Alisa Clausen on mon 10 jan 05
6 firings?
Dear Clayart,
Recently it dawned on me that maybe I am waiting for a meltdown, or =
maybe not.
I use an unglazed pot to fire small unfired pieces in, that I use later =
on other work.
The sagger pot has been fired at least 10 times, up to cone 6 or 7.=20
I am wondering if clay has a firing life? Can it be unlimitedly fired =
to maturing temperature without
it eventually deteriorating? This may be a question for Tom B. or =
Ivor. Do clay molecules
remain stable firing after firing or does there occur a sort of =
breakdown including loss of mass?
(which I imagine opening my kiln one day and finding my sagger pot =
bloated or sagging or worse).
regards from Alisa in Denmark
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