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Ceramics


Ceramics are inorganic, non-metallic materials that have been in use for a very long time. The raw materials used in them are traditionally extracted locally. As a result, traditional ceramics exhibit the local composition of clay minerals (phyllosilicates such as kaolinite, goethite, magnesium, Aluminium and hydrogen).

Usually, water is added to a fine-grained mass of raw ceramic. The mass is then shaped and dried to become greenware so that it retains its final hardness when subsequently fired.

When ceramics are fired at lower temperatures they are usually water permeable. The process of Sintering ceramics at higher temperatures results in higher hardness and water impermeability. Mineral glazes can be incorporated during firing to protect the surfaces against external influences and achieve decorative effects.

Ceramics are differentiated in terms of hardness and fineness:

  • Earthenware
  • Stoneware
  • Creamware
  • Porcelain
  • Soapstone

Synonyme:

  • Greenware
  • Earthenware
  • Stoneware
  • Creamware
  • Porcelain
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