Dunting In Ceramic

According to wikipedia dunting is a fault that occurs during the firing of ceramic articles.

Dunting in ceramic.

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. 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. At these inversion points the structure of the silica molecules.

Dunting is cracking associated with a very fast cool down of the kiln. 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. They may be vertical horizontal or spiral.

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. 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. Dunting often exhibits itself as simple hairline cracks but ware can fracture into pieces.

Heating dunts can be recognised by rounded. Dunting is a fault that can occur during the firing of ceramic articles. The reasons for that cracking can be many. Heating dunts can be recognised by rounded.

Dunting generally refers to cracking that occurs in ceramic ware as it is cooled in the kiln. Dunting is cracking associated with too rapid a cool down of the kiln.