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Matt Oz

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Everything posted by Matt Oz

  1. Define Plasticity

    stretchiness
  2. How To Achieve Infinite Dimension In Your Glaze?

    I opened the box, the cat was dead......Sad.
  3. Glazing With Bubbles

    Here is more info on the technique from 2013: http://community.ceramicartsdaily.org/topic/4445-dish-detergent-in-glaze-makes-bubbles-how-please/
  4. The only way to be sure it's safe, is to send the pizza to a certified lab for testing.
  5. New Bartlett Controler

    Looks like they have some competition and this one is already on the market. http://www.kilncontrol.com/explore/ http://www.evenheat-kiln.com/?pg=showcase-center&id=tap-controller
  6. Spodumene

    Fun fact, the original 7UP had a small amount of lithium in it.
  7. Glaze Change Over Time

    To add to what the other Matt said, is there a smoker in the household, that can turn things yellow.
  8. Leaf lamp

    From the album some work

    Leaf lamp with porcelain lampshade
  9. Translucent Plate

    From the album some work

    Test Plate using experimental porcelain
  10. Rain, Rain, Rain

    Rain, rain, go away Come again another day Little Arthur wants to play.
  11. Looking For A Specific Clay Body

    We have cookies!! (And butter tarts.) I want poutine!!
  12. Tiny Bubbles Suspended In Clear Glaze

    Tiny bubbles In the glaze Make me happy Make me feel fine Sorry, I'm old
  13. I must concretize this and give you an answer on an indeterminate date.
  14. If there is wollastonite in the clay body, this can happen.
  15. Get the proper amount of sleep..zzzzzzzz
  16. "Measure twice cut once" is that pottery related, I can't remember. My last name starts with Oz, so, skip the wine and have a slab of beer.
  17. Glaze Amounts

    I do approximately 12,000g for a 5 gallon bucket.
  18. Members With Etsy Stores?

    A lot of juried shows in my area do allow slip cast wares, as long as you designed the mold yourself, and high fired porcelain, bone china, stoneware, all types of clay are used.
  19. I like to do a lot of experiments formulating translucent cone 6 porcelain bodies and wanted to show the difference in translucency of kaolins. I use this recipe with Grolleg and did not compensate for more refractory kaolin's when mixing up test batches, but from doing various tests in the past these results seem close enough. Cone 6 Porcelain 50 Kaolin 20 Silica 325 mesh 20 G-200 feldspar 4 Talc 1 Veegum T 5 Wollastonite Add: 2 Frit 3134 2 Bentonite For the test tiles I give the percentage of titanium and iron that the kaolins contain, referencing digitalfire.com with each sample because: Titanium (TiO2) affects translucency and color. Iron (Fe2O3) affects color, and less so translucency. Tiles are approximately 3/32" thick (2.4 mm), fired in an electric kiln. Back lit with led bulb. Left to right: New Zealand Halloysite (kaolin) TiO2___0.05% 2nd lowest Fe2O3_ 0.25% Lowest Grolleg TiO2___0.03% Lowest Fe2O3_ 0.70% 2nd highest EPK TiO2___0.37% 2nd highest Fe2O3_ 0.79% Highest #6 Tile TiO2___1.40% Highest Fe2O3_ 0.50% 2nd lowest
  20. A while ago I did some experiments with a cone 6 clear in a electric kiln that has lots of tiny bubbles in it when applied thicker, I made some small tiles (about 1 1/8" square) out of black clay so the bubbles would have good contrast and because they're fired horizontal I got a nice even spread of bubbles. Some tests have additions of Mason stain. The first tile has white clay inlaid in the black clay with small pieces of a glassy porcelain I have that were placed on top of the glaze prior to firing. Tile three has 1% Mazerine stain added to the clear with a streak of white glaze on top and a ball of porcelain. The last one is 4% Praseodymium with porcelain additions. Close ups: Tile one Tile one closer Tile three The glaze is: 25 3134 15 Custer 20 Kaolin 20 Silica 20 Wollastonite Not the most compatible of glazes but bubbly. I don't remember exactly how thick the clear was but at least 4 coats and if applied too thick the glaze becomes too cloudy. I haven’t experimented with this enough to know if it's useful or practical to do it this way, but found it interesting.
  21. I thought the movie, while not perfect, was entertaining.
  22. Doesn't this boil down to how much clay you use, if you're production potter and need tons at a time, than mixing your own is probably not the way to go, but a few hundred pounds at a time of your own clay body, not a big deal. Also if you mix your own clay, your able to mix it into a slip like Joseph is doing, it's a good way to go for quality clay. I have some of my own specialty clay bodies that have to mixed into a slip first. As far as the dust hazard and my non expert opinion, if you mix up your own glazes as a lot of potters do, I would think you would be set up to handle at least smaller batches of clay.
  23. A watched pot never dries
  24. Curt, Thanks for sharing your microscope pictures and other info. To answer your question about if I use a ball mill, the only thing I do is put the glaze through a 100 mesh sieve. I haven’t compared it to lower meshes for bubbles, so I don't know what the differences are.
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