Bret Hinsch on wed 7 mar 01
>>Hi Rob,
>>
>>Glad you're interested in teadust. I love the stuff. I've gotten good
>>results putting this glaze over a pure white cone 9 oxidation body -
>>almost porcelain. But I've seen photos of test pieces on a darker body,
>>and the teadust does okay as well. The colors on these glazes tend to be
>>pretty intense, so some teadusts might be able to come through on a darker
>>body, although the color will probably be more green than yellow.
>>
>>While you're experimenting, you might just try adding 2% nickel to your
>>favorite temmoku. There's a good chance it will turn to teadust.
>>
>>The original Tang dynasty teadusts were just underfired temmokus. The
>>nickel mimicks the effects of underfiring. If you want to work at lower
>>temperatures, you can try firing a high temperature temmoku at a lower
>>temperature. You might end up with teadust.
>>
>>Oh - and be careful in your initial experiments. Some of these glazes
>>tend to run. If this bothers you, you can try differnet forumlations
>>until you find something more stable. In my experience, the glossier the
>>teadust, the runnier it is. Matte teadusts seem to be more stable than
>>gloss teadusts.
>>
>>Good luck. And let me know if I can be of any other help.
>>
>>Bret in Taipei
>>
>>>From:
>>>To:
>>>Subject: teadust recipes
>>>Date: Mon, 5 Mar 2001 20:36:40 -0500
>>>
>>>Hi Bret:
>>>
>>>I read your posting on the Clayart list serve. Sounds like you waded
>>>through a lot of material. One thing you did not mention, were the
>>>experiments carried out on porcelain or a stoneware body. If stoneware,
>>>and since this is oxidation would it matter if it were a dark or light
>>>colored body?
>>>
>>>Thanks,
>>>
>>>Rob Hackert-ndiaman@hotmail.com, here in New Jersey where the winter is
>>>long in going.
>>>
>>>
>>
>
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James Bowen on mon 12 mar 01
Brett said " so some teadusts might be able to
come through on a darker
body, although the color will probably be more
green than yellow."
This may be the answer to a question I have
about "teadust" on the pots I glazed with Temoku
over Ohata Kaki. In the first ^10R firing we had
the pots had orange crystals and in the second
the crystals were grass green. One difference
was the clay body. The first was a white
stoneware (Dover with sand) and the second was a
light buff body and a darker buff body.
I have always assumed the difference was caused
by a slightly different firing regimen resulting
in a different atmosphere at critical times in
the firing.
Any other ideas?
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