[Clayart] role of P2O5 in ceramic glaze

Hank Murrow hmurrow at efn.org
Fri Jan 17 10:25:22 EST 2020

Dear Paul;

Since 1958 in my first ceramics class at the U of oregon, i learned to do the glaze calculations with a slide rule, and found that considering materials in that way useful. Since the development of calculation programs, it has gotten easier and more informative.

Since I added the Currie Grid Tile regime to my inquiry, I find all sorts of glaze I never would have considered before. Both calculation and grid tiles are great tools, especially in the absence of analysis. YMMV of course!

Cheers, Hank in Eugene

> On Jan 16, 2020, at 1:29 PM, paul gerhold <gerholdclay at gmail.com> wrote:
> This may  heresy but isn’t the empirical just pseudo science useful perhaps to functional potters but basically meaningless in terms of actually understanding what goes on in the glaze melt and glaze cooling and final structure of the glaze. 
> Sent from my iPad

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