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Using tempered glass can pose a security risk in some situations because of the tendency of the glass to shatter completely upon hard impact rather than leaving shards in the window frame. [10] The surface of tempered glass does exhibit surface waves caused by contact with flattening rollers, if it has been formed using this process.
Soda–lime glass (for containers) [2] Borosilicate (low expansion, similar to Pyrex, Duran) Glass wool (for thermal insulation) Special optical glass (similar to Lead crystal) Fused silica Germania glass Germanium selenide glass Chemical composition, wt% 74 SiO 2, 13 Na 2 O, 10.5 CaO, 1.3 Al 2 O 3, 0.3 K 2 O, 0.2 SO 3, 0.2 MgO, 0.01 TiO 2, 0. ...
Visual glass goes through a gradual progression while altering colors stages in different heat zones. [2] In order for specific light wavelengths to be reflected off of a temperature sensitive glass, it has to go through one of three main heat phases. In accelerated temperature zones, the crystals respond in the nematic phase.
Wire-mesh-reinforced glass in the Lloyd's Building. Wire mesh glass (also known as Georgian Wired Glass) has a grid or mesh of thin metal wire embedded within the glass. Wired glass is used in the US for its fire-resistant abilities, and is well-rated to withstand both heat and hose streams. This is why wired glass exclusively is used on ...
One type of coating (low-e coatings) reduces the emission of radiant infrared energy, thus tending to keep the heat on the side of the glass where it originated while letting visible light pass. This results in glazing with better control of energy - heat originating from indoors in winter remains inside (the warm side), while heat during ...
These coatings are placed on the inner pane of glass, on the outer face if less solar heat gain is desired, and on the inner face if more solar heat gain is desired. Especially when combined with double-or-triple-paned windows, the R-values achieved with low-e coatings can be quite high, with a 3-paned window filled with argon with one low-e ...
Heat-strengthened glass, or tempered glass, is glass that has been heat treated to induce surface compression, but not to the extent of causing it to "dice" on breaking in the manner of tempered glass. On breaking, heat-strengthened glass breaks into sharp pieces that are typically somewhat smaller than those found on breaking annealed glass ...
One university study shows that this heated glass technology is more efficient than other electric heating and can be more efficient than natural gas heating. [5] Some environmentalists dispute the idea that this is an efficient heating system because even high e-value windows are poor insulators compared to insulated walls, and they believe ...
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