Clay stuff

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Tonzeug (also: Sintergut) is an independent ceramic group, whose products sinter during the biscuit firing and unglazed form a dense body.

nature

Due to the high temperatures during firing, the components of the raw material are firmly welded together, and what is known as sintering forms an almost glass-like base mass. As a result, the broken glass becomes very dense and impermeable to water, according to Otto Lueger's lexicon of technology and its auxiliary sciences from 1910, it sucks up to a maximum of 5% water.

groups

The most important main groups of clay tools are:

  • Stoneware is colored light to brown depending on the clay used, but not translucent like porcelain. A distinction is made between common stoneware , which is processed without slurry throughout, and fine stoneware whose mass is slurried.
  • Porcelain (white clay) is made from white kaolin , quartz and feldspar . A distinction is made between soft and hard porcelain.

See also

  • Ceramic (orientational classification of ceramic materials)

Individual evidence

  1. ^ Pottery , on zeno.org
  2. ^ Bertram Philipp, Peter Stevens: Grundzüge der Industrielle Chemie , VCH Verlagsgesellschaft mbH, 1987, p. 262, ISBN 3-527-25991-0 .
  3. ^ Bertram Philipp, Peter Stevens: Grundzüge der Industrielle Chemie , VCH Verlagsgesellschaft mbH, 1987, p. 263, ISBN 3-527-25991-0 .