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blue celadon recipe

updated mon 21 sep 09

 

Sherron & Jim Bowen on fri 18 sep 09


A very nice one in fact.
JB

----- Original Message -----
From: "Des & Jan Howard"
To:
Sent: Friday, September 18, 2009 5:29 PM
Subject: Blue celadon recipe


> Debby
> Craig Martell blue celadon
> Cone 10 reduction
> potash feldspar 49.6
> silica 36.14
> limestone 9.16
> kaolin 1.14
> barium carbonate 3.95
> + red iron oxide 1.11
> Soft blue celadon, nice one.
> Des
>
> Gower wrote:
>> Hmmm better go and make the plate first
>> Has anyone got a really lovely blue tinged
>> celadon recipe they can recommend
>
> --
> Des & Jan Howard
> Lue Pottery
> Lue NSW
> Australia
> 2850
>
> 02 6373 6419
> www.luepottery.hwy.com.au
> -32.656072 149.840624
>

Lee Love on sat 19 sep 09


On Sat, Sep 19, 2009 at 5:42 PM, Des & Jan Howard wro=
te:

> I'll have to ask.
> Why don't you buy barium?

I don't need to. With these traditional high fire glazes, I
stick with feldspars, whiting, clay and ash. I don't see any reason
to use metals, except for coloring. For color, I primarily use iron
and a little copper. Rarely, I use gosu. If it was good enough for
the Sung and Chosen potters, it is good enough for me.

With lowfire, I have been using frits instead of lead.
And also forgoing glaze all together, using terra sig instead. In
high fire, I have been doing soda firing.

My least favorite aspect of making pots is hiding the clay
body with glaze. That is why most of my work in Japan was unglazed.
With the terra sig, every mark you leave on the clay while it is soft
is evident in the final product. It is less forgiving.

--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Craig Martell on sat 19 sep 09


Lee asked:
> >> Can Strontium sub for the barium?

Yes but it moves the color toward green. Still a nice celadon but not
quite sky blue. You can just leave out the Barium and the glaze will still
be blue. But not as blue as with Barium.

regards, Craig Martell

Lee Love on sat 19 sep 09


Thanks Craig,


This is my Chun blue. I call it Paul's Chun because Paul Morse from
the UofMN gave it to me:

Custer 80
Whiting 7
FLint 7
WoodAsh 4
boneAsh 2
Y. Ocher 1
Bentonite 1

For purple splash: 3% copper slip on raw body. Sky blue on
porcelain or white stoneware. The color of the above Nezumi Shino on
iron bearing Stoneware. I plan on experimenting without ocher and on
different slips and clay bodies.


--
--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Lee Love on sat 19 sep 09


On Fri, Sep 18, 2009 at 7:14 PM, Sherron & Jim Bowen
wrote:
> A very nice one in fact.
> JB
>
> ----- Original Message -----
> From: "Des & Jan Howard"
> To:
> Sent: Friday, September 18, 2009 5:29 PM
> Subject: Blue celadon recipe
>
>
>> Debby
>> Craig Martell blue celadon
>> Cone 10 reduction
>> potash feldspar =3DA0 =3DA0 49.6
>> silica =3DA0 =3DA0 =3DA036.14
>> limestone =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 9.16
>> kaolin =3DA0 =3DA0 =3DA0 =3DA01.14
>> barium carbonate =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA03.95
>> + red iron oxide =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA0 =3DA01.11
>> Soft blue celadon, nice one.
>> Des
>>

Can Strontium sub for the barium?
--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Randall Moody on sat 19 sep 09


On Sat, Sep 19, 2009 at 9:51 AM, Lee Love wrote:

> On Fri, Sep 18, 2009 at 7:14 PM, Sherron & Jim Bowen
> wrote:
> > A very nice one in fact.
> > JB
> >
> > ----- Original Message -----
> > From: "Des & Jan Howard"
> > To:
> > Sent: Friday, September 18, 2009 5:29 PM
> > Subject: Blue celadon recipe
> >
> >
> >> Debby
> >> Craig Martell blue celadon
> >> Cone 10 reduction
> >> potash feldspar 49.6
> >> silica 36.14
> >> limestone 9.16
> >> kaolin 1.14
> >> barium carbonate 3.95
> >> + red iron oxide 1.11
> >> Soft blue celadon, nice one.
> >> Des
> >>
>
> Can Strontium sub for the barium?
> --
> Lee Love, Minneapolis
>

At that small of a percentage it probably can but at that small of a
percentage it probably doesn't need to.

