John Forstall on mon 21 may 01
Anybody out there know what a micro-chrystalline glaze is? Does anyone know
of resource book, recipe, formula, web-site, whatever.
Thanks,
John
(John Forstall, Pensacola, FL.)
Hank Murrow on tue 22 may 01
>Anybody out there know what a micro-chrystalline glaze is? Does anyone know
>of resource book, recipe, formula, web-site, whatever.
>Thanks,
>John
>(John Forstall, Pensacola, FL.)
>
Dear John;
A microcrystalline glaze is one in which there are more network
modifiers(fluxes and/or alumina) than can form a glass with the network
formers(Silica, boron, titania, and phosphorus); thus precipitating at the
surface of the glaze to form a microcrystalline network which often
displaying startlingly different colors than those in a more normal melt.
For instance, I have acheived copper yellows @ C/10 OX. with such a glaze.
A good place to start is Ian Currie's book, "Revealing Glazes",
available in a week's time from his website:
Copies of the book "Revealing Glazes - Using the Grid Method" and
also "Stoneware Glazes - A Systematic Approach" can be purchased by
credit card via the author's website:
http://ian.currie.to/
Hank's Copper Yellow is among several microcrystalline glazes in
this volume, and the book details a wonderfully quick & complete way to
find the microcrystalline zones within any flux combination.
Good Hunting! Hank in Eugene
David Eickholt on thu 24 may 01
Try book by Diane Creber, called CRYSTALLINE GLAZES, Amazon or Barnes and
Noble should have it, Dave
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