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: lithium glaze

updated sun 28 dec 03

 

Ababi on sat 27 dec 03


-----Original Message-----
From: Ababi [mailto:ababisha@shoval.org.il]=20
Sent: Saturday, December 27, 2003 5:47 PM
To: Ceramic Arts Discussion List
Subject: Re: Lithium glaze

Hello Christie
The big advantage of living away from the USA:-( is that "names" are
just names therefore if I see a glaze named " Adrian Arleo's stoney
lithium ^06" I would not hesitate to tell you what I think about, no
doubt: Adrian will not teach me in any workshop!

It is a very bad glaze!.=20
If it ment to be white why so much lithium?=20

ADRIAN ARLEO'S STONEY LITHIUM =20
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Cone 06 999 deg.C. - =09
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Lithium Carbonate 15.60
EPK Kaolin 22.00
Flint 45.00
Bentonite 3.70
frit 3110 13.70
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Seger Weight%
KNO 0.154 3.19% should be much more
CaO 0.059 1.03%
MgO 0.009 0.11%
Li2O 0.779 7.25% The main flux too much lowers the expansion
bellow the "red line" not to say the poisonous.
Al2O3 0.347 11.02% too high for ^06
B2O3 0.019 0.41%
SiO2 4.114 76.99% much too high
K2O 0.023 0.66%
Na2O 0.131 2.53%
Al:Si 11.84=09
Expan. 5.36 Too low! (because of the lithium. DUNTING!=20
ST 366.08=09
=20
If you are looking for a stony white for ^06 try a ^6 clear glaze it
might do the same without the need of so much lithium!
If you want it to response better to copper oxide try this way:
The numbers are simple because it has to be a stony glaze. You can use
it as it is or add the copper.
Please write me the results and we shall see if I will have to improve
or adjust it.
WAS NOT TESTED THIS WAY!
ABABI'SSTRONTIUM BASE FOR CHRIST
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Cone 06 999 deg.C. - =09
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

frit 3124 40.00
frit 3110 20.00
EPK Kaolin 20.00
strontium carbonate 20.00
copper oxide 3.00
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Seger Weight%
KNO 0.275 6.98%
CaO 0.345 7.61%
SrO 0.380 15.45%
Al2O3 0.337 13.48%
B2O3 0.242 6.61%
SiO2 2.113 49.87%
K2O 0.022 0.81%
Na2O 0.253 6.17%
Al:Si 6.27=09
Expan. 8.83=09
ST 365.66=09
Ababi Sharon
Glaze addict
Kibbutz Shoval=A0 Israel
ababisha@shoval.org.il
http://ababi.active.co.il=20
http://www.matrix2000.co.nz/Matrix%20Demo/Ababi.htm


I've just done some test tiles using a lithium glaze:
Adrian Arleo's stoney lithium ^06

Lithium carbonate 15.6
EPK 22.
Flint 45.
bentonite 3.7
Frit 3110 13.7

I had seen lithium glazes described as "dry" glazes but assumed that
referred to the appearance of the end result and mixed the actual glaze
to roughly the consistancy of cream and dipped each tile three times.
The results, while interesting, sort of, were not what I expected. I had
hoped for some dimensionality, i dunno, cragginess like some pix I'd
seen. Mine lay there like a lox. Oxides were near invisable, need an
opacifier or over white slip.. But...I can see this surface, whicjh is a
little like 400 grit sandpaper, could do very well on sculpture. This
is more musing than a question.=20
You can chew up an awful lot of time testing glazes........


Christie Lucero
snowlion fine Arts
Coyote Creek, NM