leaf print

This leaf print uses a thin high phosphorus glaze layer on a late maturing glaze. The background glaze has a
smooth finish, in contrast to the leaf shown here . where the leaf print is lovely, yet the matrix glaze is
unattractively textured.

The glaze satIron_ZG_0_PK_MLi, the matrix glaze for this leaf, has a broader firing range than the glaze in
the above note.



glaze satIron_ZG_0_PK_MLi leaf wash leaf_Z3K.

full view

plate is ~ 8 inches in diameter.



oxidation firing to cone 10 in an electric kiln

Firing profiles

Up Fire profile

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

Down Fire Profile

300 deg F an hour to 1750 deg F then a four hr hold at 1750 deg F

25 deg F an hour to 1650 deg F then a one hour hold at 1650 deg F

Clay body is a grolegg porcelain from Clayart Center in Tacoma, WA.



glaze compositions

Empirical Formula satIron_ZG_0_PK_MLi :

K2O        0.12
Na2O       0.69
CaO        0.18
MgO        0.01

Al2O3      0.64
Fe2O3      0.22

SiO2       3.23
P2O5       0.10

molecular percent Silica 62.2%



Empirical Formulae of leaf wash glaze leaf_Z3K:

K2O        0.43
Na20       0.53
CaO        0.04

Al2O3      0.54

SiO2       3.34
P2O5       0.15
TiO2       1.90

molecular percent Silica 48%



A leaf is softened by soaking in water laced with water softener. After the pot is glazed, the leaf is pressed
into the glaze. When the glaze dries, a swatch of plate including the leaf is coated with wax. When the wax
is dry, the leaf is removed and the indentations in the glaze are coated with a very thin layer of an
underfired glaze.



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