Currie glaze tests by Kathy Greaves
Glaze tests carried out using Ian Currie's grid method, as outlined in Revealing Glazes
Click on any tile for an enlarged image.
Clay is IMCO Cone 5 porcelain Firing schedule was: 200F/hr to 250F, 400F/hr to 1900F, 200F/hr to 2000F, slowed to stall to 2144F, -500F/hr to 1900F, -150F to 1500F, kiln off. Large c/5 down, c/6 at 2 o' clock.
Corner C= Ferro Frit 3134 30%; Nepheline Syenite 30%; Whiting 20%; Talc 20%
Clay is IMCO 50/50 Stoneware. Firing schedule was: 200F/hr to 250F, 400F/hr to 1900F, 200F/hr to 2000F, slowed to stall to 2144F, -500F/hr to 1900F, -150F to 1500F, kiln off. Large c/5 down, c/6 at 2 o' clock.
Corner C= Frit 3134 46%; Custer Feldspar 38%; Talc 9%; Whiting 7%
Clay is IMCO Cone 5 porcelain. Firing schedule was: 200F/hr to 250F, 500F/hr to 2000F, 150F/hr to 2190, -150F/hr to 1500, kiln off. Large c/6 at 5 o' clock.
Corner C= Frit 3134 46%; Custer Feldspar 38%; Talc 9%; Whiting 7%
Clay is IMCO 50/50 stoneware. Firing schedule was: 200F/hr to 250F, 500F/hr to 2000F, 150F/hr to 2190, -150F/hr to 1500, kiln off. Large c/6 at 5 o' clock.
Corner C= Frit 3134 46%; Custer Feldspar 38%; Talc 9%; Whiting 7%
Clay is cone 10 porcelain, fired to cone 10 in reduction.
Corner C= Frit 3134 46%; Custer Feldspar 38%; Talc 9%; Whiting 7%
Clay is cone 10 stoneware, fired to cone 10 in reduction
Currie grids in pursuit of cobalt greens, page 1, thumbnail version
More Currie grids in pursuit of cobalt greens, page 2, thumbnail version