These materials can routinely withstand temperatures of over 950☌ and due to their very low coefficient of thermal expansion can be rapidly heated and cooled with virtually no risk of breakage due to thermal shock. The very high purity (over 99.9%) ensures minimum contamination in process applications. UV-IR grade of synthetic FS (KS-4V) produced by complex process which involves chemical gasification of silicon, oxidation of this gas to silicon dioxide (SiO 2), and thermal fusion of the resulting ash in vacuum.īoth Synthetic Fused Silica grades are ultra pure, single component glasses with a unique combination of thermal, optical and mechanical properties, which make them the preferred materials for use in a variety of processes and applications where other materials are not suitable.UV grade of synthetic FS (KU-1) produced by continuous high temperature hydrolysis of silicon tetrachloride - SiCl4 in hydrogen-oxygen flame.Synthetic Fused Silica is made from a silicon-rich chemical precursor and there are two main grades of the material which are widely utilized for optical manufacturing: This opacity is caused by very small air bubbles trapped within the material. Fused Quartz is normally transparent.įused Silica is produced using high purity silica sand as the feedstock and is normally melted using an electric furnace, resulting in a material that is translucent or opaque. They are manufactured using several different processes.įused Quartz is made by melting of high purity naturally occurring quartz crystals at around 2000☌ using either an electrically heated furnace (electrically fused) or a gas/oxygen-fuelled furnace (flame fused). Check our online resources and eBooks to learn more, or call the team for more insight - we’ll find just the right glass for your next project.Download Quartz Glass Datasheet (PDF, 119 KB)įused Quartz and Fused Silica are types of Quartz Glass containing primarily silica in amorphous form. We stock a range of quartz and fused silica glasses from different manufacturers, each with its own particular strengths. In/In/F Coefficient of Thermal Expansion. Remember to evaluate the key traits you need, even once you’ve narrowed your search to a high-performance material: Having a wide range of choices makes it easy to find the perfect glass for your next project, but it also requires careful consideration and attention to subtle qualities. The Swift Glass Team specializes in custom work, and we’re proud to maintain a vast material inventory. Extremely low coefficient of expansion (very shock resistant).High Performance Materials at Swift Glassīoth of these materials are ideal for semiconductor fabrication, technical and laboratory equipment. Retains some residual impurities from water vapor in processing (affects infrared transparency).Significant transparency into deep ultraviolet.Crafted from silicon gas or silica sand (non-crystalline).Because of the way fused silica is made, it has superior ultraviolet performance to natural quartz and is ideal for applications such as UV transmitting optics. It has the highest temperature characteristics of any glass, and it often begins as pure silicon gas. Retains some residual impurities from raw material (affects ultraviolet transparency)įused Silica is an entirely synthetic material, and is technically the purest glass.Crafted from naturally occurring crystalline quartz or silica grains.In production, quartz glass or fused quartz is created from grains of natural material that are melted and purified. Quartz is a very versatile, naturally occurring substance with good electrical, optical and thermal performance and corrosion resistance. Both are highly specialized, but their particular performances vary. While they’re often used interchangeably, the fundamental structures and creation of quartz and fused silica are different. Quartz, Fused Quartz and Fused Silica are all part of an extremely pure family of materials with high working and melting temperatures and superior optical properties as well as low coefficient of expansion. If your project demands high performance material, you may have more options than you think. Posted by Sheila Reynolds on Septem9:06 am | 2 Comments Custom Glass for 3D Printing Applications.Schott BOROFLOAT® Glass for the Lighting Industry.Prism Rods for Aerospace, Aircraft & Fluidics Industries.Annular Edge Glass for Pharmaceutical & Petrochemical Applications.MAXOS® Type A High Pressure Gauge Glass.Glass Wafer Fabrication (Borosilicate & Quartz).
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