What Is Fused Quartz?
What Is Fused Quartz?
Fused quartz is a type of glass made from silica. Its amorphous nature makes it different from other commercial glasses. Most other types of glass have other ingredients added to them to change their properties and lower their melt temperature. Fused quartz is almost entirely silica. This makes it a great choice for jewelry and other types of applications where clear, smooth glass is needed.
Fused quartz is similar to fused silica, but it has less OH than its silica counterpart. Fused quartz is also extremely pure, with a low thermal expansion coefficient and a high chemical resistance. Fused quartz can be CNC milled, CNC-drilled, and polished to any surface finish, making it a versatile material for jewelry and other applications.
Fused quartz is widely used in the semiconductor industry. It has excellent optical transmission properties from the ultraviolet to infrared. Other applications for this material include laboratory equipment. It is also resistant to chemicals, acids, and water. It is unaffected by hydrofluoric and phosphoric acids. Fused quartz also has high dielectric strength and excellent thermal shock resistance. It is also impermeable to gases, making it useful in a wide range of applications.
Fused quartz is used in high-Q resonators. Some examples of these include wine-glass resonators and hemispherical resonator gyros. It is also used in glass instruments like harmonicas. Its optical properties are higher than the properties of lead crystal and provide a wider dynamic range.
In order to produce fused quartz, a high-temperature flame heats a mass of quartz sand. The quartz then cools. The resulting viscous melt is then drawn through a die at the bottom of the tank and formed into the desired shape. This process produces transparent fused quartz with desired cross-sections, such as square, round, and rectangular. It is then mechanically polished to make it crystal-clear.
Fused quartz can be manufactured using either natural quartz or synthetic precursors. In the first step, natural quartz is passed through a high-temperature chamber where a flame of hydrogen/oxygen passes through it to fuse the materials. In the second step, silicon tetrachloride (SiCl4) is used as a synthetic precursor.
Fused quartz and fused silica are chemically similar. The main difference between these two types of quartz is in the purity of the materials. Quartz is naturally occurring and contains impurities. Quartz has a variety of properties and is considered a specialty material. A fused quartz pendant, for example, can have a high-quality, durable look.
The most popular use of fused quartz in jewelry is to make lenses and windows. The material's high purity allows it to be used in UV windows and lenses. It can also be used in optical instruments such as microscopes.
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