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

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Raw Mats - Fall 2008 - Carlo Sammarco - NYSCC @ Alfred UniversityPre fired tests loaded in sagger. Colors are dueto food colorants added to each sulfate for easiervisualization of the application process.Fiber blanket was used to help retain heat andreach temperature faster.Samples after firing in the sagger.Crucible cooling after firing (note whitehotcrack).CONCLUSION:The tests were a huge success and will be ongoing in various forms. We will continue to use theC&J Porcelain in future tests, as well as different methods as it applies to application, firing, dilutionand substrate material. Concerning the tiles, we will attempt to achieve much thinner tiles for futureexploration with translucency of the porcelain.11
Raw Mats - Fall 2008 - Carlo Sammarco - NYSCC @ Alfred UniversityName:Purpose of Research:Firing Range:Recipe(s):James PastoreCompatibility between stoneware throwing and casting bodiesCone 10 OxVarious (see below)...Development:With throwing at the heart of my studio practice I decided to develop a casting body that wouldcomplement pots from the wheel. The goal of these tests was to find a compatible casting body thatwould shrink at the same rate as #570 and not have problems with cracking and shrinking. This wouldensure much cleaner, professional attachments of handles, springs, spouts, etc…I used Linda’s 570 stoneware in its original state and then created three revisions. The casting revisionsprogressively decreased the surface area of the #570 body in order to shorter casting times. Thiswas done by adding increasing amounts of Velvacast in each recipe. Also, the amount of Custer wasincreased to help melt the velvacast because it is cleaner and has fewer alkalis. The amount of grogremained the same in all the recipes, so settling changed from test to test.Original #570Hawthorn bond 35 24.85EPK 16.56Om-4 12.42GoldArt 24.85Custer Feldspar 8.28Fine Grog 13.04Total 100%Darvan #7 0.762%Water ?Surface Area 19.08 m 2 /gm12
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