Raw Materials Cookbook 2008 - Alfred's Clay Store - Alfred University

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Raw Mats - Fall 2008 - Carlo Sammarco - NYSCC @ Alfred UniversityName:Purpose of Research:Firing Range:Allison Craver & Caitlin O’BrienA colored casting bodyCone 3Recipe(s):Revised Wally’s WonderslipGoldArt 21Tennessee #10 10EPK 12Custer Feldspar 24Frit 3124 8Flint 25Total 100%Darvan #7 1.016%Water ?Revised Wally’s Wonderslip(adjusted for colorants)GoldArt 18.9Tennessee #10 9.0EPK 10.8Custer Feldspar 21.6Frit 3124 7.2Flint 22.5Colorant 10Total 100%Darvan #7 1.016%Water ?Development:In order to conserve energy, several professors and practicing artists at Alfred University have startedfiring at lower temperatures. It will be important to have a full catalog of new recipes that have beentested and proven at these temperatures—which is why we chose to develop a body for Cone 3. Thegoal of our research was to create a Cone 3 casting body for both functional and sculptural wares. Weintended to make a body to add colorants to. Once we had a working recipe, adding colorants would bean easy way to control the color of the body.We used a revised version of Wally’s Wonderslip to encourage the formation of more glassin the body. Our results were difficult to interpret because the kilns under-fired each time. Our firstcast samples (using the Revised Wally’s Wonderslip for Colorants) felt smooth and chalky and whentapped and emitted a dull tone rather than a high ping usually associated with fired ceramics. Shrinkageand Absorption tests were performed on the set of cast samples. Shrinkage was minimal but the tilesabsorbed up to 19%, which could be a result of under-firing but was discouraging nonetheless. A secondset of samples were cast, fired, and glazed with several different Cone 3 glazes. The body reacted well toglazing, there was no crazing or shivering but again the kiln did not reach temperature and the glaze wasunder-fired. Overall the Revised Wally’s Wonderslip recipe produced promising results for Cone 3 andwith a little more research to confirm these results could be a valuable addition to recipe books.1
Raw Mats - Fall 2008 - Carlo Sammarco - NYSCC @ Alfred UniversityDrops ofDarvan #7Revised Wally’s Wonderslip(viscosity notes)Observations2 Thick Paste4 Paste6 Slightly Thinner - still quite thick8 No noticeable change10 Still think, but beginning to smooth out12 Slightly thinner14 Noticeably thinner16 No change18 Consistency of a milkshake20 --- not tested ---22 Could be poured, still thick24 Consistency of cream26 Noticeably thinner28 Thin, runs off stirrer30 Slightly thinner32 Slightly thinner34 Beginning to become runny36 Slightly thinner38 No change40 No change42 No change44 No change46 No change48 Slightly thicker50 No noticeable changeRevised Wally’s Wonderslip(short term gelling and settling notes / 25 minute test)Drops of ObservationsDarvan #734 Thick layer on bottom, but no gelling / no settling36 Somewhat gelled / no settling38 No gelling / no settling40 No gelling / no settling42 No gelling / no settling44 No gelling / no settling46 No gelling / no settling48 No gelling / no settling50 No gelling / no settling2
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Raw Materials Cookbook 2008 - Alfred's Clay Store - Alfred University

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