Fused Silica Glass Composition

This glass is composed exclusively of high purity silica sio2 in amorphous non crystalline form chemical properties fused silica chemical composition translume works with fused silica also called fused quartz.

Fused silica glass composition.

Schott research and development summarized their physical and technical glass properties 1 5 mb. Fused quartz or fused silica is glass consisting of silica in amorphous non crystalline form it differs from traditional glasses in containing no other ingredients which are typically added to glass to lower the melt temperature. Chemical properties translume works with fused silica also called fused quartz. Quartz is one of the most common minerals in the earths crust.

Borosilicate glasses are known for having very low coefficients of thermal expansion 3 10 6 k 1 at 20 c making them more resistant to thermal shock than any other common glass. Fused silica glass is a good electrical insulator retaining high resistivity and excellent high frequency characteristics at elevated temperatures. Glass properties on globalspec glassonweb matweb glass global a general overview about glass art history science literature social studies and technology is available at the corning museum of glass view as pdf 1 8 mb. Fused silica is high purity quartz sand that has been melted to form glass.

Quartz is the most stable crystal modification at normal temperature and pressure conditions. Silicon dioxide glass quartz fused silica silicon dioxide sio 2 is the most simple chemical composition of glass. Borosilicate glass is a type of glass with silica and boron trioxide as the main glass forming constituents. The major products are divided roughly into the glassun series shaped by slip casting the glassun castable series of monolithic refractories and glassun cement.

Although the terms fused quartz and fused silica are used interchangeably the optical and. Typical of glasses it lacks long range order in its atomic structure. Fused silica sio 2 glass properties. Glass composition glass types.

Glassun refractories consist of mainly high purity fused silica materials. Such glass is subjected to less thermal stress and can withstand temperature differentials. High volume stability low volumetric expansion and high purity make fused silica a very useful and versatile material for refractory applications whether in aluminum launders or other highly cyclical applications. Fused silica is a noncrystalline glass form of silicon dioxide quartz sand.

Coefficient of expansion electrically fused quartz item unit n np s sd op 1 3 op 3hd density 3 g cm 2 2 2 2 2 2 2 02 2 1 young s modulus gpa 74 74 74 ー.