Carolyn Nygren Curran on sat 14 oct 00
Back again after relative visiting in S. Cal, and I kept thinking texture
and color as we flew over Grand Canyon and other wonders. Every time the
view gets to me - manmade fields, irrigated areas juxtaposed with
mountains, cloud shadows and bare rock. Trees in some areas looked like
poppy seeds on top of a hard roll from 32, 000 ft.
But back to the temperatures inside and outside of a pot. I've not been
scientific, but I've often noted differences between same glaze applied to
interior and exterior of an almost closed form (particularly in a high fire
reduction kiln). If temp is no higher inside, it may be that cooling is
slower on the interior, and that affects the glaze. In fact, I keep
threatening to do some experiments with this with copper red test
tiles---to see if I obtain better reds if I put a test tile or small pot
underneath an inverted bowl and fire it inside that mini saggar.
And what about those who fire high fired glazed ware inside a saggar? It
would be interesting to hear your insights. Cheers from cnc where the
maple reds on the trees are outdoing the copper reds on the pots.
Snail Scott on sun 15 oct 00
At 05:18 PM 10/14/00 -0400, you wrote:
> ...But back to the temperatures inside and outside of a pot. I've not been
>scientific, but I've often noted differences between same glaze applied to
>interior and exterior of an almost closed form (particularly in a high
fire...
I've noticed that interiors of things are often slightly more
reduced than the outsides in an otherwise oxidizing firing.
I attribute this to the burnout of things what weren't quite
removed in the bisque firing. When I single-fire things, the
effect is even more pronounced.
-Snail
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