Difference between oxidation and reduction! GR10-C matte on Plainsman H443

Thursday 11th July 2013

Same body, same glaze. Left is cone 10 oxidation, right is cone 10 reduction. What a difference! This is a Ravenscrag Slip based glaze on a high-fire iron stoneware. In reduction, the iron oxide in the body and glaze darkens (especially the body) and melts much more. The behavior of the tin oxide opacifier is also much different (having very little opacifying effect in reduction).

Pages that reference this post in the Digitalfire Reference Database:

Talc, Tin Oxide, GR10-C - Ravenscrag Cone 10R Silky Talc Matte, Reduction Firing, Oxidation

This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.