SiO2 Crystal Fused Quartz Plate 2inch 6inch High Hardness Quartz
Glass
optical glass lens, quartzs glass plates ,quartz optical windows,
sio2 quartzs substrates, GS1,GS2 quartz cover lens
Quartz crystal introduction
Quartz crystals are silicon dioxide, SiO2. Pure quartz crystals are
colorless, but impurities in the structure lead to beautifully
colored gems, including amethyst, rose quartz, and citrine. Most
natural quartz crystallizes from magma or precipitates from hot
hydrothermal veins.
Although man-made quartz is produced, the process requires heat not
generally possible in a home setting. It's not a crystal most
people want to try to grow at home since perfect crystals require
specialized equipment. Synthesized quartz is made using the
hydrothermal process in an autoclave. You probably don't have one
of those in your kitchen, but you may have a smaller equivalent--a
pressure cooker.
Growing Crystals With a Pressure Cooker
If you are truly determined to grow quartz crystals at home, you
can grow small crystals by heating silicic acid in a pressure
cooker. Silicic acid can be made by reacting quartz with water or
by acidification of sodium silicate in aqueous solution.
The main problem with either technique is that silicic acid has a
tendency to turn into silica gel. However, it is possible to
synthesize quartz crystals with a pressure cooker. In 1845, the
German geologist Karl Emil von Schafhäutl succeeded in making
quartz the first crystal grown by hydrothermal synthesis. Modern
techniques can be used to grow large single crystals, but you
shouldn't expect fabulous gems from a home canning system.
Characteristics and superiority
- very high purity
- excellent elasticity
- superior compressive strength
- withstands extremely high temperature
- extremely low thermal expansion
- high thermal shock resistance
- low thermal conductivity
- essentially impermeable to gases
- outstanding optical transmission properties
- extraordinary chemical resistance
- high resistivity
- high dielectric strength
Applications
Polished Quartz Glass main application military industrial complex, machinery,
metallurgy, printing and dyeing, optical instruments, high temperature sight glasses,
fire hole industries such as high temperature and other industries,
electric light source
equipment, Labortory instrument, chemical apparatus.
Product description
other crystal and customized shape optical lens also can be
provided.
