New Ceramics : special effect glazes

THE NEW CERAMICS HERBERT PRESS

Contents Acknowledgements 7 Conclusion 147 Introduction 9 References 148 Section 1. Glaze principles and application 11 Bibliography 148 1 Understanding glazes 13 Appendices: 2 Glaze materials and minerals 17 1. Glaze materials UK:US materials 3 Colouring glazes 25 substitutions 149 4 Impurities and variation in materials 35 2. Orton cone temperatures 150 5 Stability and durability 43 3. Ceramic materials, chemical formula 6 Creating and testing glazes 51 and molecular weight 151 7 Glaze mixing and application 59 4. Limits for stable glazes 153 8 Firing 65 Periodic table of elements 154 9 Glaze 'defects' 69 5. Materials analysis for UK frits, clays and feldspars 156 Section 2. Special effect glazes 73 6. Materials analysis for US frits, clays and feldspars 157 10 Special effects: the chemistry 75 11 Crackle glazes 81 Suppliers 158 12 Ash glazes 89 13 Celadon and Copper red glazes 95 Laboratories for leach testing of glazes 159 14 Drippy glazes and Chun glazes 101 15 Crystalline glazes 109 Health and Safety 159 16 Shrink and Crawl: Lichen glazes 117 17 Volcanic, Lava or Crater glazes 125 Index 160 18 Spotted glazes 135 19 Metallic glazes 141 20 Layering glazes 145



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From drippy and crackle to ash and lichen glazes, experienced ceramicist Linda Bloomfield guides you through the world of special effect glazes. Beautifully illustrated with pieces from both emerging and established potters that showcase stunning copper oxide-blues, metallic bronzes and manganese-pink crystal glazes, Special Effect Glazes is packed full of recipes to try out: from functional oilspot glazes using iron oxide, to explosive lava glazes. In this informative handbook discover how you can create these fantastic effects and learn the basic chemistry behind glazes in order to adjust and experiment with your vnique pieces. Discussed are materials and stains, how to find them and how they affect the colour and texture of the glaze, alongside practical fixes to familiar glaze-making problems. Special Effect Glazes is essential for any ceram1c1st interested in creating eye-catching glazes and wanting to - develop their knowledge of glaze-making, or experiment with their own formulas to achieve the perfect finish. rti 1 R ll R l l' R I S :, ISBN 978-1-912217-87-8 lll lllllllllllllllllllllllll lllillllill°IIIII 9 781912 217878 v.\" \\\\ hlnomshltt \\ torn