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It can also be defined as a solidified super cooled solution of various metallic silicates having infinite viscosity. It is amorphous, transparent or translucent. It is a mixture of a number of metallic silicates.

It is not simple compound but a combination of several compounds. The oxides of aluminium, silicon and magnesium are the most important materials used in the manufacturing of refractories. They can be used as linings for furnaces, kilns, incinerators and reactors. The major forms in which clay products are used as building materials are :Ī refractory material is one that can retain its strength at high temperature. Melissa is from New Jersey, United States. These moulds when dried and burned possess good strength. espanyolet is a beautifully crafted brand set up by husband and wife team Melissa Rosenbauer & Thomas Bossert. These clays can be moulded into any shape. Clay Products :Ĭlay with right amount of water possess high degree of plasticity. Whereas the same material may undergo viscous flow at some other stress conditions.īased on the internal structure, ceramics can be classified into three types.

At low temperature they deform elastically.

Ceramic knotes free#

These are bonded by ionic and covale nt bonds, as a result at this bond there are no free electrons in their structure, which makes them thermal and electrical insulators.Ceramics are hard and brittle and amorphous (non-crystalline) or glossy.Clay products are the most Common and appropriate example of ceramic materials. In present days, Ceramic is used to deflate wide range of silicates, metallic oxides and other combinations.

The word ceramics is of Greek origin ( keromos ) meaning potter’s earth or day ceramics.