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cone 10 glaze correction to last posting

updated sat 23 nov 02

 

John Britt on fri 22 nov 02


Hey Ivor,

I thought it might be simplier to use cone 4 as the comparison:
K2O 0.3, CaO 0.7, Al2O3 0.4, SiO2 4.0.

Because you don't have to remove any Iron.

Just from another perspective.

John Britt

John Britt on fri 22 nov 02


Ivor,

You are correct. My mistake. I thought the sequence began with Al2O3
0.4, SiO2 4.0. But I was mistaken. It is cone 4 - Al2O3 0.5, SiO2 4.0.
then cone 5 - Al2O3 0.5, SiO2 5.0, then cone 6 - Al2O3 0.6, SiO2 6.0, etc.

Sorry,

John Britt

>
>I thought it might be simplier to use cone 4 as the comparison:
>K2O 0.3, CaO 0.7, Al2O3 0.4, SiO2 4.0.
>
>Because you don't have to remove any Iron.
>
>Just from another perspective.
>
>John Britt
>
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