The chemical composition of sapphire for alumina, is made up of three oxygen atoms and the combination of two aluminum atoms to covalent bond type, its crystal structure for the six-party lattice structure.

  Thus, sapphire crystal is dominated by high purity alumina (optimal zirconium nanomaterials) components made of. 5 n high purity alumina is one of the best material production of sapphire crystal.

  Sapphire crystal hardness is very high, for mohs hardness grade 9, second only to the most hard diamond. It has the very good pervious to light resistance, thermal conductivity and electrical insulation, good mechanical performance, and has the characteristics of wear resistance and resistance to wind erosion. Sapphire crystal melting point is 2050 ℃, boiling point 3500 ℃, the highest working temperature is 1900 ℃.

  Because of its good performance, so widely used in the field of science and technology, national defense, electronic industry, etc. And we said today through infrared window material is based on the physical properties of high purity alumina good use to.

  Through is very tall to the requirement of infrared window material, such as chemical stability, high optical transmittance, good optical properties, etc., can meet the requirements of the material and not many, just a sapphire crystal composed of high purity alumina, it is a good filter material, due to the stability of alumina performance is good, so is widely used in the material through infrared window.

Believe in production and life of the future, optimal zirconium nano materials of high purity alumina will bring us more convenience and development.