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minor cleanup
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fixer1234
fixer1234
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it isIt is the glaze andand the lacklack of annealing thethe piece. In lampworking glass, glass needs to be annealed to decrease any stress in the glass so it will not crack ceramics which is. Ceramics that are glazed isare glass covingcovering the ceramics so, so it also needs to bebe annealed, with a slow cooling ofof the piece when fired fired. It

It would also helphelp if you findfind out the COE ofof the glaze too if you can toso you can hold the temperature of the kilnkiln at the bestbest temperature to reduceto reduce the stress of the glazeglaze. 

I personallypersonally do not know whatknow what that would be. possibly just Possibly, just slowing down the kilnfiring process; reducing the temperature veryvery slowly to say twice what it did before you did before.

it is the glaze and the lack of annealing the piece. In lampworking glass needs to be annealed to decrease any stress in the glass so it will not crack ceramics which is glazed is glass coving the ceramics so it also needs to be annealed a slow cooling of the piece when fired . It would also help if you find out the COE of the glaze too if you can to hold the temperature of the kiln at the best temperature to reduce the stress of the glaze. I personally do not know what that would be. possibly just slowing down the kiln reducing the temperature very slowly to say twice what it did before.

It is the glaze and the lack of annealing the piece. In lampworking, glass needs to be annealed to decrease any stress in the glass so it will not crack. Ceramics that are glazed are glass covering the ceramics, so it also needs to be annealed, with a slow cooling of the piece when fired.

It would also help if you find out the COE of the glaze if you can so you can hold the temperature of the kiln at the best temperature to reduce the stress of the glaze. 

I personally do not know what that would be. Possibly, just slowing down the firing process; reducing the temperature very slowly to say twice what you did before.

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beadforever
beadforever
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it is the glaze and the lack of annealing the piece. In lampworking glass needs to be annealed to decrease any stress in the glass so it will not crack ceramics which is glazed is glass coving the ceramics so it also needs to be annealed a slow cooling of the piece when fired . It would also help if you find out the COE of the glaze too if you can to hold the temperature of the kiln at the best temperature to reduce the stress of the glaze. I personally do not know what that would be. possibly just slowing down the kiln reducing the temperature very slowly to say twice what it did before.