the materials after the bisque fire from left to right are-
1: pure vantage hwy clay
2: 50/50 vantage and ball clay
3: 50% vantage 30% epk 20% thorp sand
4: 50/50 vantage and gold art
5: 80% vantage 20% thorp sand
6: a white vantage hwy body
after learning that the vantage would melt regardless, I chose not to put it in the ^10 firing and replaced it with a white body which i found on the west side near Shelton the results are that only numbers 2, 4, and 6 survived everything else had melted including what was found on the west side. unfortunately I did not test the plasticity of the white vantage highway body but it felt nice and fired interestingly, turning more red after each firing.
Course Description: This course covers an investigation into materials and their effects in the media of ceramics. Glaze calculation and testing along with clay body tests will be the main focus of this course. Low fire, midrange and high fire temperatures will also be addressed. Investigation into indigenous materials will also be explored.
Tuesday, June 5, 2012
cool glazes
so from left to right we have-
1: Riets green 3% chrome over shino
2: green salt 3% nickel oxide
3: amer celadon over amber celadon 7% nickel oxide
4: amber celadon
5: Mashiko over shino with black overglaze
Monday, June 4, 2012
Triaxial Blend
Triaxial blend of Sodium-Ball Clay-Silica.
A- Soda Feldspar(Sodium)
B- Ball Clay
C- Silica
*Sorry about all my stupid watermarks, just ignore them.
*Sorry about all my stupid watermarks, just ignore them.
Indigenous Material Sources
(Sometimes I really hate Blogger) Sample A is on the Left Sample B is on the Right. The test sample on the bottom is Sample A taken to ^06.
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| Lat Long 46.23915301482282, -120.25473833084106 |

The dots you can barely see around the turquoise were made with slip on Sample B at 100% and fires to ^6 and the fired again to ^06.
The dots on this pitcher are slip work down with 100% sample A, and fired to ^10.

(left to right) Sample A to ^06, Sample B ^06, Sample B ^08, Sample C ^06
This site, also on the Yakama Indian Reservation is where I collected sample C. Sample C, I fired to ^08, ^06, ^6 and ^10. It was happy at all firing except for ^10.
This is Sample C marbled into a ^6 throwing clay body and fired bare to cone 6.
This is also Sample C fired to ^10 when mixed at a 50/50 ratio with Ball Clay. This piece has a light Shino glaze on it as well. The body is nice to throw but I had difficulty thinning the walls of the piece.
And finally samples D and E. D and E look promising when I dug them up but when I returned to the studio and compared them with my other samples the looked like dirt so I discarded them.
Favorite ^10 Glazes
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Flasho Rama (A)
Neph Sy 80g
Dolomite 12g
Kona 4g
Flint 4g
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Bone Ash (E)
Burnt Umber 3g
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Bone Ash (E1)
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(C2) VC Satin Black
Custer Feldspar 20g
Kona F-4 20g
Flint 20g
Dolomite 15g
Talc 13g
Ball Clay 10g
Whiting 2g
Red Iron Oxide 3g |
Sunday, May 20, 2012
Favorite Glazes- Ting Yi Yu
Here are the test tiles that I have made so far.
My favorite glazes are #4A, 5A, 7A, and 12A.
4A is Copper Red#2
5A is Leach White
7A is Seacrest Purple
12A is Chopper Red#2
4A Chopper Red#1
G200 - 73.8%
Gersley borate - 10.2%
Whiting - 11.1%
Flint - 4.9%
Chopper crab - .35%
Tin oxide - 1%
12AChopper Red#2
Gertsley borate - 8%
Whiting - 15%
Nepheline syenite - 13%
EPK - 9%
Flint - 30%
G200 - 25%
Ting oxide - 2%
Chopper carbonate - 1.5%
G200 - 40%
Flint - 30%
Whiting - 20%
EPK - 10%
Superpax - 8%
Ting oxide - 2%
7A Seacrest Purple
G200 - 53.7%
Whiting - 12.9%
Gerstley borate - 2.5%
EPK - 6%
Flint - 22.4%
Zinc oxide - 2.5%
Black iron oxide - 3%
Rutile - 3%
Glaze Samples - Jana Kay Jasman
Oxblood Glaze SAMPLE 2
Whitening: 21.2%
NC-4 Feldspar: 55%
Whitening: 6%
Silica: 20%
Frit 3110: 15%
Zinc Oxide: 4%
Copper Carbonate: .8%
Zinc Oxide: 2.7%
Frit 3110: 8.8%
EPK 17.5%
Silica: 24.9%
Cluster Feldspar: 24.9%
Coldbalt Oxide: 10%
Whitening: 21.2%
Zinc Oxide: 2.7%
Frit 3110: 8.8%
EPK 17.5%
Silica: 24.9%
Cluster Feldspar: 24.9%
Red Iron Oxide: 10%
Oilspot Combination Glaze SAMPLE 2
Cluster Feldspar: 23.6%
Silica: 29.2%
Whitening: 18%
Ball Clay: 29.2%
Yellow Iron Oxide: 13.5%
Oilspot Combination Glaze SAMPLE 1
Cluster Feldspar: 23.6%
Silica: 29.2%
Whitening: 18%
Ball Clay: 29.2%
Red Iron Oxide: 13.5%
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