Will a cone or ball flow out better in a melt flow test?

Sunday 14th June 2015

This is G2926B cone 6 transparent glaze. I am developing a simple test procedure to produce an absolute measurable value for glaze melt flow and it appeared it would be worthwhile to create a mold to make these cone-shaped samples. But I was wrong. Both specimens are exactly 10 grams, but the simple ball flows better. This is likely because of better early heat penetration because there is only a small area of contact with the tile.

Pages that reference this post in the Digitalfire Reference Database:

GBMF Glaze Melt Fluidity - Ball Test, Melt Fluidity

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.