Tuesday, June 5, 2012

firing found materials

 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.

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.

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.
Lat Long 46.23915301482282, -120.25473833084106
This is the site where I collected samples A and B, this location is on the Yakama Indian Reservation. 


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

Flasho Rama (A)

Neph Sy            80g
Dolomite            12g
Kona                     4g
Flint                      4g
Bone Ash (E)

G 200 Feldspar
40
Dolomite
30
EPK
25
Bone Ash
5
Burnt Umber 3g


Bone Ash (E1)

G 200 Feldspar
40
Dolomite
30
EPK
25
Bone Ash
5

(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



Here are the recipes for those glazes:


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%

5A Leach White
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

NC-4 Feldspar:           55%
Whitening:                  6%
Silica:                          20%
Frit 3110:                    15%
Zinc Oxide:                 4%

Copper Carbonate:      .8%


Whitening:                  21.2%
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%