Avaviel Posted November 25, 2012 Report Share Posted November 25, 2012 I'm rather fascinated with Japanese and Oriental ceramics. I've noticed a tendency for their pots that are used daily, such as teapots and tea cups without handles, to have a rough dark glaze. Edit: the inside of the cup/teapot would be food safe smooth glaze, and the outside rough. I'm not wanting to go as far as Lucie Rie with her crater glaze, my goal is a porous soft surface that a cup can have a hot drink, without burining the person's hand. I've read that silican carbide in tiny amounts (0.5% to 1%) can cause the bubbling. Are there any other materials that can be used to get similar results? Such as a matt surface the does not transfer heat — as if you were holding a rock. Are there any glaze recipes the are a useful starting point for my testing? I'm looking for cone 10 glazes, but I'm sure I could modify cone 6 glazes. As for background, I'm an art student at a college, with access to glaze chemicles for making test glazes. (They let me in the glaze playground!) Link to comment Share on other sites More sharing options...
Diane Puckett Posted November 25, 2012 Report Share Posted November 25, 2012 I wonder if you are seeing very high grog pottery which has been glazed on the inside and fired in a wood kiln. Check out Akira Satake's work at www.akirasatake.com . The only time I saw Akira throw one of his tea bowls, he used Highwater's Craggy Crunch clay. I believe he wood fires. Link to comment Share on other sites More sharing options...
Avaviel Posted November 26, 2012 Author Report Share Posted November 26, 2012 I love wood fire glazes! However, that isn't quite the style I want. I think I made a misnomer when I said Japanese tea cup, I'm referring to a few tea cups I own. I'll post a few links at the bottom of this post to similar things, and at some point I'll take a photo of the particular cup. The style may be described as a metallic matte? A plan matte glaze is something I'd avoid (the reasoning being that I'd rather color the clay or use a slip for a plain matte.) I'll be using porcelain exclusively for the time being (I'm in love with the stuff!) I just found out that I'm in love with ceramics, so forgive me if I go all over with my thoughts! I want to learn as much as I can about the chemicals so I can make the glazes do what I need/want them too. The one on the right: http://www.freeforms...ia/DSC_0118.jpg http://img0.etsystat...939884_6fu7.jpg Lastly, all of this has a simple goal: To be able to make a tea cup that does not need a handle, and isn't piping hot to the touch when just-boiled water is placed in the cup. I can tell this will be a life long adventure. Link to comment Share on other sites More sharing options...
Lucille Oka Posted November 26, 2012 Report Share Posted November 26, 2012 I like your energy. Historically studying the early days of tea you will find that it was not served 'piping' hot. Even today given the steps to a perfect brew, the tea will never be so. There will be many interesting things you will uncover in your research from downright fascinating to utterly disgusting. But I leave this for you to find on your own. There is a book that I think you would enjoy, it is called 'Chinese Glazes; Their Origins, Chemistry, and Recreation' by Nigel Wood; A & C Black, London; University of Pennsylvania Press, PA. Also you may like to read a good book on tea and porcelain- ‘Liquid Jade: The Story of Tea from East to West’ by Beatrice Hohenegger. Both can be found at a good library or very reasonably priced at Amazon.com Link to comment Share on other sites More sharing options...
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