Inorganic non-metallic materials are materials composed of oxides、 carbides、 nitrides、 halogen compounds、 borides of certain elements、 as well as substances such as silicates、 aluminates、 phosphates、 and borates. It is a collective term for all materials except organic polymer materials and metal materials. The concept of inorganic non-metallic materials evolved from traditional silicate materials with the development of modern science and technology after the 1940s. Inorganic non-metallic materials are one of the three major materials alongside organic polymer materials and metal materials. The crystal structure of inorganic non-metals is much more complex than that of metals in terms of composition and structure. Having stronger ionic and mixed bonds than metal bonds and pure covalent bonds. The unique high bond energy and strength of this chemical bond endow this large class of materials with basic properties such as high melting point、 high hardness、 corrosion resistance、 wear resistance、 high strength、 and good oxidation resistance、 as well as broad conductivity、 thermal insulation、 transparency、 and good ferroelectricity、 ferromagnetism、 and piezoelectric properties. Silicate materials are one of the main branches of inorganic non-metallic materials、 and silicate materials are the main components of ceramics. Traditional inorganic non-metallic materials using traditional techniques: 1. Cement and other cementitious materials: Portland cement、 aluminate cement、 lime、 gypsum、 etc; 2. Ceramics: clay based、 feldspar based、 talc based、 and bone gray based ceramics、 etc; 3. Refractory materials: siliceous、 aluminum silicate、 high alumina、 magnesium、 chromium magnesium、 etc.、 glass silicate; 4. Enamel: steel sheet、 cast iron、 aluminum and copper tire、 etc; 5. Cast stone: diabase、 basalt、 cast stone、 etc; 6. Grinding materials: silicon oxide、 alumina、 silicon carbide、 etc; 7. Porous materials: diatomaceous earth、 vermiculite、 zeolite、 porous silicate、 and aluminum silicate; 8. Carbon materials: graphite、 coke、 and various carbon products; 9. Non metallic minerals: clay、 asbestos、 gypsum、 mica、 marble、 crystal、 diamond、 etc; [2] New inorganic non-metallic materials 1. Thermal insulation materials: aerogel felt 2. Insulation materials: (1) aluminum oxide、 beryllium oxide、 talc、 magnesium olivine ceramics、 quartz glass and microcrystalline glass; (2) Ferroelectric and piezoelectric materials: barium titanate series、 lead zirconate titanate series materials、 etc; 3. Magnetic materials: (1) Ferrites such as manganese zinc、 nickel zinc、 manganese magnesium、 lithium manganese、 magnetic recording and bubble materials; (2) Fast ion conductors for conducting ceramics、 sodium、 lithium、 oxygen ions、 and silicon carbide; (3) Semiconductor ceramics、 barium titanate、 zinc oxide、 tin oxide、 vanadium oxide、 zirconia and other filter metal element oxide materials. [3] 4. Optical materials: yttrium aluminum garnet laser materials、 alumina、 yttrium oxide transparent materials、 and optical fibers of quartz or multi-component glass. [4] 5. High temperature structural ceramics: (1) High temperature oxides、 carbides、 nitrides、 borides、 and other refractory compound superhard materials: titanium carbide、 artificial diamonds、 cubic boron nitride、 etc; (2) Artificial crystals: lithium aluminate、 lithium tantalate、 gallium arsenide、 fluorophlogopite、 etc. 6. Bioceramics: feldspar tooth materials、 alumina、 phosphate bone materials、 and enzyme carrier materials. 7. Inorganic composite materials: Ceramic based、 metal based、 and carbon based composite materials. Comparison between traditional inorganic non-metallic materials and new inorganic non-metallic materials: Traditional inorganic non-metallic materials have advantages such as stable properties、 corrosion resistance、 and high temperature resistance、 but are brittle and cannot withstand thermal shock. New inorganic non-metallic materials not only have the advantages of traditional inorganic non-metallic materials、 but also have certain characteristics such as high strength、 electrical、 optical properties、 and biological functions

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