Low-temperature synthesis of silicon carbide powder using shungite

Agnieszka Gubernat, Waldemar Pichór, Radosław Lach, Dariusz Zientara, Maciej Sitarz, Maria Springwald
2017 Boletín de la Sociedad Española de Cerámica y Vidrio  
Available online xxx Keywords: Silicon carbide Abrasives powder Shungite Low-temperature synthesis a b s t r a c t The paper presents the results of investigation the novel and simple method of synthesis of silicon carbide. As raw material for synthesis was used shungite, natural mineral rich in carbon and silica. The synthesis of SiC is possible in relatively low temperature in range 1500-1600 • C. It is worth emphasising that compared to the most popular method of SiC synthesis (Acheson
more » ... where the temperature of synthesis is about 2500 • C) the proposed method is much more effective. The basic properties of products obtained from different form of shungite and in wide range of synthesis temperature were investigated. The process of silicon carbide formation was proposed and discussed. In the case of synthesis SiC from powder of raw materials the product is also in powder form and not requires any additional process (crushing, milling, etc.). Obtained products are pure and after grain classification may be used as abrasive and polishing powders.
doi:10.1016/j.bsecv.2016.04.003 fatcat:j5xg5g4wxzcw3agaqehc5xopni