Rod & Erin on thu 1 nov 01
Actually Vince I often use shells in reduction firings on glazes that run on
purpose ;)
Rod
Vancouver, BC, Canada
----- Original Message -----
From: "vince pitelka"
To:
Sent: Thursday, November 01, 2001 5:56 PM
Subject: Re: [shells in the kiln
> Debi Rudman wrote:
> "So, would shells imbedded into a low-fire clay and fired at Cone 06 be a
> safe thing to do in an electric kiln...or would there be minor
> explosions/popping? "
>
> The expansion of the shells does not happen until they reabsorb water from
> the atmosphere after the firing. But of course you could not embed shells
> in your clay because the clay would crack as it shrinks around the shells
> during drying.
>
> The previous post referred to using shells filled with wadding to support
> pots in salt or wood firings. If the glaze runs down to the foot of the
pot
> and gets on the shells, the shell still comes off easily, leaving a nice
> shell impression in the glaze run on the foot. This would not be an
> appropriate thing to do in reduction firing, where the glazes should not
> run, but in salt and wood it works great.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> Home - vpitelka@dtccom.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> http://www.craftcenter.tntech.edu/
>
>
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vince pitelka on thu 1 nov 01
Debi Rudman wrote:
"So, would shells imbedded into a low-fire clay and fired at Cone 06 be a
safe thing to do in an electric kiln...or would there be minor
explosions/popping? "
The expansion of the shells does not happen until they reabsorb water from
the atmosphere after the firing. But of course you could not embed shells
in your clay because the clay would crack as it shrinks around the shells
during drying.
The previous post referred to using shells filled with wadding to support
pots in salt or wood firings. If the glaze runs down to the foot of the pot
and gets on the shells, the shell still comes off easily, leaving a nice
shell impression in the glaze run on the foot. This would not be an
appropriate thing to do in reduction firing, where the glazes should not
run, but in salt and wood it works great.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://www.craftcenter.tntech.edu/
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