Valerie Hawkins on wed 29 may 02
Does such a thing exist?
Valerie
Charlotte
Gillian Evison on wed 29 may 02
I would also be very interested in this. JILL
>From: Valerie Hawkins
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: cone 6 Ox oil spot?
>Date: Wed, 29 May 2002 07:36:43 -0400
>
>Does such a thing exist?
>
>Valerie
>Charlotte
>
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Ian Currie on thu 30 may 02
> Subject: cone 6 Ox oil spot?
>
> Does such a thing exist?
>
> Valerie
> Charlotte
Hi Valerie
Slightly naughty of me I realise, but without permission from Ron and John I
have been deconstructing (probably not the right work, but it sounds good)
some of their glazes. By this I mean I have taken several of their glazes
and produced the grid set that contains it. One that I tried was their
Licorice glaze. The grids were fired to cone 6 and 7 in an electric kiln
while on tour recently. There were lots of oilspot glazes in those with
more alumina than the licorice. The glazes are still black, and the spots
are a metallic black, but it is a mid-fire oilspot glaze, and I suspect
there are many other combinations that would do it.
In the grid I'm looking at, the best are glazes 1 and 2 on the grid, but
there are at least 10 across the top of the grid.
No.1 is:
27.6 Ferro Frit 3134
23.4 Custer Feldspar
5.4 Talc
4.2 Whiting
40.0 EPK
+9% Red Iron Oxide
+2% Cobalt Carbonate
This glaze takes the original flux set and colouring oxide combination
published as Licorice glaze in their book "Mastering Cone 6 Glazes", Pages
96,97... and changes the alumina and silica balance. So it belongs in the
"Licorice Family" but is quite a different glaze. I can't vouch for its
degree of stability... it is well away from the original tested stable glaze
that Ron and John published. It seems to be uncrazed. There are oilspots
on glazes right next to the Licorice on the grid, but not so nice.
This oilspot is not the most exciting glaze I have seen, though 30 years ago
I would have been quite pleased with it. It needs more work to make it leap
to life. However I see it as a starting point. And if stability is an
issue for you, I am confident you would find stable oilspot glazes in this
grid.
If you need to understand more about my grid method it is outlined at my
website:
http://ian.currie.to/
It is also outlined in considerable detail in my new book "Revealing Glazes
- Using the Grid Method" which can be purchased by credit card at the same
website. I think you can obtain Ron and John's book at their website:
www.masteringglazes.com/
Regards
Ian
http://ian.currie.to/
Ababi on thu 30 may 02
Hello Ian
Can you explain me please what cause the oil spots?
Ababi Sharon
---------- Original Message ----------
>> Subject: cone 6 Ox oil spot?
>>
>> Does such a thing exist?
>>
>> Valerie
>> Charlotte
>Hi Valerie
>Slightly naughty of me I realise, but without permission from Ron and
>John I
>have been deconstructing (probably not the right work, but it sounds
>good)
>some of their glazes. By this I mean I have taken several of their
>glazes
>and produced the grid set that contains it.
Dewitt on thu 30 may 02
At 13:41 5/30/02 +0200, you wrote:
>Hello Ian
>Can you explain me please what cause the oil spots?
>Ababi Sharon
>
>
John Britt explains all in the June/July/Aug Ceramics Monthly that just
came out. Based on his explanation of how the spots are created, it
doesn't seem possible to recreate the same effect at cone 10. He says it
is due to the thermal reduction of iron that occurs at approx. 2350 F and
the bubbles causes by the liberated oxygen.
deg
---------------------------
Dewitt Gimblet
dewitt@texas.net
Austin, TX
---------------------------
John Hesselberth on thu 30 may 02
on 5/29/02 9:19 PM, Ian Currie at fcurriap@FLEXI.NET.AU wrote:
> Slightly naughty of me I realise
Naughty? Come on Ian, you'll have to do better than that to get put in the
naughty category. You have done exactly what we hope people will do with
our glazes. We regard our glazes as useful starting points--beautiful and
durable, yes--but only scratching the surface of what can be done at cone 6
in an electric kiln. We hope people will work with them and carry their
development forward. Whether or not your oil spot versions are stable--well
that is easy enough to determine.
Regards,
John
web sites: http://www.masteringglazes.com and http://www.frogpondpottery.com
EMail: john@frogpondpottery.com
"Pots, like other forms of art, are human expressions: pleasure, pain or
indifference before them depends upon their natures, and their natures are
inevitably projections of the minds of their creators." Bernard Leach, A
Potter's Book.
Ian Currie on fri 31 may 02
Hi John
> Naughty? Come on Ian, you'll have to do better than that to get put in
the
> naughty category.
Dang! Posturing pusillanimous potter revealed!!
> You have done exactly what we hope people will do with our glazes.
Music to my ears John. Warmest regards....
Ian
http://ian.currie.to/
Ababi on tue 4 jun 02
Thank you Deg
The picture in the CM convinced me it is about time to re subscript
Ababi
---------- Original Message ----------
>At 13:41 5/30/02 +0200, you wrote:
>>Hello Ian
>>Can you explain me please what cause the oil spots?
>>Ababi Sharon
>>
>>
>John Britt explains all in the June/July/Aug Ceramics Monthly that just
>came out. Based on his explanation of how the spots are created, it
>doesn't seem possible to recreate the same effect at cone 10. He says
>it
>is due to the thermal reduction of iron that occurs at approx. 2350 F
>and
>the bubbles causes by the liberated oxygen.
>deg
>---------------------------
>Dewitt Gimblet
>dewitt@texas.net
>Austin, TX
>---------------------------
>_______________________________________________________________________
_
>______
>Send postings to clayart@lsv.ceramics.org
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
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