WAMSTER@delphi.com on sun 21 apr 96
On Sat, 20 Apr 1996 08:19:48 EDT, Vince Pitelka wrote:
>
> If you are concerned about the glaze "healing," that is, if
> during glaze reduction you tend to get considerable volatization
> and resulting bubbling in the glaze, then a short oxidation soak
> will allow the glaze to reach equilibrium, and the bubbles/craters
> to heal.
>
Hello Vince and others:
I would like to thank Vince for the wealth of information he has
shared with Clayart, including two lucid posts yesterday on firing
updraft kilns and oxy cleanup.
I have a question about this bubbling thing.... I have seen how
some glazes tend to bubble in a reduction atmosphere, especially
on the inside surface of vessels, especially if there is an overlapping
of more than one glaze. Can anyone explain where these bubbles are
coming from and why the process is more pronounced in reduction?
TIA
- Bill Amsterlaw
Plattsburgh, NY
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