leaf
The pursuit of leaf prints.
This print is lovely, with lighting that is just so. The background glaze is
a full gloss with the reflective
There are two leaves, with distinct leaf washes, which don't appear different.
I show this plate with two lighting configurations, the first avoids the
glare of the background glaze.
This firing profile is another of those obscurely weird profiles; "what if" in
which I indulge, so again,
ideal view - minimal glare and a detailed view of leaf veins
generic view
plate is ~ 8 inches in diameter.
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 2250 deg F with a hold of 2 hr at 2250 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
K2O 0.13
Al2O3 0.97
SiO2 3.55
molecular percent Silica 62.5%
K2O 0.72
Al2O3 1.03
SiO2 7.06
molecular percent Silica 41.9%
K2O 0.22
Al2O3 1.03
SiO2 4.55
molecular percent Silica 37.23%
Two leaves are softened by soaking in water laced with water softener. After
the pot is glazed, each leaf is pressed
The matrix glaze was applied substantially thinner than in previous recent
work. Additionally, the leaf was
This firing profile differs from my more usual firing profiles and was chosen
to accommodate other glazes tested.
Leaf prints require a subdued background glaze.
properties of a mirror. The result, in
most lighting arrangements, one sees only a semimatte leaf pattern
embossed on a reflective surface.
a matrix glaze that I was confident would be
unaffected. This firing was designed for other other tests.
Images of the plate with glaze longquan-iron-shino-Z38-h and leaves.
oxidation firing to a hot cone 10 in an electric kiln
Firing profiles
Up Fire profile
Down Fire Profile
Clay body is a crystal springs porcelain from Georgies in Portland.
glaze composition
Empirical Formula longquan-iron-shino-Z38-h :
Na2O 0.43
Li2O 0.20
CaO 0.19
MgO 0.05
Fe2O3 0.15
Empirical Formulae of leaf wash glaze leaf_Z35_1:
Na2O 0.21
CaO 0.06
MgO 0.01
TiO2 7.75
Empirical Formulae of leaf wash glaze leaf_Z35_2:
Na2O 0.71
CaO 0.06
MgO 0.01
TiO2 5.64
into the glaze. When the glaze
dries, a swatch of plate including the leaves are coated with wax. When the wax
is dry, the leaves are removed and the indentations in the glaze are coated
with a very thin layer of an
underfired glazes, respecitvely leaf_Z35_1
and leaf_Z35_2.
pressed into the glaze earlier in the
process, and more aggressively.
I have several glazes which require
an extended period of time near the peak temperature. In an earlier firing I
tested
a long hold near but below the peak temperature.
That was a hold on the way down.
This firing has a long hold
below the peak temperature, but before it is reached, on the way up.