Mark C. Posted February 29, 2016 Report Share Posted February 29, 2016 This title is for Nerd I figured you will see it. I was wonder if you had seen this piece in the latest Ceramic Industry magazine (feb 2016 vol 166 issue#2) or online at their site. Subscriptions are free. Anyway there is some good stuff on tile making process on the industrial level Link to comment Share on other sites More sharing options...
glazenerd Posted February 29, 2016 Report Share Posted February 29, 2016 Mark: Ty for the link. I have read some of their articles from time to time, but not recently.. Will check it out, am always interested in learning. Nerd Link to comment Share on other sites More sharing options...
Magnolia Mud Researdh Posted February 29, 2016 Report Share Posted February 29, 2016 Mark, What is the link to the CI article? LT Link to comment Share on other sites More sharing options...
Mark C. Posted March 1, 2016 Author Report Share Posted March 1, 2016 I get the paper magazine subscription-there is a web subscribing as well-both are free but you need to register.You need to reregister every year to keep current. feb 2016 vol 166 issue#2 www.ceramicindustry.com Link to comment Share on other sites More sharing options...
glazenerd Posted March 1, 2016 Report Share Posted March 1, 2016 Mark: Was reading article from a science/technology resource on clay body formulations. Found it very interesting that they are beginning to move away from the Seger Unity Formula into percentage levels based on "light", "medium" and "heavy" kaolin and ball clay. Noting a maximum of certain minerals such as FE @ 3%. Curious to see what new formulation methods they end up adopting. http://www.ceramicindustry.com/publications/3 < click here LT Nerd Link to comment Share on other sites More sharing options...
Mark C. Posted March 1, 2016 Author Report Share Posted March 1, 2016 What caught my attention was tile heading towards 3.3 feet in size and at a minimum thickness. The problem one gets with is size and how to overcome the defects was most interesting . Link to comment Share on other sites More sharing options...
glazenerd Posted March 2, 2016 Report Share Posted March 2, 2016 They have been doing wafer/bisquit pressing for almost a decade now. 3/16" talc body in the center with a veneer of porcelain on the top and bottom. Talc is much more stable and denser. They by all accounts dry press, with 4% or less moisture. Of course if we all had room for 100ton presses we could do that too: and skip the bisque firing all together. Nerd Link to comment Share on other sites More sharing options...
PeterH Posted March 2, 2016 Report Share Posted March 2, 2016 Was reading article from a science/technology resource on clay body formulations. Found it very interesting that they are beginning to move away from the Seger Unity Formula into percentage levels based on "light", "medium" and "heavy" kaolin and ball clay. Noting a maximum of certain minerals such as FE @ 3%. Curious to see what new formulation methods they end up adopting. http://www.ceramicin...publications/3 < click here LT Nerd Sounds very interesting, but I'm having problems finding it. Would it be possible for you to post the articles title? Regards, Peter I couldn't find it in the March 2016 issue your link takes me to, and I'm having no luck with the search facilities. Titles like Understanding Clay Body Formulation sound promising, but I can find little mention of kaolin and none of heavy/medium/light forms (whatever they might be). Link to comment Share on other sites More sharing options...
Mark C. Posted March 2, 2016 Author Report Share Posted March 2, 2016 After clicking on the link-then choose the February 2016 in window on right then choose ( Studying Deformation and Tension in Traditional Ceramic MaterialsYou will need to register to view entire articles as I have said-There is a box that pops up that you can register your e-mail Link to comment Share on other sites More sharing options...
glazenerd Posted March 2, 2016 Report Share Posted March 2, 2016 Peter: http://www.sciencedirect.com/science/article/pii/S0169131714000283 Clay body research. You can request a "guest" viewing. Nerd/Tom Link to comment Share on other sites More sharing options...
PeterH Posted March 2, 2016 Report Share Posted March 2, 2016 Mark: thanks but I'd already managed to get access to the Deformations and Tensions article. I'd thought that Nerd/Tom was referencing another article in the same journal, and I was majestically failing to find it. Nerd: thanks, found it. Regards, Peter Link to comment Share on other sites More sharing options...
glazenerd Posted March 3, 2016 Report Share Posted March 3, 2016 Mark: "The specimen appears concave. The curve shows a negative peak at 600°C, after the glass transition (a quartz to b quartz) occurring in the ceramic body." This is a point I have long questioned and long wondered about. In reading articles about glass: this same temperature is stated as the critical annealing temp to avoid expansion problems. They are suggesting that COE issues can be resolved by paying close attention to this temperature range. Also suggesting that if holds or cooling is controlled during this temp that crazing and other COE issues will not be present regardless if clay and glaze COE are mismatched. I strongly suspect that technology will be changing our thinking in the very near future. Currently, the quartz inversion temp is the only issue on our radar. Nerd Link to comment Share on other sites More sharing options...
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