Chrome Colors
This glaze is a micro-crystalline glaze containing barium oxide
and tin oxide. It's mixture of blue, green and yellow colors
This glaze tsabar-chrome-Z2D, from which this glaze is derived,
The balance of the alkaline earth basic components of the glaze was
modified,
inside of bowl:
Outside of bowl:
150 deg F an hour to 250 deg F
400 deg F an hour to 1800 deg F
300 deg F an hour to 2050 deg F
120 deg F an hour to 2310 deg F with a hold of 20 minutes at 2310 deg F
300 deg F an hour to 1750 deg F then a half hour hold at 1750 deg F
300 deg F an hour to 1700 deg F then a Three hour hold at 1700 deg F
25 deg F an hour to 1650 deg F then a one hour hold at 1650 deg F
This glaze has .2% Chrome Oxide added
K2O 0.06
Al2O3 0.4
SiO2 2.3
molecular percent Silica 60%
If applied unevenly, as on the inside of the bowl, a range of yellows, greens
and blues are visible. The green is not
The glaze tsabar-chrome-Z2D, from which this glaze was derived was a blue
stony matte, and underfired.
That a slight change in the bases had such a strong effect on the color gives
hope that the range of colors available
The glaze is somewhat thinner on the outside than on the inside. The
color shift with such a small change in
as a result
of the addition of chrome oxide.
some CaO has been replaced by BaO.
tsabar-chrome-Z2D-2F
bowl is ~3 inches in diameter
oxidation firing to cone 10 in an electric kiln
Firing profiles
Up Fire profile
Down Fire Profile
Clay body is a grolleg porcelain from Tacoma Clay Art Center.
glaze compositions
Empirical Formula glaze tsabar-chrome-Z2D-2F :
Na2O 0.19
CaO 0.38
MgO 0.01
BaO 0.36
SnO2 0.16
Remarks
the harsh color
usually associated with chrome green. A somewhat thinner application produces
a pale blue.
This glaze is a waxy matte,
and is not underfired, which was the intent.
from chrome is large.
application thickness is impressive.