Fused quartz is made of high pure silicon by high temperature melting and condensation.Its main component is SiO2, and also contains Fe3+,Al3+,K+,Na+,Ca2+,Li+ and other trace elements.The fused silica has the characteristics of wear resistance, high temperature resistance and so on.Silicon is also a precious semiconductor material, so it is widely used in the fields of electronics, electric power industry, refractory materials, ceramic materials, thermal measurement, metallurgy, chemical industry, etc..