fused quartz sheet is a hard, non-wetting, odourless, low outgassing material that is non-corrosive and is used in applications requiring extreme temperature stability. It can be supplied in a variety of standard thicknesses or to your own specifications, as well as custom grades.
Type I – Natural Crystalline (SiCl4)
A high purity, crystalline silica manufactured by induction melting of natural quartz crystals in a vacuum or an inert atmosphere. Typical impurities include trace amounts of lead and arsenic, which can be removed in the process.
Type II – Manufactured by fusing crystalline quartz powders in a hydrogen-oxygen flame at elevated temperatures. This method can achieve chemical purity levels up to 90%.
Grades I and II can be annealed and have relatively good thermal shock resistance to 1050 degrees C, and are a preferred material for a wide range of industrial and optical applications, particularly in lamps, viewports and instruments. They are also a good choice for protecting sensitive equipment from the elements.
Commercial to Semiconductorgrade
Transmits from 260nm to over 2 microns
Semiconductorgrade fused quartz has excellent transmittance at all wavelengths. It is used in a range of optical components including lenses, cameras and detectors as well as for semiconductor fabrication and laboratory equipment.
We supply fused quartz in a wide range of thicknesses and can offer 48h-Express for some grades. Please contact us for more information.
Fused quartz has a very high Abbe Number, making it among the lowest dispersion glasses at visible wavelengths. The refractive index is very low (nd = 1.4585), which allows it to be transparent at a lower wavelength than crystalline quartz, making it useful for UV photography. It is often used in low light transmission windows for medical applications.