synthetic quartz

synthetic quartz

[sin′thed·ik ′kwȯrts]
(materials)
A quartz crystal grown commercially at high temperature and pressure around a seed of quartz suspended in a solution which contains scraps of natural quartz crystals.
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These properties make fused silica highly applicable in semiconductor manufacturing industries for quartz wafer processing and for the production of synthetic quartz photomasks.
and Rossman, G.R.: 1984, Hydrogen speciation in synthetic quartz. Phys.
Fabian Schmitz (German Gemmological Association, Idar-Oberstein) provided an overview of the coloration and identification of natural and synthetic quartz. The various colours shown by quartz are due to colour centres (natural as well as laboratory-induced) and inclusions.
Both Nissin Chemical and Shin-Etsu MicroSi are wholly owned subsidiaries of ShinEtsu Chemical, the world's largest supplier of semiconductor materials and silicones, PVC resins, synthetic quartz glass and methylcellulose.
The synthetic quartz bulb produces light across the entire spectrum, from 170nm through visible and into the infrared.
In fact, Green Energy has been expanding output of synthetic quartz crystals, which will be sufficient enough to turn out 1-1.5 gigawatts of solar cells by the end of the year.
Manufactured from high-purity synthetic quartz with polyimide protective coating, the capillary tubing is available in standard inner diameters ranging from 2-700 m with outer diameters from 90-850 m.
Microfluidics expert Dolomite has announced it has now optimised the fabrication of quartz microfluidic chips, enabling instrument manufacturers to benefit from the many important qualities of synthetic quartz for use within bioscience and medical systems.
Total lubricants are available in a wide variety of range which includes fully synthetic Quartz 9000 5w40, semi synthetic Quartz 7000 10w40, Quartz 4x4 specially developed semi synthetic lubricant for 4 wheel drives and Quartz 5000 20w50.
Asahi Glass' electronics division makes high-purity silicon carbide and synthetic quartz glass for semiconductors and glass substrates for such products as liquid crystal displays (LCDs).
Strongly superlinear dose dependence of thermoluminescence in synthetic quartz. "J.