Don't know if this is of any interest/help but I remember an old J. Am. Ceramic Soc. article on silicon
carbide reduction. Among other methods they added SiC into a slip which they bisqued before
applying the glaze. Seems that the SiC only decomposed when it was wetted by the molten glaze.
It might be one way of getting uniform SiC action for all the sub-tiles on a full-tile, and using the same
glaze batches on several full-tiles with different SiC content in the slips.
... But harder to use dancing men, etc.
- Joseph Fireborn likes this