: Vol. 19: No. 2, Article 4.
Available at: https://digital.car.chula.ac.th/jmmm/vol19/iss2/4