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 in ceramic.

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. They may be vertical horizontal or spiral. At these inversion points the structure of the silica molecules. The first occurs as you cool through the first silica inversion at 1063 degrees f.

There are 3 main reasons why cooling dunts occur. 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. 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. If the ware is glazed the glaze edges are sharp. The reasons for that cracking can be many. Dunting is a special type of crack which occurs from stresses caused during firing and cooling.

Heating dunts can be recognised by rounded. Dunting is a fault that can occur during the firing of ceramic articles. Dunting is a fault that can occur during the firing of ceramic articles. According to wikipedia dunting is a fault that occurs during the firing of ceramic articles.

Most dunting however is caused in cooling. Heating dunts can be recognised by rounded.