David & Diane Chen on sat 10 apr 99
I have searched in vain for this information for the past day and a half. I
thought I recalled if iron oxide was used in a glaze that the cooling =
process
should be slowed down by some factor so that the colors had a chance to =
mature.
I have looked everythwere and although I can find references to here's an
example of slowing down the cooling process (skutt manual), and some general
references to =22slow cooling=22 in the archives, I feel like I still need =
more
information. How slow should some of these Cone 6 temmoku glazes be cooled =
for
example. And does this apply to anything with iron in it,or is there some =
other
reason?
Thanks in advance.
Diane
Chris Schafale on sun 11 apr 99
Diane,
What you might be remembering is the discussion of iron red glazes --
in this case the red color develops from the formation of iron
crystals, which is facilitated by spending a longer period of time in
the 700-900 C range, so you slow cool to allow this to happen. I
don't think that slow cooling is necessarily critical for other iron
glazes, don't know for sure about temmoku-like glazes.
Chris
> ----------------------------Original message----------------------------
> I have searched in vain for this information for the past day and a half. I
> thought I recalled if iron oxide was used in a glaze that the cooling process
> should be slowed down by some factor so that the colors had a chance to mature
> I have looked everythwere and although I can find references to here's an
> example of slowing down the cooling process (skutt manual), and some general
> references to "slow cooling" in the archives, I feel like I still need more
> information. How slow should some of these Cone 6 temmoku glazes be cooled fo
> example. And does this apply to anything with iron in it,or is there some oth
> reason?
>
> Thanks in advance.
> Diane
>
>
Light One Candle Pottery
Fuquay-Varina, NC
candle@intrex.net
Karin Hurt THAT IS MY REAL NAME my e-mail is: on sun 11 apr 99
Are you using oxidation? My skutt is computerized and my manual says not to
open then kiln until the temp. is 172. I find that even if it says that it's
still too hot inside so I cool it more. Mine takes a day (at least) to cool.
Karin
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