File Name: glass properties and uses .zip
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Glass , an inorganic solid material that is usually transparent or translucent as well as hard, brittle, and impervious to the natural elements. Glass has been made into practical and decorative objects since ancient times, and it is still very important in applications as disparate as building construction , housewares, and telecommunications. It is made by cooling molten ingredients such as silica sand with sufficient rapidity to prevent the formation of visible crystals. A brief treatment of glass follows. Glass is treated in detail in a number of articles. Stained glass and the aesthetic aspects of glass design are described in stained glass and glassware.
Glass is a non- crystalline , often transparent amorphous solid , that has widespread practical, technological, and decorative use in, for example, window panes, tableware , and optics. Glass is most often formed by rapid cooling quenching of the molten form; some glasses such as volcanic glass are naturally occurring. The most familiar, and historically the oldest, types of manufactured glass are "silicate glasses" based on the chemical compound silica silicon dioxide, or quartz , the primary constituent of sand. The term glass , in popular usage, is often used to refer only to this type of material, although silica-free glasses often have desirable properties for applications in modern communications technology. Some objects, such as drinking glasses and eyeglasses , are so commonly made of silicate-based glass that they are simply called by the name of the material.
When you hear the term "glass" you may think of window glass or a drinking glass. However, there are many other types of glass. Glass is the name given to any amorphous non-crystalline solid that displays a glass transition near its melting point. This is related to the glass transition temperature , which is the temperature where an amorphous solid becomes soft near its melting point or a liquid becomes brittle near its freezing point.
Brittany Henneberry. Soda lime glass is often contrasted with its cousin, borosilicate glass , which is discussed in more detail here. Soda lime glass is made mostly from three basic components.
Оказавшись наконец в шифровалке, Сьюзан почувствовала, как на нее волнами накатывает прохладный воздух. Ее белая блузка промокла насквозь и прилипла к телу. Было темно.
Святилище и алтарь расположены над центром и смотрят вниз, на главный алтарь. Деревянные скамьи заполняют вертикальную ось, растянувшись на сто с лишним метров, отделяющих алтарь от основания креста. Слева и справа от алтаря в поперечном нефе расположены исповедальни, священные надгробия и дополнительные места для прихожан.
Metallic glasses or amorphous metals are novel engineering alloys in which the structure is not crystalline as it is in most metals but rather is disordered, with the atoms occupying more-or-less random positions in the structure.Reply
PDF | Properties of glasses like the density, viscosity, thermal expansion coefficient, The optimum stress relaxation temperature to use.Reply
Glass is a non-crystalline amorphous solid that is often transparent and has widespread practical, technological, and decorative usage in, for example, window panes, tableware, and optoelectronics.Reply