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Pure silica (SiO 2) has a glass melting point— at a viscosity of 10 Pa·s (100 P)— of over 2300 °C (4200 °F).While pure silica can be made into glass for special applications (see fused quartz) other substances are added to common glass to simplify processing.
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Unless stated otherwise the properties of fused silica (quartz glass) and germania glass are derived from the SciGlass glass database by forming the arithmetic mean of all the experimental values from different authors (in general more than 10 independent sources for quartz glass and T g of germanium oxide glass).
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Suitable means (not shown) are provided for moving coil 8 at any desired rate along tube 9. In this apparatus the mold made of graphite is inside of a tube 9 made of suitable material such as fused quartz containing gas intake 10 and outlet 11 through which hydrogen or …
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Biophysical geoengineering compositions and methods . United States Patent 8535107 . Abstract: Described here are compositions methods and apparatus for biological and physical geoengineering. Disclosed are inorganic particles prill pucks or floats for dispersal on a body of water. These compositions are found to A) increase yields for ...
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Full text of Official gazette of the United States Patent and Trademark Office: [microform] See other formats ...
Get PriceAll-in-One -- No. 356 May 1999 - JEI
The Willoughby Ohio producer named TOMOE ENGINEERING CO. LTD. to handle three of its products: molded Pyro 220 fused-quartz crucibles which come in a broad range of sizes for growing single-crystal silicon ingots; molded PT 77 fused-quartz PyroTanks for stripping etching cleaning and other wafer processing steps where the absence of ionic ...
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Specific applications include cleanroom monitoring parenteral sampling filter in-linetesting deionizedwater processchemicals point-of-usemonitoring inertgases in-situparticle monitoring. B2.321 PB-TECHNIK AG Wafers windows OEM-components: fused quartz glass Sapphire Pyrex. Sapphire tubes. Sapphire wafers whiteLED.
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