Most dunting however is caused in cooling.
What is dunting in ceramics.
The reasons for that cracking can be many.
If the ware is glazed the glaze edges are sharp.
Dunting often exhibits itself as simple hairline cracks but ware can fracture into pieces.
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Dunting generally refers to cracking that occurs in ceramic ware as it is cooled in the kiln.
Latent and dormant cracks may even appear on the dunted piece.
At this point in the firing the strength to keep the ceramic shape is supplied by the clay quartz and other more refractory materials in the body.
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Pottery specialists proved that dunting happens during the cooling process of a ceramic piece.
The gas bubbles naturally exert force to expand because the temperature everywhere in the kiln and ware is rising.
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There are 3 main reasons why cooling dunts occur.
Dunting is a fault that can occur during the firing of ceramic articles.
The first occurs as you cool through the first silica inversion at 1063 degrees f.
Heating dunts can be recognised by rounded.
If there is any crack that appears on the pottery it will get worse if you fire it multiple times and it can also happen due to thermal expansion.
Dunting is a fault that can occur during the firing of ceramic articles.
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These cracks appear as long clean body cracks with sharp edges.
Heating dunts can be recognised by rounded.
Therefore dinnerware pottery should be uncrazed ware.
They may be vertical horizontal or spiral.
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These stresses primarily occur during two critical points of firing called silica inversions which occur at 1063 degrees f 573 degrees c and 439 degrees f 226 degrees c.
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It is the cracking that occurs in fired ceramic bodies as a result of a thermally induced stress and is caused by a ware cooled too quickly after it has been fired although usually occurring during cooling dunts can also be caused by excessively fast heating rates.
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Dunting is cracking associated with too rapid a cool down of the kiln.
It is the cracking that occurs in fired ceramic bodies as a result of a thermally induced stress and is caused by a ware cooled too quickly after it has been fired although usually occurring during cooling dunts can also be caused by excessively fast heating rates.
There are cases where crazing crackle effect is a desired effect like in the pictures on the left click to enlarge.
