Celadon Glaze
A green or blue-green reduction high or medium temperature glaze that has been stained using iron oxide. Celadons were developed by the ancient Chinese and there are many books on the subject. Typically celadon glazes are employed on porcelain but can also be used effectively on stonewares. Often celadons possess their high gloss because of high amounts of sodium and potassium, these oxides also cause the characteristic crazing often seen. However this problem can be solved by substituting some of the Na2O with MgO and increasing the SiO2 (using ceramic chemistry calculations of course). Out Bound Links
In Bound Links
- (Recipes)
77E06B - Plainsman Celadon Cone 10R
Standard celadon used at Plainsman Clays for many years
2008-07-22 - Just adjust the amount of iron to get the shade of...
Pictures
Celadon cone 10R glaze (about 3.5% iron oxide) with G1947U transparent liner glaze
Crazing in cone 10 reduction celadon glazes is common because they are high in K2O/Na2O
This one inch tall mug fired at cone 5 with Alberta Slip+20% frit 3134 is similar to a cone 10 reduction celadon glaze.
Close-up of bubbles (upper half) that become evident in a double thickness of a cone 10 celadon glaze that is lacking in flux
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