On the development of inorganic nonmetallic materials.

Answer: Inorganic nonmetallic materials include inorganic compounds and nonmetallic simple substances formed by various metals and nonmetallic elements, which have a wide variety, different uses and a long history. It is usually divided into two categories: traditional inorganic nonmetallic materials and new inorganic nonmetallic materials. Traditional inorganic nonmetallic materials mainly refer to cement, glass, ceramics, bricks, enamels, refractories and other products with natural silicates as the main raw materials, most of which are sintered bodies. With the development of modern science and technology, the development of new inorganic nonmetallic materials such as advanced structural ceramics, functional ceramics, optical fibers, laser materials, artificial crystals, piezoelectric materials, magnetic materials, bioceramics, new energy materials and eco-environmental materials is changing with each passing day. The development of inorganic nonmetallic materials in 2 1 century has the characteristics of low dimension (macro and micro), compounding (functional compounding and composition compounding of materials), intelligence and environmental friendliness. The main application fields of inorganic nonmetallic materials in 2 1 century are information, energy, transportation, biomedicine, ecological environment and national defense.