Fused Silica (SiO2) is a synthetic molten, high purity, amorphous, non-crystalline quartz glass material with exceptional technical properties which is made by melting utmost pure ingredients. The material can be used for applications that require a very good thermal strength and an excellent optical transmission of wavelengths below the visible spectrum. The very high UV-transparency cannot be outperformed by any other industrial glass material.
Excellent thermal properties enable fused silica to hold up very strong thermal loads and allow a very high operating temperature. In addition, the low coefficient of thermal expansion of quartz glass offers a very good thermal shock resistance. Hence, amorphous quartz is often used for the fabrication of heat resistant windows, that must withstand high temperatures of up to 1000 °C without melting or breaking. Likewise, the superb chemical stability of quartz glass is one of the best. It is extremely resistant against saline solutions, acids and water. The high chemical durability of quartz glass against bases is top class. Its chemical resistivity is much higher than that of most other glass materials. Particularly the high operating temperature range and the high grade of purity, make quartz glass a perfect material choice for various semiconductor applications and for the production of semiconductor devices.
Most of our quartz glass components are fabricated out of large, non-crystalline fused silica glass block glass materials. Such a glass block is called a "quartz glass boule". This pure raw fused silica material is ground, polished, shaped and surface finished according to customer's specifications, until finally optics have emerged from the raw glass block. If required, our UV-grade quartz glass can be selected for a low content of inclusions and/or a high refractive index homogeneity. We are processing many different available quartz, fused silica or fused quartz raw glass materials with different properties from nearly any well-known raw glass manufacturer worldwide (Corning, Heraeus, Tosoh, SCHOTT, Saint Gobain, GE Quartz etc) and we make all kinds of window optics, wafers or substrates out of these different material grades.
In order to request a quotation for quartz glass slides, windows or polished fused silica substrates at custom dimensions, please use the button below. Please choose UV-grade glass for a transmission of >80% at 185nm. Choose sight glass grade for applications whenever ultraviolet transmittance and optical properties are of secondary concern or in case you want to use quartz glass due to its thermal properties only:
48-h Express Service available
(0,3 ; 0,5 ; 1,0 ; 2,0 and 3,0mm glass thickness)
48-h Express Service available
(1,0 ; 2,0 and 3,0mm glass thickness only)
For further detailed specifications, such as electrical properties, mechanical strength, impurities, index homogeneity, additional technical properties etc for the different grades of the quartz glass and fused silica materials or for information about special grades for semiconductor applications, please use our request form.