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  • Time of issue:2021-09-22 16:40:10
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Quartz glass is a single-component amorphous material of silicon dioxide. Its microstructure is a simple network composed of silicon dioxide tetrahedral structural units. Due to the large chemical bond energy of Si-O and the tight structure, quartz glass It has unique properties, especially the optical properties of transparent quartz glass. It has excellent transmittance in the continuous wavelength range of ultraviolet to infrared radiation.

Quartz glass uses high-purity silica sand as the raw material, and the traditional method of production is the melting-quenching method (heating the material to the melting temperature, and then quickly cooling to the solid phase of the glass); silicon is required to make ultra-high purity and ultraviolet transmittance transparent glass The process of vaporization, oxidation to silica and heating to dissolve.

Formation use

The formation of quartz glass is the result of the high viscosity of its melt at high temperatures. Used in the production of semiconductors, electric light sources, semi-conducting communication devices, lasers, optical instruments, laboratory instruments, electrical equipment, medical equipment and high temperature and corrosion resistant chemical instruments, chemical industry, electronics, metallurgy, building materials, national defense and other industries, applications Very extensive.

High-purity quartz glass can be used to make optical fiber.

With the development of semiconductor technology, quartz glass is widely used in various processes of semiconductor production. For example, the Czochralski method converts polycrystalline into single crystal silicon; the cleaning tank used for cleaning; the diffusion tube and the groove boat used for diffusion; the bell jar used for ion implantation, etc.


Quartz glass is a special glass containing only a single component of silicon dioxide. Due to different types, processes, and raw materials, foreign countries are often called silicate glass, quartz glass, fused quartz, fused quartz, synthetic fused quartz, and transparent, translucent, and opaque quartz without clear concepts. Our country is collectively referred to as quartz glass, which is mostly classified according to process method, use and appearance, such as fused transparent quartz glass, continuous fused quartz glass, gas-melted transparent quartz glass, synthetic quartz glass, opaque quartz glass, optical quartz glass, and quartz glass for semiconductors. , Quartz glass for electric light source, etc. People are accustomed to naming this material with a simple word like "quartz", which is absolutely inappropriate, because "quartz" is a general term for the crystalline state of silica, and it has physical and chemical properties with glassy silica. There is a difference.

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