Llewellyn Kouba on mon 21 feb 05
I am interested in a series of glaze formulas by British author Margery
Clinton. How do I interpret Blythe Alkaline Frit 20126 or is there
something comparable to this in USA frits?
(72C87)
0.160 K20
0.720 Na20
0.110 Ca0
0.010 Mg0
0.550 Al203
4.560 Si02
0.980 B203
Llewellyn Kouba
--
http://www.assumptionabbey.com/Pottery/index.html
Llewellyn Kouba
ABBEY POTTERY
Stoneware, Porcelain, Terra Cotta, and
Native Clays.
Assumption Abbey, Richardton ND USA
Ron Roy on thu 24 feb 05
Hi Llewellyn,
What you have provided is the molecular unity formula for frit 20126 and
from that I have used calculation software to come up with an approximate
analysis for that frit.
K2O - 2.26
Na2O - 10.10
CaO - 1.57
MgO - 0.15
Al2O3 - 7.84
SiO2 - 64.21
B2O3 - 13.87
Total - 100.00
If there are other frits that are close you can use the above analysis to
find them - or use the analysis to enter that frit into a materials
definition table and thereby calculate new recipes for those glazes using
other frits and materials.
I have looked at the analysis of the frits I commonly use and none are
useable. Look for frits with low CaO and MgO.
Hope this helps - RR
>I am interested in a series of glaze formulas by British author Margery
>Clinton. How do I interpret Blythe Alkaline Frit 20126 or is there
>something comparable to this in USA frits?
>(72C87)
>
>0.160 K20
>0.720 Na20
>0.110 Ca0
>0.010 Mg0
>0.550 Al203
>4.560 Si02
>0.980 B203
>
>Llewellyn Kouba
>
>--
>http://www.assumptionabbey.com/Pottery/index.html
>
>Llewellyn Kouba
>ABBEY POTTERY
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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