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Derek Philip Au

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Porcelain Stone

by Derek
January 17, 2015

Tests of local porcelain stone, glaze stone and glaze ash at a local materials shop in Jingdezhen.

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Thank you patrons!  Made possible by your suppor Thank you patrons!  Made possible by your support, tonight Glazy will be getting a new server with double the memory, a larger SSD hard drive, dedicated CPUs and updated OS & software. Glazy will be offline for about 30-60 minutes starting from 11PM US Eastern Time (3:00 AM GMT). #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
Glazy Blends!   Many of the tests you can find Glazy Blends!   Many of the tests you can find in Glazy's Instagram feed are made using Volumetric Blending.  In the past, it was difficult to calculate the actual recipes of the blended tests.  But now, Glazy's Calculator can now automatically create Line, Biaxial, and Triaxial blends for you! This function is only available for Paypal and Patreon patrons who've pledged $2 a month or more.  Thank you for supporting Glazy! #biaxial #triaxial #volumetricblending #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
New Calculator Feature:  Search by oxide Enter New Calculator Feature:  Search by oxide Enter an oxide like "b2o3" to search for materials containing that oxide. Percent analyses are now shown with each material in the calculator list. #calculator #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
New Video:  How to Use the Blending Guides This New Video:  How to Use the Blending Guides This short help video shows you how to use the Volumetric Blending Guides.  I've released the Blending Guides as free PDF downloads.  Both the video and downloads are on the Glazy Help website: http://help.glazy.org/testing/blending-guides/  (link in bio) #triaxial #volumetricblending #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
For an upcoming @redlodgeclaycenter group exhibiti For an upcoming @redlodgeclaycenter group exhibition, I wanted to try to make my "Painted" series of high-fire reduction celadon work in mid-fire oxidation.  This locally-reduced Silicon Carbide (SiC) Bristol Celadon glaze isn't perfect.  Some have slight areas of carbon trapping on the interiors, and I didn't have time to completely resolve the bubbles.  But I'm happy to have gotten some work out in time for the show. Again, special thanks to @pricklypotter, @potterbenstudio and @dreamsofceladon for the groundwork in SiC reduction. Recipe in bio: https://glazy.org/recipes/92879 #painted #celadon #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
Today I'm releasing both the Triaxial Blending Gui Today I'm releasing both the Triaxial Blending Guide and Line & Biaxial Blending Guide.  You can buy these as beautiful, Museum-quality posters on Glazy's Etsy store, or you can download the PDF's for free.  You can print the PDF's yourself or save them on your mobile device for handy reference in the studio. Volumetric Blending is the easiest way to quickly create a large number of tests by mixing batches of only 2-4 "corner" recipes.  Many of the tests you can find in Glazy's Instagram feed are made with this method.  But it can be difficult to remember the proportions for each syringe test batch.  These blending guides make Line, Triaxial, and Biaxial Blends simple! http://help.glazy.org/testing/blending-guides/  (link in bio) #triaxial #volumetricblending #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
Glazy Series:  Volumetric Blending Basics Popul Glazy Series:  Volumetric Blending Basics Popularized by Ian Currie, Volumetric Blending is an easy way to create blends between two or more recipes.  We can blend anything- glaze recipes, clay bodies, even smoothies and bread dough. Starting with equal recipe batch weights (for example, 100 grams), mix/sieve each batch and then add water until all batches have the same volume.  Now blends between recipes can be made using volume. Please see link in bio for the article and video! #volumetricblending #triaxial #biaxial #theglazyproject #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
These celadons are not "fake".   The colors in These celadons are not "fake".   The colors in these glazes are all produced by iron, from yellow to green to green-blue, from oxidation to reduction.  But they were all fired in the same kiln, using a simple oxidation cone 6 firing program with no special firing or cooling schedule.  The only variables were the addition of silicon carbide (SiC) and zinc oxide. This series of tests is especially indebted to the groundwork laid by @pricklypotter, @potterbenstudio and @dreamsofceladon. Visit link in bio for more information, discussion, as well as recipes. #celadon #craft #glaze #glazes #glazerecipes #glazetest #ceramics #pottery #ceramicglazes #glazechemistry #glazechem #glazecalc #umf #glazy
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