Reduction Crystalline Glaze

Reduction Crystalline Glaze

Recently I've been researching crystalline glazes experimenting with recipes and firing schedules. I took this on not knowing how much work it would be but after about 6 month I am finally getting stable and consistent results. I think one if the biggest challenges with this class of glaze is keeping it off your kiln shelfs. Another problem I had was achieving diverse colors that were also safe and functional as drink and dinning ware. I think the colorents I ended up getting the most diverse range of colors from were red iron and copper carbonate but that was just the beginning. I found some research being done on reducing crystalline glazes after the oxidation firing to achieve more vibrant and rich color.

△6 Oxidation  △08 Reduction
This process does requires a gas kiln, for my first couple attempts I was using a modified electric kiln and weed burner but I was not getting as consistent of results as I wanted. I invested in a venturi burner set up and now I'm getting  results that I am pleased with. I think one my first focus was to play with various oxide variations to achieve different color combinations.
 △6 Oxidation 1% Red Iron Oxide

Over all i think i enjoyed using Red iron oxide the most it give beautiful purple colors in reduction. 

 

 

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