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fused quartz sheet is a high purity glass that offers outstanding chemical resistance, exceptional optical transmission and superior thermal properties. It is available in various standard thicknesses and can be customized to meet your unique requirements.
Fused silica, also called quartz glass or fused quartz, is a pure form of silicon dioxide in an amorphous state. It is different from other commercial glasses that have impurities added to lower their working temperature and exhibit more limited optical and thermal properties.
It has a remarkable compressive strength, significant chemical resistance and high transparency to wavelengths up to a maximum of 250nm for UV applications, and is not hygroscopic. In addition, it has extremely low thermal expansion and can withstand extreme processing temperatures.
American Elements produces fused quartz in several grades, depending on the application: Mil Spec; ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia). The material is also available as a glass ceramic. Glass ceramic is clear to light amber-tinted and has many of the same thermal performance properties as quartz, sapphire and borosilicate. It is softer than quartz and borosilicate making it easier to cut with scribe cutters, but does not have the same optical clarity as fused quartz or a deep UV transparency.
Fused quartz can devitrify, or become cloudy, over time if the material is exposed to contamination during use. This process is known as devitrification and can be accelerated by the presence of alkali elements, especially sodium or calcium, in the quartz. High purity materials that have a low OH content will devitrify at a slower rate than lower quality glass.
