Explanation
After the raw materials are mixed evenly, they are put into a crucible or tank furnace made of refractory materials, which can be heated in various ways. A series of chemical reactions and physical actions such as powder decomposition, reaction, mutual dissolution are completed in an oxidizing or neutral atmosphere to achieve melting, and glass is made by cooling under normal conditions. The cooling rate is 102~103Ks. A large number of glass and most varieties are obtained by this method. This method is suitable for the preparation of a variety of solid materials, but because of the low cooling rate, metals, alloy or some ionic compounds cannot be made into amorphous materials.
Classification
Inorganic non-metallic materials -> Basics of inorganic non-metallic materials