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crystalline glazes, alumina plus speedfiring

updated fri 30 jul 04

 

Avril Farley on thu 29 jul 04


Bill Schran Said......."Want to
get there at 350/500 =B0F per hour (I fire from start to cone 6 in 3-4 =
hours).
Then crash cool to about 200=B0F below top temp (could be more or less
depending on glaze) and hold at that temp for desired length of time."

This is incredibly fast firing - does your clay mature properly at these
temperatures without bloating?, and what size is the kiln, and how does =
this
speed affect the elements? I rarely fire at more than 130 per hour to =
950
in my 4.5 cu ft Olympic toploader, and then as fast as possible =
thereafter
to top temp before doing the cooling bit I have no trouble achieving
crystals of any size at this rate, and my last set of elements did =
60+
firings.
Avril in the Forest of Dean UK

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