Alisa Clausen on wed 2 may 07
Glaze test for 1204, Purple/Blue, Cone 6, Redux.
Source: Ceramic Arts Buyers Guide, 2007
Credited to: Patrick Horsley
Fired on mid fire white stoneware
Firing ramp with an electric controller is:
100c p/h to 600c (212f - 1112f)
150c p/h to 1140c (302f - 2084f)
80c p/h to 1220c (176f - 2228f)
15 min. soak
cool down max. to 900c (1652f)
Hold 30 minutes
Shut off kiln
Colorants or additives to a 100 gram batch are measured in percent to the
100 gram batch.
Substitutions in this test: Frit 3134 subbed with local Boron Frit,
Feldspar used is Forshammer, Boron Frit is subbed for Gerstley Borate. All
substitutions are done not by Mol. Wts., but gram for gram.
Ingredient
50 Barium Carbonate
10 Zinc Oxide
20 Nepheline Syenite
15 Ball Clay--C & C
5 Kaolin--EPK
100 Total
Additives
2.5 Copper Carbonate
Unity Oxide
.076 Na2O
.025 K2O
.003 MgO
.007 CaO
.598 BaO
.291 ZnO
1.000 Total
.243 Al2O3
.003 Fe2O3
.922 SiO2
.008 TiO2
0 P2O5
3.8 Ratio
10 Exp
Results:
Dry to underfired, aqua and green glaze.
Donna Kat on thu 3 may 07
Want to look at your recipe and comments again? What frit/gerst....
On Wed, 2 May 2007 22:13:07 +0200, Alisa Clausen
wrote:
>Glaze test for 1204, Purple/Blue, Cone 6, Redux.
>
>Source: Ceramic Arts Buyers Guide, 2007
>
>Credited to: Patrick Horsley
>
>Fired on mid fire white stoneware
>
>Firing ramp with an electric controller is:
>100c p/h to 600c (212f - 1112f)
>150c p/h to 1140c (302f - 2084f)
>80c p/h to 1220c (176f - 2228f)
>15 min. soak
>cool down max. to 900c (1652f)
>Hold 30 minutes
>
>Shut off kiln
>
>Colorants or additives to a 100 gram batch are measured in percent to the
>100 gram batch.
>
>Substitutions in this test: Frit 3134 subbed with local Boron Frit,
>Feldspar used is Forshammer, Boron Frit is subbed for Gerstley Borate. All
>substitutions are done not by Mol. Wts., but gram for gram.
>Ingredient
>50 Barium Carbonate
>10 Zinc Oxide
>20 Nepheline Syenite
>15 Ball Clay--C & C
>5 Kaolin--EPK
>
>100 Total
>
> Additives
>2.5 Copper Carbonate
>
>Unity Oxide
>.076 Na2O
>.025 K2O
>.003 MgO
>.007 CaO
>.598 BaO
>.291 ZnO
>1.000 Total
>
>.243 Al2O3
>.003 Fe2O3
>
>.922 SiO2
>.008 TiO2
>0 P2O5
>
>3.8 Ratio
>10 Exp
> Results:
>Dry to underfired, aqua and green glaze.
>
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Alisa Clausen on thu 3 may 07
On Thu, 3 May 2007 11:09:14 -0500, Donna Kat wrote:
>Want to look at your recipe and comments again? What frit/gerst....
>
Donna
With all the data input necessary to make these reports available on
Clayart, part of my text is standard auto text. In this case, it did not
apply.
To help better understanding in the future, I could change the auto text to
Substitutions for any given recipe are:
Frit 3124 Subbede with local Boron Frit
Gerstley Borate with Boron Frit
Feldspars with Feldspat spar
Those are my standard subs.
that should sort it all out.
Best regards from Alisa in Denmark
>
>On Wed, 2 May 2007 22:13:07 +0200, Alisa Clausen
>wrote:
>
>>Glaze test for 1204, Purple/Blue, Cone 6, Redux.
>>
>>Source: Ceramic Arts Buyers Guide, 2007
>>
>>Credited to: Patrick Horsley
>>
>>Fired on mid fire white stoneware
>>
>>Firing ramp with an electric controller is:
>>100c p/h to 600c (212f - 1112f)
>>150c p/h to 1140c (302f - 2084f)
>>80c p/h to 1220c (176f - 2228f)
>>15 min. soak
>>cool down max. to 900c (1652f)
>>Hold 30 minutes
>>
>>Shut off kiln
>>
>>Colorants or additives to a 100 gram batch are measured in percent to the
>>100 gram batch.
>>
>>Substitutions in this test: Frit 3134 subbed with local Boron Frit,
>>Feldspar used is Forshammer, Boron Frit is subbed for Gerstley Borate.
All substitutions are done not by Mol. Wts., but gram for gram.
>>Ingredient
>>50 Barium Carbonate
>>10 Zinc Oxide
>>20 Nepheline Syenite
>>15 Ball Clay--C & C
>>5 Kaolin--EPK
>>
>>100 Total
>>
>> Additives
>>2.5 Copper Carbonate
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