William Lucius on wed 28 may 03
Good question. From some years of experience in gathering and testing
native clays in the Four Corners area, I can say that I have never found a
source that is stable above cone 5. Perhaps some gain in temperature of
maturation could be achieved by mixing clays, although my limited experience
with mixed clays is that the negative aspects of both clays are emphasized
when mixed. At cone 5 reduction most of the volcanic ash-derived clays are
very stony, so why not reduce the target temperature (saves fuel and results
in new glaze formulations).
William A. Lucius, Board President
Institute for Archaeological Ceramic Research
845 Hartford Drive
Boulder, CO 80305
iacr@msn.com
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Joe Coniglio on wed 28 may 03
Working with the materials and resources at hand is a very logical idea since
I understand the 4C area abounds in lower temperature clays.
Am I missing something here? Can I fire american style shino glazes and ash
based glazes (not amagama fly ash--instead, exotic concoctions of ash mixed
into glazing media) at cones 4-5 or 6 and get the results (the look) of cone
10 or 11?? That would be neat. ie working with what you've got, not what
you don't have.
---
The lower temperature glazes seem so commercial looking, and predictable with
little surprise and mystery especially in an electric kiln.
Russel Fouts on thu 29 may 03
Joe,
>> Working with the materials and resources at hand is a very logical idea since I understand the 4C area abounds in lower temperature clays.
Am I missing something here? Can I fire american style shino glazes and
ash based glazes (not amagama fly ash--instead, exotic concoctions of
ash mixed into glazing media) at cones 4-5 or 6 and get the results (the
look) of cone 10 or 11?? That would be neat. ie working with what
you've got, not what you don't have. --- The lower temperature glazes
seem so commercial looking, and predictable with little surprise and
mystery especially in an electric kiln. <<
That is the challenge of working with what you have at hand. Just
because others haven't done "interesting work" (not true by the way) at
low temps in electric kilns doesn't mean that you won't.
Push it, try things, experiment, have a look at Zakin's "Electric Kiln
Ceramics" or the new publication from Acers "Electric Kiln Techniques"
(or something like that)
All my work (which I know you like) is fired in an electric kiln.
Russel
--
Russel Fouts
Mes Potes & Mes Pots
Brussels, Belgium
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