Alisa Liskin Clausen on sat 16 nov 02
Glaze test for oxides under Tony Hansen's Matt, cone 6, ox.
Glaze tested on white midrange stoneware fired in electric oxidation to =
1220c.
Source:=20
Credited to: Tony Hansen
Firing ramp:
100c p/h to 600c (212f - 1112f)
150c p/h to 1100c (330f - 2012f)=20
100c p/h to 1220c (212f - 2228f)
cool down max. per hour to 1100c=20
cool 80c per hour to 800c
shut off kiln
Recipe:
27 Wollastonite
36 Frit 3134
35 EPK
5 Flint
Note: All raw materials are measured up or down to the nearest whole =
decimal. =20
Colorants or additives to a 100 gram test batch are measured in percent =
to the 100 gram test batch.
Substitutions:
Local frit for 3134
Results:
Oxides Cobalt, RIO, black stain, Chrome and Ocher all showed through =
glaze. Slight movement of edges, except for black stain.
Chrome looks brown.
Glaze crazed on my clay body.
Regards from Alisa in Denmark
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