Fused silica or fused quartz is a glass-type material. It has a fairly low density relative to other glass and glass-ceramics in the database. The properties of fused silica include two common variations. The property values on this page show ranges across all of them. For more specific values, follow the links immediately below. The
You can process forming of fused quartz and fused silica as any other glass. The processes can be grouped in the general sections: Mechanical processing Hot forming In the following, we want to give you some general information regarding these processes and what is specific to fused silica. Mechanical Processing Due to its hardness, fused
One of the most important thermal properties of fused quartz is its extremely low coefficient of thermal expansion: 5.5 x 10-7 /°C (20-320 °C). Its coefficient is 1/34 that of copper and only 1/7 of borosilicate glass. This makes the material particularly useful for optical flats, mirrors, furnace windows and critical optical applications which require minimum
Glassblowing, the practice of shaping a mass of glass that has been softened by heat by blowing air into it through a tube. Glassblowing was invented by Syrian craftsmen in the area of Sidon, Aleppo, Hama, and Palmyra in the 1st century BC, where blown vessels for everyday and luxury use were produced commercially and exported to all parts of the Roman
Glass is a state of matter. It is a solid produced by cooling molten material so that the internal arrangement of atoms, or molecules, remains in a random or disordered state, similar to the arrangement in a liquid. Such a solid is said to be amorphous or glassy. Ordinary solids, by contrast, have regular crystalline structures. The
Fused quartz glass is made of pure quartz, differing from traditional glass in containing no other ingredients. Fused silica has high working and melting temperatures, and has superior optical and thermal properties to other types of glass. Fused quartz glass also has better UV transmission than other types of glasses, and an extremely low coefficient
At Machined Quartz, we specialize in the manufacturing and fabrication of a variety of custom clear fused quartz fabrication products. The beaker shown here is of a custom size, of which only two were made. They are designed to hold, pour, and measure chemical substances, usually in their liquid state. Measuring 450mm in height, they were
An important consideration for today’s users of fused quartz use guidelines is the availability of technical product support. Momentive Performance Materials Quartz backs its products with fully-equipped analytical and development laboratories and a staff of materials and fusion experts available to support customer requirements. State-of-the-art analytical equipment assures optimal production quality and also enables certification
Glassware is found in abundance in laboratories and comes in all shapes and sizes. Though it has become preferable in recent years to substitute glass vessels for cheaper, more durable, and less fragile plastic materials, some substances and experiments or applications still require the use of glassware. The reasons for these are manifold. Firstly, glass
Attached to the tool belt of every optical designer is a staggering variety of materials from which to choose. However, from high and low index optical glasses, absorptive filters, various crystals, composites, and plastics, very few can boast the wide-ranging appeal of fused silica. In terms of application, this high purity, non-crystalline material is often
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