Dunting In Ceramic

Dunting is cracking associated with too rapid a cool down of the kiln. Heating dunts can be recognised by rounded. 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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The first occurs as you cool through the first silica inversion at 1063 degrees f.

Dunting in ceramic.

According to wikipedia dunting is a fault that occurs during the firing of ceramic articles. It is the cracking that occurs in fired ceramic bodies as a result of a thermally induced stress and it is caused when a ceramic ware cools too quickly after it has been fired. Dunting is a fault that can occur during the firing of ceramic articles. Dunting often exhibits itself as simple hairline cracks but ware can fracture into pieces.

Dunting generally refers to cracking that occurs in ceramic ware as it is cooled in the kiln. There are 3 main reasons why cooling dunts occur. Most dunting however is caused in cooling. 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.

Dunting is a fault that can occur during the firing of ceramic articles. 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. At these inversion points the structure of the silica molecules. Dunting is cracking associated with a very fast cool down of the kiln.

These cracks appear as long clean body cracks with sharp edges. Dunting is a special type of crack which occurs from stresses caused during firing and cooling. They may be vertical horizontal or spiral. Heating dunts can be recognised by rounded.

The reasons for that cracking can be many. If the ware is glazed the glaze edges are sharp.

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