Research on the Effect of High-Temperature Melting [beta]-SiC by Raw Materials and Power Supply

Using high quality carbon raw material,high quality silica raw material , the [beta]-SiC powder are prepared by high-temperature vacuum smelting method. The effects of different materials and electrical power to the product of [beta]-SiC quality has been studied. The microstructure and phase analysis of [beta]-SiC powder samples were observed by Scanning Electron Microscopy and X-ray diffraction. The result shows that the raw materials are better, the product quality are better. In addition, the result also indicates that the [beta]-SiC powder have better quality when the power are 3000W.