pure+silica
1silica glass — n. a very clear, strong glass produced when pure silica is fused at high temperature, used as in optical instruments: see MOHS SCALE …
2silica mineral — Any of the forms of silicon dioxide (SiO2), including quartz, tridymite, cristobalite, coesite, stishovite, melanophlogite, lechatelierite, and chalcedony. Various kinds of silica minerals have been produced synthetically. * * * Introduction… …
3silica ware — noun : ware consisting of silica usually in the form of pure sand partly or wholly fused and shaped into tubes, dishes, and beakers for use as scientific apparatus …
4vitreous silica — noun colorless glass made of almost pure silica • Syn: ↑quartz glass, ↑quartz, ↑lechatelierite, ↑crystal • Derivationally related forms: ↑crystallize (for: ↑crystal), ↑ …
5Alkali Silica Reaction — (ASR) is a reaction between reactive silica (in the concrete aggregates) and an alkali (usually present in the cement), which results in the formation of a gel. This gel increases in volume with water and exerts expansive pressure on the concrete …
6Hydrated silica — is a form of silicon dioxide, which has a variable amount of water in the formula. It is also known as silicic acid, a term usually used for its form dissolved in water. It is found in nature, as opal, which has been mined as a gemstone for… …
7Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide …
8Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …
9Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …
10Optical fiber — A bundle of optical fibers A TOSLINK fiber optic audio c …
