Chris Campbell on sun 18 oct 09
I am 100% on board with the wonders
of slow cooling ...
but could you expand a bit more on
the fast firing to Cone 10?
Why and How Fast?
How does it apply to electric?
Chris Campbell - in North Carolina
Chris Campbell Pottery LLC
Designs in Colored Porcelain
9417 Koupela Drive
Raleigh NC 27615-2233
William & Susan Schran User on sun 18 oct 09
On 10/18/09 1:06 PM, "Chris Campbell" wrote:
> I am 100% on board with the wonders
> of slow cooling ...
> but could you expand a bit more on
> the fast firing to Cone 10?
> Why and How Fast?
> How does it apply to electric?
Much depends on your circumstances and how your equipment can perform.
I used to fire my ^6 crystalline glazes to top temperature in 4 hours.
A 4 cu ft manual electric, stated firing with all switches on high.
Thinnish porcelain forms could withstand the rapid heat rise very well.
My ^6 crystal firings are now 5/6 hours as a slow down near the end for
additional heat work, but I still have 4-5 hours of holding in the 1875 -
Our ^10 reduction firings at school took 8 hours, then 2 days to cool.
We now fire to ^6 reduction, 6 hours, still 2 days to cool.
Great copper reds, temmokus, celadons.
William "Bill" Schran