CRYSTALLINE GLAZED CERAMICS
How its done
Also cunning and luck
HOW ITS DONE
Pots are thrown with a commercial stoneware clay body, or a porcelain body, or I use the stoneware body with a thin coating of porcelain. These 3 different clay bodies give different results from each glaze.
I trim the base of each pot to sit on a pre made base and glaze catcher.
Each pot is bisque fired.
Using my previous researches as a start point, I mix up and test my own glazes. Each base glaze will respond differently to the colouring oxides and varying amounts of zinc and to the clay body.
I use some clay in some of my glazes, so they don't run quite as much as most crystalline glazes. I aim to be able to lift each piece out of the kiln without it needing to be ground off its catcher. In both these areas I don’t follow the usual path for a crystalline ceramicist.
In the top photo, I have painted the glaze on to the bisque fired pot. These are all on risers and catch saucers.
The firing schedule reaches cone 9 to melt the glaze, then settles back for an extended soak at the lower temperature which the crystals like to grow at.
The bottom pictures show the moment I open the glaze firing and get my first view of how successful its been.
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