--
Randall in Atlanta

Lee Love on sat 19 sep 09


On Sat, Sep 19, 2009 at 4:39 PM, Randall Moody wr=
ote:
>
>>
>> Can Strontium sub for the barium?
>> --
>> Lee Love, Minneapolis
>
> At that small of a percentage it probably can but at that small of a
> percentage it probably doesn't need to.

Unless you don't buy barium.
--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Randall Moody on sat 19 sep 09


On Sat, Sep 19, 2009 at 5:46 PM, Lee Love wrote:

> On Sat, Sep 19, 2009 at 4:39 PM, Randall Moody
> wrote:
> >
> >>
> >> Can Strontium sub for the barium?
> >> --
> >> Lee Love, Minneapolis
> >
> > At that small of a percentage it probably can but at that small of a
> > percentage it probably doesn't need to.
>
> Unless you don't buy barium.
> --
>
Good point. I would think that the blue may be affected by the lack of
barium though.

--
Randall in Atlanta

Lee Love on sat 19 sep 09


On Sat, Sep 19, 2009 at 4:26 PM, Des & Jan Howard wro=
te:
> Lee
> Why would you want to do that?

I buy strontium. I get better results with it.

--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Des & Jan Howard on sat 19 sep 09


Debby
Craig Martell blue celadon
Cone 10 reduction
potash feldspar 49.6
silica 36.14
limestone 9.16
kaolin 1.14
barium carbonate 3.95
+ red iron oxide 1.11
Soft blue celadon, nice one.
Des

Gower wrote:
> Hmmm better go and make the plate first
> Has anyone got a really lovely blue tinged
> celadon recipe they can recommend

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624

Des & Jan Howard on sun 20 sep 09


Lee
Not if you want the beautiful soft blue of the
Craig Martell Blue Celadon :)
Des

Lee Love wrote:
> I buy strontium.
> I get better results with it.

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624

Des & Jan Howard on sun 20 sep 09


Lee
So, what do you do with the strontium?
Des

Lee Love wrote:
> On Sat, Sep 19, 2009 at 5:42 PM, Des & Jan Howard w=
rote:
>> I'll have to ask.
>> Why don't you buy barium?
>
> I don't need to. With these traditional high fire glazes, I
> stick with feldspars, whiting, clay and ash. I don't see any reason
> to use metals, except for coloring. For color, I primarily use iron
> and a little copper. Rarely, I use gosu. If it was good enough for
> the Sung and Chosen potters, it is good enough for me.

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624

Des & Jan Howard on sun 20 sep 09


Lee
Why would you want to do that?
Des

Lee Love wrote:
> Can Strontium sub for the barium?

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624

Lee Love on sun 20 sep 09


On Sun, Sep 20, 2009 at 3:21 AM, Des & Jan Howard wro=
te:
> Lee
> So, what do you do with the strontium?

It goes in my blue/green/red trailing decoration glaze.
Because Mashiko's glazes are fired in oxidation, their green turns a
yucky red in reduction. Their noborigama have low arches, conducive
to oxidation. But the strontium green stays green stays green more
regularly in reduciton.. Lately, I have be using V.C. Blue/Green
instead. If I don't need non-coloring metals in my glaze, I try to
avoid them. We have so many choices you need to make artificial
limits for focus.

I plan on trying Mashiko glazes in electric, but I don't think
they'll be exactly right because electric doesn't get the temporary
reduction the old noborigama kilns did. I have an idea on how to
change that. Mashiko glazes don't work at all in the soda firing I
have been doing.

--
Lee Love, Minneapolis
"The tea ceremony bowl is the ceramic equivalent of a sonnet: a
small-scale, seemingly constricted form that challenges the artist to
go beyond mere technical virtuosity and find an approach that both
satisfies and transcends the conventions." -- Rob Sliberman
full essay: http://togeika.multiply.com/journal/item/273/

Des & Jan Howard on sun 20 sep 09


Lee
I'll have to ask.
Why don't you buy barium?
Des

Lee Love wrote:
> Unless you don't buy barium.

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624