Wednesday, February 24, 2010

Finally!

Here are the first of my glazed pots.


We had 5 glazes to chose from so I did some glaze tests to see how they flowed and how the engraving on the pots looked. There were a few that I liked but I am persuing other options because none of them showed up any lettering.

 


Here are the two bowls that I glazed last week. They seemed so big when I took them off of the wheel but now that they are fired and glazed, they seem a lot smaller. I know that there is some shrinkage in the kilns, but it seems like a lot to me. All my post seemed to be really small. I guess that I will have to try and throw some larger ones so that they can shrink down to a normal size instead of these tiny little things that I ended up with.

In any case, I should have a few more things to show sometime next week.

8 comments:

Dani said...

I love the white one with the tan rim. Can we see a close up?

Julia said...

Your little pots are lovely Jackie. Next time you turn some pots it would be interesting to take measurements with with a ruler of before and after firing to see how your clay shrunk.

mira's papa said...

Jackie, I agree with your mother. A little data on the amount of shrinkage would be very useful. Not being a potter, I have no idea what it might be, but it would be interesting. It probably changes with the type of clay too.

Liz said...

nice pots Jackie! I am with your mom and Bill on the measuring and shrinkage etc. I know that my clay, Tuckers 6-50 porcelain has an overall shrinkage of 13.5 %. A quick way to test is to measure a piece of clay at 10 cm. Mark it like a ruler. let it dry. then measure its dry shrinkage, fire it, measure it at bisque, and then fire it up to temperature, measure again. this should give you all the data you need. Alternatively, if you know the Body you are using, I presume its a tuckers body, just go to Atlantic pottery website under clays and look it up, the data should all be there.

DaviMack said...

Hmm. Going to buy some of your own glazes, then?

jackie said...

Thanks!
Liz, we are actually using the same clay body which means that I don't have to do any research.
And DaviMack, I actually spoke with the teacher of the class and he said that there were a few glazes that I could use that were not part of the classes "safe glazes". There is a celadon that is a light blue that is part of the regular fleet of "class" glazes that is usually around but at this point is running low but he will mix up some more. So there is no need to buy glazes. Even if Chris wasn't such a great guy, I could probably get permission from one of the other instructors to mix up a bucket of glaze seeing as the school has a history of teaching students the most economical way to do thing. This includes mixing your own clay bodies and glazes from powders that are ordered in in bulk.

Julia said...

At what cone are you firing your glaze or what temperature?

jackie said...

cone 6