Optical Coating Use SiO Granule, Evaporation Materials Use SiO
Name: silicon evaporation material
Purity: 99.9% (customized)
Silicon oxide is an inorganic compound with the chemical formula of
SiO. It is black brown to loess colored amorphous powder under
normal temperature and pressure. It has a melting point of 1702 °
C, a boiling point of 1880 ° C, and a density of 2.13g/cm? 3. It is
difficult to dissolve in water, and can dissolve in the mixed acid
of dilute hydrofluoric acid and nitric acid, and release silicon
tetrafluoride. When heated in air, it will produce white silica
The role of silicon oxide
Because of its high activity, silica fume can be used as raw
materials for fine ceramics, such as silicon nitride and silicon
carbide. It is used for the preparation of optical glass and
semiconductor materials. It is evaporated in vacuum and coated on
the metal mirror used for optical instruments as a protective film.
Preparation of semiconductor materials.
There are amorphous silicon and crystalline silicon. Crystal
silicon is gray black, amorphous silicon is black, density is
2.32-2.34 g / cm3, melting point is 1410 ℃, boiling point is 2355
℃, crystalline silicon belongs to atomic crystal. It is insoluble
in water, nitric acid and hydrochloric acid, but soluble in
hydrofluoric acid and alkali solution. Hard and metallic.
1. High purity silicon is an important semiconductor material.
2. Cermet, an important material for space navigation.
3. Optical fiber communication, a new modern means of
4. Silicon organic compounds with excellent properties.
5. Silicon can improve the hardness of plant stem and increase the
difficulty of feeding and digesting by pests.