Using Unity Formulae

Unit 7
This unit has 20 sections covering the following oxides:

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2.
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5.
6.
7.
8.
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10.
11.
12.
13.
14.
15.
16.
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18.
19.
20.


Limit formulae.
Using limit formuae in changing a glaze.
Assessing the maturing temperature of a glaze.
The alumina : silica ratio (Al2O3 : SiO2).
Lowering the maturing temperature of a glaze.
Adjusting fluxes to lower maturing temperature.
Using B2O3 to lower maturing temperature.

Controlling the opacity and texture of a glaze.
Clear glaze - unity formula indicators.
Opacity and texture - unity formula indicators.
Techniques for varying texture and opacity.
Using a blend to adjust opacity and texture.
The coefficient of expansion.
Calculating the coefficient of expansion.
The meaning of the term "Glaze Fit" - crazing.
The meaning of the term "Shelling".
The importance of glaze fit.
Using the coefficient of expansion.
Controlling crazing.
Using the unity formula to change glaze materials.

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