β-Sialon Produced by Carbon Thermal Nitriding Reaction of Bauxite

β-Sialon was produced by carbon thermal nitriding reaction in N₂ gas atmosphere when the mixtures of bauxite and anthracite were put into vertical furnace. According to the mass loss of raw materials and the result of X-ray diffration (XRD) of products, the influences of the process parameters on the compositions and relative contents of products, such as the fixed carbon content, the flow of N₂, the soaking time and the temperature, were researched.