Magnesium-Thermal Self-Propagating High-Temperature Synthesis of Silicon Carbide Using Carbon Fibers as the Carbon Source

Abstract

This paper presents the results of studies on silicon carbide production by self-propagating high-temperature synthesis. To provide the necessary energy for the process, the synthesis was performed using magnesium-thermal reduction of silicon dioxide in an argon atmosphere. This study was characterized by the use of carbon fibers as a carbon source. It was determined that during magnesium-thermal synthesis, hexagonal particles with a size of 1 – 2 μm and a thickness of approximately 0.2 – 0.3 μm were mainly formed. X-ray phase analysis showed the predominant formation of a cubic syngony of silicon carbide.