Abstract
Heat-treated rice hulls have been used as precursor material for synthesis of ultrafne SiC in a RF plasma reactor. Rice hulls containing finely distributed silica and active carbon act as a source for SiC formation. The plasma-synthesized powder contained ultrafnc β-SiC with excess carbon and some unreacted silica. Post-treatment processes such as oxidation and acid (HF) treatment appear to be effective in removing the excess carbon and silica.
Original language | English (US) |
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Pages (from-to) | 447-461 |
Number of pages | 15 |
Journal | Plasma Chemistry and Plasma Processing |
Volume | 13 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1 1993 |
Keywords
- Rice hulls
- thermal plasma synthesis: ultrafine SiC