Laborotary High Temperature Resistant Transparent Quartz Glass Instruments

Propertie

1. Optical Properties: Compared with ordinary glass, high purity quartz glass has good transmittance over a very wide spectrum from the far-ultraviolet (160 nm) to the far-infrared (5 μm), which is not available in ordinary optical glass. The excellent spectral transmittance and optical uniformity make quartz glass widely used in semiconductor lithography and precision optical devices.

2. Mechanical properties: Quartz glass is similar to ordinary glass, belongs to the brittle hard materials. The density of transparent quartz glass is about 2200~2210kg/m3, and it changes very little with temperature. The Young's modulus of transparent quartz glass is between 7000~7400MPa at room temperature, and the Poisson's ratio is between 0.15~0.17.

3. Electrical properties: Quartz glass is an excellent electrical insulating material. Compared with ordinary glass, quartz glass has a high electrical resistivity, which is as high as 1.8×1019Ω∙cm at room temperature. in addition, quartz glass has a high breakdown voltage (about 20 times that of ordinary glass) and a low dielectric loss. The resistivity of quartz glass decreases slightly with increasing temperature, and opaque quartz glass has a lower resistivity than transparent quartz glass.

4. Thermal Properties: Due to the strong Si-O bonding almost entirely within the quartz glass, it has a very high softening temperature, with a long-term operating temperature of up to 1000°C. In addition, the coefficient of thermal expansion of the quartz glass is about 1.5 times higher than that of the transparent quartz glass. In addition, the coefficient of thermal expansion of quartz glass is the lowest among common industrial glasses, with a coefficient of linear expansion of up to 5×10-7/°C. After special treatment, quartz glass can even reach zero expansion. Quartz glass also has very good resistance to thermal vibration, that is, within a short period of time repeatedly experienced great temperature differences will not crack.

5. Chemical properties: Unlike other commercial glasses, quartz glass has a very high chemical stability with respect to water and can therefore be used in water distillers where the purity of the water is very important. Quartz glass has excellent acid and salt resistance and does not react with most acids and salt solutions except hydrofluoric acid, phosphoric acid and alkaline salt solutions. Compared with acids and salt solutions, quartz glass is less resistant to alkalis and reacts with alkali solutions at high temperatures.


Application
 

Electronic field: Quartz rings can be used to manufacture transistors, integrated circuits, oscillators and other electronic components, electronic clocks, timers and other precision instruments.

Optical field: Quartz ring can be used in the manufacture of optical instruments, optical devices, optical lenses and so on. In addition, quartz rings can also be used to manufacture lasers, optical fibres and other optical devices.

Chemical industry: Quartz rings can be used to manufacture chemical reactors, catalyst carriers, filters and other chemical equipment. In addition, quartz rings can be used to manufacture high-purity chemical reagents, pharmaceutical raw materials, etc. Its high purity and stability make these chemicals have very high quality and purity.

Medical field: Quartz rings can be used to manufacture medical devices, medical equipment, medical glass and so on. Quartz rings have excellent properties such as high transparency, high heat resistance, and high corrosion resistance, making them able to withstand a variety of disinfection, sterilisation and other medical environments. In addition, quartz rings can also be used to manufacture artificial crystals, artificial bone and other medical materials.