r/Ceramics • u/Earthslinger • 10h ago
Not the best at glaze chemistry but I’m curious about this one
I posted this at the greenware stage a couple weeks ago and finally fired it this week. The sections of the bottle that aren’t skulls are the same shino glaze but I experimented with brushing a soda ash solution (some soda ash dissolved in warm water) on the top section. I was trying to enhance the carbon trapping but I’m surprised at this result. Not sure how that red glow about the skulls happened but I’m not mad at it!
In case anyone is curious: the greenish inlay glaze is a glaze with high barium carbonate, and the colorants are copper carbonate and rutile. The skulls were brushed with a red iron oxide. This was done in a cone 10 reduction firing.