Joseph Herbert on sat 20 may 06
Dan Saultman wrote: Has anyone found a successful wire stilt that will work
with plates, etc?, at Cone 10 Redux temps.
Dan,
It is not the stilts so much as the ware. It is amazing that anything holds
its shape at cone 10 temperatures. Asking something to hold its shape at
that temperature while sitting on a pointy thing is perhaps asking too much.
Remember that vitrification means forming glass and glass is a liquid. At
low temperatures it flows very slowly but at 2300 degrees it moves more
easily.
When commercial porcelain is fired to its highest temperature, the ware may
be supported totally on a form prevent deformation while it is so soft.
Go with clean feet or wadding.
Joe
Linda Blossom on mon 22 may 06
Referring the to the post below:
I had been told, many years ago, that this was the
case with high fire. Then John Calver brought a
flat bottomed piece (a heavy piece) with feet that
he wanted to be glazed (and they were) and this
piece was fired to cone ten on pointy clay stilts
that he made. This was stoneware, not porcelain.
Anyway, another "belief" bit the dust.
Linda
Ithaca, NY
It is not the stilts so much as the ware. It is
amazing that anything holds
its shape at cone 10 temperatures. Asking something
to hold its shape at
that temperature while sitting on a pointy thing is
perhaps asking too much.
Remember that vitrification means forming glass and
glass is a liquid. At
low temperatures it flows very slowly but at 2300
degrees it moves more
easily.
When commercial porcelain is fired to its highest
temperature, the ware may
be supported totally on a form prevent deformation
while it is so soft.
Go with clean feet or wadding.
Joe
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