Ababi on sat 21 dec 02
The following recipe was the starting point:
How did I arrive to this blend
http://members4.clubphoto.com/ababi306910/981929/
ABABISCRAWL__#3
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Cone 6 1222 deg.C. -
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SPODUMENE 21.75
RED CLAY (GRT) 21.75
FRIT A 2120 p 30.25
Magnesium Carb Light 16.75
ULTROX 9.50
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Seger Weight%
KNO 0.333 10.84%
CaO 0.077 2.19%
MgO 0.462 9.40%
Li2O 0.127 1.92%
Al2O3 0.237 12.18%
SiO2 1.854 56.20%
ZrO2 0.117 7.28%
K2O 0.025 1.20%
Na2O 0.308 9.64%
Al:Si 7.82
Expan. 8.11
ST 365.40
The result gave a waxy glaze
The limitation is the high amount of MgO that limits the coloring possibilities.
I decided to try using the Surface tension of Matrix to create a glaze with a similar
appearance, got the glaze in the last slide in the right.
The analysis of the red clay I used is not sure so I re tested it:
ABABI'S WAXY 2
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Cone 6 1222 deg.C. -
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SPODUMENE 29.00
BALL CLAY AK 12.00
FRIT A 2120 p 22.00
Dolomite 13.50
ULTROX 10.50
SILICA 15.00
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Seger Weight%
KNO 0.288 6.61%
CaO 0.302 6.26%
MgO 0.194 2.89%
Li2O 0.216 2.39%
Al2O3 0.345 12.99%
SiO2 2.755 61.21%
ZrO2 0.165 7.52%
TiO2 0.004 0.13%
K2O 0.001 0.04%
Na2O 0.287 6.57%
Al:Si 7.99
Expan. 7.15
ST 366.64
The results even better.
But what about my beloved the potter of the rest of the world?
The next one is theoretical as I do not have the redart
ABABI'S WAXY 3
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Cone 6 1222 deg.C. -
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SPODUMENE 27.00
RedArt Clay 17.00
FRIT 3110 30.00
Dolomite 13.50
ULTROX 12.00
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Seger Weight%
KNO 0.268 6.82%
CaO 0.333 7.07%
MgO 0.196 2.98%
Li2O 0.203 2.30%
Al2O3 0.315 12.13%
B2O3 0.033 0.86%
SiO2 2.585 58.77%
ZrO2 0.190 8.87%
TiO2 0.007 0.20%
K2O 0.044 1.57%
Na2O 0.224 5.25%
Al:Si 8.22
Expan. 7.10
ST 365.60
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Yet, I have some of "yours" so I tested this way:
ABABI'S WAXY 4
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Cone 6 1222 deg.C. -
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SPODUMENE 24.00
EPK Kaolin 11.50
FRIT 3110 33.50
Dolomite 14.00
ULTROX 10.00
SILICA 7.50
Red Iron Oxide 1.00
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Seger Weight%
KNO 0.275 6.62%
CaO 0.356 7.39%
MgO 0.186 2.77%
Li2O 0.183 2.02%
Al2O3 0.344 12.95%
P2O5 0.001 0.03%
B2O3 0.037 0.95%
SiO2 2.697 59.92%
ZrO2 0.160 7.30%
TiO2 0.002 0.05%
K2O 0.026 0.92%
Na2O 0.249 5.70%
Al:Si 7.84
Expan. 7.16
ST 365.64
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The result: Good waxy but a bit glossier.
You can of course remove the RIO I like it.
THE GLAZES PURPOSE LIKE IN CARLTON BALLS BOOKS: TO BE ON DARK WARE
TO EMPHASIZE THE BEAUTY OF THE DARK UNGLAZED PARTS OF THE WARE.
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
and also
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
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