A dunting crack

Saturday 22nd March 2014

Example of a insight-live.com/trouble/9">dunting crack in a flat deep cone 6 porcelain bowl. The bowl has a wide bottom that heat-sinks to the shelf, so during firing there is a temperature gradient between the walls and the base. That difference in temperature translates to stress because it means that different parts of the piece are experiencing different thermal contractions as it cools in the kiln.

Pages that reference this post in the Digitalfire Reference Library:

Co-efficient of Thermal Expansion, Thermal shock, Dunting

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