glass properties and uses pdf

Glass Properties And Uses Pdf

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Published: 24.04.2021

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.

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Glass: Composition, types and uses

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. Although brittle, silicate glass is extremely durable and many examples of glass fragments exist from early glass-making cultures. Archaeological evidence suggests glass-making dates back to at least 3, BC in Mesopotamia , Egypt , or Syria.

about glass

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.

PDF | Properties of glasses like the density, viscosity, thermal expansion coefficient, The optimum stress relaxation temperature to use.

All About Soda Lime Glass - Composition and Properties

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. Firstly the glass was manufactured in Egypt. Ordinary glass is manufactured by the composition of various substances like silica, bleaching powder, oxides of alkaline metals, calcium oxide lime etc. Basically glass is the homogenous mixture of the silicates of various alkaline metals of non-crystalline and transparent or less transparent substances. These constituents of the glass are transformed into fine micro powder and after fusing these are melted into the furnaces at moderate temperature and ordinary glass is prepared by a suitable cooling mechanism of the molten or liquid glass.

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