quartz refractory
Смотреть что такое "quartz refractory" в других словарях:
Fused quartz — A sphere manufactured by NASA out of fused quartz for use in a gyroscope in the Gravity Probe B experiment. It is one of the most accurate spheres ever created by humans, differing in shape from a perfect sphere by no more than 40 atoms of… … Wikipedia
industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… … Universalium
Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide … Wikipedia
traditional ceramics — Introduction ceramic materials that are derived from common, naturally occurring raw materials such as clay minerals and quartz sand. Through industrial processes that have been practiced in some form for centuries, these materials are made … Universalium
silica 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… … Universalium
metamorphic rock — Any of a class of rocks that result from the alteration of preexisting rocks in response to changing geological conditions, including variations in temperature, pressure, and mechanical stress. The preexisting rocks may be igneous, sedimentary,… … Universalium
sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… … Universalium
Astrobleme de Rochechouart-Chassenon — Astroblème de Rochechouart Chassenon Astroblème de Rochechouart Chassenon Image de synthèse du cratère quelques années après l’impact. Localisation Astre … Wikipédia en Français
Astroblème De Rochechouart-Chassenon — Image de synthèse du cratère quelques années après l’impact. Localisation Astre … Wikipédia en Français
Astroblème de Chassenon — Astroblème de Rochechouart Chassenon Astroblème de Rochechouart Chassenon Image de synthèse du cratère quelques années après l’impact. Localisation Astre … Wikipédia en Français
Astroblème de Rochechouart — Chassenon Astroblème de Rochechouart Chassenon Image de synthèse du cratère quelques années après l’impact. Localisation Astre … Wikipédia en Français
