Dannon Rhudy on thu 20 sep 07
Mel said:
bob anderson just did an entire set of dishes using
> mel's rhodes/mel's orange in combination.
> it flashes rutile blue.
Mel's Orange, over a couple of iron bearing
glazes (and/or fired in salt) makes a gorgeous
rutile blue type glaze. I have a tea bowl that was
salt fired with Mel's Orange that is remarkable,
with a rutile blue glaze edged all around with
a brilliant orange. A happy accident indeed.
Fired in salt the orange runs, but I just keep it at the
top third, and salt takes care of the rest.
regards
Dannon Rhudy
mel jacobson on thu 20 sep 07
i just can't find that perfect picture of my/bob anderson's
rutile blue. it is so damn nice.
bob anderson just did an entire set of dishes using
mel's rhodes/mel's orange in combination.
it flashes rutile blue. he has made this his signature glaze.
i just cannot remember his website address, but he has
a wonderful platter in that glaze.
i will find the address and post it for those interested.
mel
from: mel/minnetonka.mn.usa
website: http://www.visi.com/~melpots/
Clayart page link: http://www.visi.com/~melpots/clayart.html
Ivor and Olive Lewis on fri 21 sep 07
Dear Mel,
The point about getting a good mature glaze is to ensure all of the =
ingredients of a recipe are taken into solution. Some of our ingredients =
have low melting points and the ability to dissolve other ingredients to =
make a vitreous solution. A good glaze at its maturity temperature would =
pass through a proverbial refractory filter paper without leaving any =
residue behind.
Some glaze ingredients are highly refractory but are able to dissolve in =
a good molten solvent. The CaO, MgO group do this. So does Quartz and =
clay. But Titanium Dioxide seems reluctant to dissolve. In cases where =
it does then it can form part of a new compound.
It would seem to me that if Rutile is to act as a nucleating agent in a =
glaze that has to throw crystals then it must be prevented from =
dissolving in a vitreous melt.
Best regards,
Ivor
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