Early Glazy Prototype

Look familiar?  No, it’s not Glazy, it’s Jingdezhen 😜  Just a few samples from the glaze shops in Jingdezhen.  You can get spoiled being a ceramicist here, where amazing glazes from every dynasty in every color are available by the bucket!  Someday maybe Glazy will become a virtual Jingdezhen glaze shop!

Lipstick Purple Biaxial

“Painted” Biaxial based on Tom Coleman’s beautiful Lipstick Purple. Part of my “Painted” series of tests prepared for @northernclaycenter’s “Six McKnight Artists” exhibition.  Each row has a set Alumina level, while each column represents a specific Silica:Alumina ratio.  Coleman’s original recipe lies on the bottom row (Al2O3 0.4) between the second & third columns (Si:Al… Continue reading Lipstick Purple Biaxial

Qing Porcelain Stone Tests

These are melt tests of different types of porcelain stone from sometime at or before the Qing dynasty. Iron or blue qinghua underglaze was used to write place names and other notes on each test. Porcelain stone is an amazing material that primarily comes from a number of mines near Jingdezhen. Combining porcelain stone with… Continue reading Qing Porcelain Stone Tests

Paintings of the Traditional Porcelain Process

“Export” Art During the 18th Century, Guangdong province was the hub for trade with the West. The dialogue between Western merchants and artists with both painters and porcelain producers resulted in a unique blend of Chinese and Western styles. This blend was reflected in the painting styles for both Export Paintings as well as Export… Continue reading Paintings of the Traditional Porcelain Process

Koryo Celadon with Bone Ash and Manganese

Testing the effects of Bone Ash and Manganese Dioxide additions to a celadon base. Koryo Celadon #3 from Nigel Wood’s “Chinese Glazes”, “Recipe for Table 8b – Koryo celadons”. Originally tested by @macmakesflamingos. Forgot to mention: Fired to cone 10 in reduction. Grolleg porcelain body. 

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Copper Red Biaxial

Attempting a Copper Red with “normal” flux ratio of R2O:RO 0.3:0.7. (Most formulas I’ve seen have higher R2O levels of 0.4:0.6 or more.) Fixed 0.15 B2O, 0.02 SnO2, 0.01 CuO (1% Tin Oxide and 0.35% Copper Carbonate). Fired together to Orton Cone 10 in reduction starting at cone 010 with 30-minute oxidation hold at peak… Continue reading Copper Red Biaxial

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Xuande copper red

First attempt at a Xuande copper red based on analyses from Nigel Wood’s “Chinese Glazes”, “Copper in Chinese Glazes”, Table 71 “Analyses of Xuande and Yongle Jingdezhen porcelain glazes”, p 179.  Applied to Grolleg-based porcelain body, fired to Orton Cone 10 in reduction atmosphere.

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Reitz Purple Base Triaxial

A triaxial blend using Reitz Purple base with additions of Red Iron Oxide and Light Rutile.  Fired to Orton Cone 10 in both oxidation and reduction.  The most interesting tests are the intermediary glaze containing both iron and rutile.

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Fine-tuning a Recipe

Creating a small Si:Al biaxial test to “fine-tune” a recipe, in this case Reitz Purple.Using the Glazy calculator, four “corner” recipes were created.  Volumetric blending using a syringe was used to create the intermediary glazes.  Tests fired to Orton Cone 10 in both oxidation and reduction.  For more information, see: https://glazy.org/u/derekau?collection=11075 Cone 10 Reduction: Cone 10 Oxidation: #glaze… Continue reading Fine-tuning a Recipe

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“Dry Glazes” by Jeremy Jernegan, 2009

I’ve just added some glaze tests from “Dry Glazes” by Jeremy Jernegan, 2009. Some interesting decorative textures and effects, although a number of the glazes were overfired at cone 10.  I’ve added even the “bad” tests, though, so that others can double-check their own tests or even avoid those recipes entirely.

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Rapid Glaze Calculator

Rapid glaze calculator designed by Colin Pearson and Dennis Healing. Published in “Glazes for the Craft Potter” by Harry Fraser, 1998.

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Harlan House Glaze Tests

Absolutely beautiful results from tests of Harlan House’s recipes. Pictured here are tests of Harlan’s Jun, March Crackle, HH Shino and HH Celadon.  Both March Crackle and HH Celadon have lovely satin surfaces, while the Jun is one of the best I’ve seen, falling neatly in the same high-silica “Jun” region as the ancient Chinese originals.… Continue reading Harlan House Glaze Tests

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“My Work, My Way” by Harlan House

Newly-published book and recipes from Harlan House! Earlier this year, the pioneering ceramicist Harlan House published “My Work, My Way: Fifty Years in the Studio”. Part autobiography, part studio guide, Harlan’s lovely stories are interspersed with technical tips, special techniques, and recipes he developed over decades.  Harlan is generously offering his book as a free download,… Continue reading “My Work, My Way” by Harlan House

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Cone 6 Clear with Various Mason Stains

As Glazy grows, it becomes a “Pantone” reference library of glaze color. Various Mason Stains in 8%, 4%, and 2% additions to a Cone 6 base, Celadon Clear, on Standard #551 porcelain and fired in Oxidation at Orton Cone 6. All recipes and photos available on Glazy: https://glazy.org/u/derekau?collection=10300

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Clara Giorello

Glazy is a collaboration of ceramicists from around the world.  One of Glazy’s most active users, Clara Giorello, is from Buenos Aires.  Clara has added more than 350 recipes with photos and copious notes, including firing schedules and suitable material substitutions for South American potters.  Thanks so much, Clara!  @claragiorello https://glazy.org/u/giorello

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Various Copper Red Tests

Various new tests of Copper Red glazes and variations now available on https://glazy.org All glazes fired to orton cone 10 in reduction starting at cone 010 with oxidation hold at peak temp. Special thanks to @pete.pinnellfor his Copper Red firing tips (found in the Clayart archives).

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Rare Earth Oxides Glaze Line Blends

Line blends of Erbium Oxide, Neodymium Oxide, and Praseodymium Oxide in a clear glaze base (Mahavir Clear) fired to Orton cone 10 in both oxidation and reduction atmospheres. All recipes and photos available on https://glazy.org

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Glazy in Russian!

Really excited to collaborate with @ovo_ceramics, who not only translated Glazy into Russian but also shared Glazy with his followers!  большое спасибо!

陶瓷配方资料馆

Glazy.org是一个完全免费的陶瓷配方资料馆, 现在网站支持多种语言啦,包括中文!在这里你可以查找你想尝试的釉料配方,记录你的釉料实验过程和结果,上传釉料试片照片,可以看到化学成分分析,可以计算原料配比,等等。Glazy资料馆的完善度依赖于陶艺家们的分享。Glazy是Derek Au在2015年创建的。截至2019年3月,Glazy已经含有超过8000个坯体泥料配方和釉料配方。这些都是来自全球各个国家的陶艺家们试验研究成果,由他们自己录入和分享的。Glazy 也诚恳地接受艺术家们对网站的反馈,会不断地维护,成长和完善,并且响应他们对网站的功能需求。  #陶艺#陶藝#陶艺家#陶瓷#釉#釉料#釉薬#试釉#景德镇#试片#Glazyorg