A line blend

The end members of this line blend are not matured - two of the middle tiles are nearly so;
an increase in fusibility in the middle of the line blend.

The tiles were glaze out to the edges. the glaze soda_H1_1 has high surface tension and curled up.
The glaze on the tiles was thick in the center and cracked before going in the kiln,
causing glazes with high surface tension to crawl.

The white specks are tinsy bubbles under the glaze surface.

caAlSi_0 is an approximation to the CaO-Alumina-Silica eutectic.

This line blend is part of the "Glaze source Quest" begun here . Where does melting begin,
and which glazes mature slowly in an extended temperature range. To find those glazes, I must find the
bottom of their melting window.

oxidation firing to cone 4 in an electric kiln

Firing profile

150 deg F an hour to 200 deg F with a one hour hold

400 deg F an hour to 1246 deg F

120 deg F an hour to 2124 deg F with a hold of 20 minutes at 2124 deg F

Clay body is a cone 6 B-mix from Georgies Ceramic Supply.