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Ceramic Raw Materials
Do you need to learn what ceramic raw materials are and how they function in clay and glaze recipes? Well, you’ve come to the right place. We’ve gathered some great articles on ceramic raw materials and plopped them right into this section. Learning how these materials work together enables you to better achieve the results you want in your work. Plus, if you haven't already, be sure to download your free copy of the Buyers Guide to Ceramic Supplies and Materials, a directory of ceramics suppliers carrying all the raw materials you will need, plus reference material for the studio artist - professional or amateur, student or teacher.
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December 22, 2009
Feldspars are minerals of varying composition commonly used by potters. Feldspars form a glassy, white surface when fired high enough. They have a very long range, they begin melting at cone 4 and continue fusing beyond cone 10. They also tend to stiffen a glaze due to their high alumina content. In ceramics there are two basic categories of feldspars: potash feldspars, in which the primary melting oxide is potassium, and soda feldspars in which the primary melter oxide is sodium. Soda and potash have the highest thermal expansion and contraction rate of all the ceramic melter oxides, they promote color brilliance and luster at most firing temperatures, and they encourage specific color results.Soda feldspars melt at a ...
April 22, 2009
Slip, Engobe, or Underglaze? Robin Hopper Demystifies Three Common Pottery Materials
Today, Robin Hopper explains the similarities and differences between slips, engobes, and underglazes and gives some ideas for how to use these materials to decorate pottery and ceramic art. Plus he shares three recipes for basic engobes.
April 8, 2009
Rosette Gault, an expert on paper clay, explains some basics of paper clay preparation and takes you through the process with some step-by-step photographs. Plus she gives some health and safety tips for working with paper clay.
