Borosilicate glass classification

1. Low-alkali borosilicate glass: refers to the SiO2-B2O3-R2O composition, glass with low R2O and high SiO2, with low linear expansion coefficient, low dispersion, good chemical stability, high thermal stability, and good electrical insulation. Previously glass (such as Pyrex), heat-resistant cookware, ampoule glass, neutral glass, electric vacuum glass, optical glass, LCD substrate, solar panel and heat collector.

2. Alkaline-earth borosilicate glass: refers to SiO2-B2O3-RO components, such as SiO2-B2O3-PbO components, which are used to prepare optical glass and low-temperature glaze; SiO2-B2O3-PbO/ZnO components are used for crystalline powder solder as cathode rays Tube (CRT) sealing; SiO2-B2O3-ZnO composition, used for passivation of rectifiers and electronic devices.

3. Lanthanum borosilicate glass: refers to SiO2-B2O3-La2O3-RmOn composition, such as SiO2-B2O3-La2O3-CaO-ZnO-ZrO2 composition has high refractive index, low dispersion, good chemical temperature, and low devitrification ability. Used as optical glass.

4. Rare earth doped borosilicate glass: based on SiO2-B2O3-RmOn, laser glass doped with Pr, Nd, non-linear optical glass doped with Au, Ag, Cu, doped CdS, ZnS:Mn nanocrystals Glowing glass.