Edward Cowell on mon 23 mar 98
>The Co-op, of which I am a member, had a problem with a cone 10 firing
in our
>newly refurbished gas kiln. People who have been using a heavily grogged
>red clay with Chez Red glaze on it experienced a dark charcoal gray inside
>when a piece was broken open. There was unusually heavy reduction. We
feel that this is carbon coring. How damaging is this to the function of
the pots in terms of usage in a microwave and oven?
>
>Laurie Cowell
>
>
Carole Fox on wed 3 may 00
Hello Clayart Friends,
First, a brief introduction: I have been working with clay for more than
ten years. In the past couple of years I made enough progress to enter a few
local shows (Delaware Art Museum was my first). I make thrown raku pieces
that usually have handformed additions. I want to someday have a reduction
kiln for a line of functional ware. I'm saving my pennies and I hope to be
able to afford one by the time I'm 45.
(I'm 42 now!) I have two sweet little daughters and my job as mom takes me
away from clay a lot. But I really get cranky if I don't have my hands in it
for a while.
I teach at two local art programs run by the Dept. of Parks and
Recreation. I've also enrolled myself in the advanced ceramics class at the
university. I feel like the learning is a little slow-going there for someone
who has their own studio. But I don't want to get too wordy.
I hope you can help me with this question. In my class at the university,
a recent cone 9 reduction firing (that I think was probably closer to cone
11) left the studio stoneware body a dark black on the inside. One professor
tells me yes, it's carbon coring. The other says no, it's only the color of
the reduced iron in the clay body. Is there a way for me to find out what
really happened in this situation?
Also, would you feel comfortable using or giving away a pot that has
carbon coring? I certainly wouldn't sell them.
Thanks for your time. After lurking for so long, it feels nice to finally
be among you.
Fondly, Carole Fox
- in Elkton, Maryland where the horses run through the fields of
buttercups and it finally feels like Spring!
| |
|
