JGS2 UV fused silica window

Our OPTICAL Fused Silica products include: optical window, protection plate,  optical lens prism,  light guide column light guide bar and ultraviolet infrared quartz materials, etc. The mechanical properties of quartz glass are better than hard glass and ceramics, but the fragility is poor. The theoretical strength of quartz glass is very high, about 24x103MPa, but the actual strength measured is tens of times lower than this value. The main factors affecting the strength are the surface defects of glass, especially the size and depth of surface microcracks. The flexural strength of finely ground quartz glass samples is about 0.6 times higher than that of coarsely ground ones. Secondly, there are inherent defects, such as bubbles, uneven melting of impurities and residual hard force. The SOFTENING POINT OF QUARTZ GLASS IS 1730 DEGREES Celsius, CAN BE USED FOR a long time BELOW 1200 DEGREES Celsius, PERIOD OF TIME THE highest use temperature is 1450 DEGREES Celsius. The linear expansion coefficient of quartz glass (5.5x10-7/°) is lower than the linear expansion coefficient of all materials, and the doped quartz glass can even reach zero expansion. Because the thermal expansion coefficient of quartz glass is small, only 1/12~1/20 of glass. So there is a very good thermal vibration resistance, quartz glass sample burned to 1200℃ after the rapid drop into 20°C water, repeated 3 times without cracking. Quartz glass has its unique optical properties, it can pass through the far ultraviolet spectrum, but also can pass through the visible and near infrared spectrum. Users can choose the desired variety from 185-3500nm band range according to their needs. Due to quartz glass high temperature resistance, thermal expansion coefficient is very small, good chemical thermal stability bubble, stripe, uniformity, birefringence can be comparable to the general optical glass, so it is in a variety of harsh occasions to work with high stability of the optical system essential optical materials. Quartz glass has very high dielectric strength and very low conductivity, even at high temperature, high pressure, and high frequency, can still maintain very high dielectric strength and resistance, in the applied frequency band almost no dielectric loss, so quartz glass is an excellent high temperature dielectric insulation material. So quartz glass is widely used in the manufacture of high frequency and high voltage insulators, especially in high temperature and withstand high mechanical stress of the occasion is more suitable. (breakdown voltage 11 kV/mm).

Quartz glass is an acid material, in addition to hydrogen fluorine and hot phosphoric acid, any other acid are inert, is the best acid resistant material. Compared with ordinary glass, quartz glass is not moisture absorption and weathering. The corrosion degree of alkali and salt to quartz glass at room temperature is also very small, so the use of quartz glass in these reagents is not excluded. The acid resistance of quartz glass is 30 times that of ceramic, 150 times that of stainless steel, especially the chemical stability at high temperature, is unmatched by any other engineering materials. The structure of quartz glass is very relaxed, even at high temperature also allows some gas ions to diffuse through the network, and the diffusion of sodium ions is the fastest.