Quartz Glass
Moncrieff offers a full spectrum of products produced from high-purity Silicon Oxide Glass in 3 different grades according to the light transmission required. Our products are available in flat Glass, Tubular Glass, and also in formed shapes, bowls, hollow ware, boats etc
Quartz Glass has several technical qualities that are in demand by industry. The key features of which are summarized below.
Key Features:
- It resists temperatures to 1200°C with very low thermal expansion.
- It is very hard up to Mohs 7.
- It is perfectly clear from Ultraviolet to Infrared range.
- Excellent resistance to chemical attack.
- Radiation resistance.
- Electrical Insulator.
The standard technical details are given below, together with the light transmission Charts for the three forms that are available.
down to 165~180 nm range:
Transmission Chart:
Quartz:
(UV optical quartz glass) JGS1
It is an optical quartz glass made from artificial stone with SiCl4 as raw material and melted by high-purity hydrogen-oxygen flame. Therefore, it contains a large amount of hydroxyl groups (about 2000 ppm) and has excellent UV transmission properties. Especially in the short-wave UV region, its transmission properties are far superior to all other types of glass. The UV transmittance at 185nm can reach 90% or higher. Synthetic quartz glass has a strong absorption peak at 2730 nm and has no grain structure. It is an excellent optical material in the range of 185-2500nm.
(UV optical quartz glass) JGS2
It is quartz glass refined by gas with crystal as raw material and contains dozens of PPM metal impurities. There is an absorption peak at 100nm (the hydroxyl content is 200-2730ppm), and it has a stripe and granular structure. It is an excellent material in the 220-2500 nm band range. We use this glass for the preparation of sight glasses, panels, and pressed items.
(Infrared optical quartz glass) JGS3
It is a quartz glass produced from crystal or high-purity quartz sand through a vacuum pressure furnace (ie, electric melting method), which contains dozens of PPM metal impurities. It has small air bubbles, grain structure and stripes, almost no OH, and high infrared transmittance. The light transmittance exceeds 85%. Its application range is 260-3500 nm optical materials.
Quartz Sight Glass
Known for its clarity and temperature resistance to 1200°C. these Sight Glasses are available up to 400mm Diameter in circular form as well l as other flat panels and discs. These are most typically used as observation panel to allow viewing into high temperature vessels and also where chemical; attack is possible..
If glass to 300°C would suit, please visit this page
We can offer the flat glass in thickness from 1mm up to 40mm.
A few examples of the types of products that can be offered are listed in the slide show below.
Quartz Tubes and Rods
We have a page dedicated to Quartz Glass Tubes and Rods, the link can be found here.
Quartz Glass Formed Parts
Quartz Glass can be heated, manipulated and formed into any number of shapes for industrial applications in the Semi-Conductor, Optical, Power and Chemical Industries, amongst many others.
Example Quartz Parts
