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The
Glass Triangle |
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1.
2.
3.
4.
5.
6.
7.
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Introduction
Schematic model.
Making clear glass.
Imbalanced constituents.
Excessive flux.
Excessive amphoteric.
Excessive acid.
Temperature influence. |
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Focus
on Raw Materials |
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11..
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Introduction
What is a glaze
recipe?
Know your materials.
Manipulating
recipes.
Changing the maturing
temperature.
How to change temperature.
Increasing flux.
Lowering amphoteric
& acid.
Determining qualities.
Using a line blend.
Using a triaxial
blend
Changes for texture. |
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The
Unity Formula |
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
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Introduction
What is a unity formua?
Who was Seger?
Unity formula format.
Molecular ratios.
Unifying a formula.
Glaze / clay unity.
Fractions of molecules?
Advantages of unity formulae.
Are glazes the same?
Usefulness of unity formulae.
Recipe to formula calculations.
Raw materia data.
Determining unity.
Formua to recipe calculations. |
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Interpreting
Unity Formulae |
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
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Introduction
How to interpret unity.
Other factors.
Information needed.
Limit formulae.
Value of limit formulae.
Uses for limit formulae.
The Al:Si ratio.
Significance of the Al:Si
ratio.
Coefficients of expansion.
Interpreting coefficients
of expansion.
Using coefficients of
expansion.
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Oxide
Qualities |
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
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Introduction
Sodium Oxide - Na2O
Potassium Oxide - K2O
Potassium + Sodium Oxides
- KNO
Calcium Oxide - CaO
Magnesium Oxide - MgO
Barium Oxide - BaO
Zinc Oxide - ZnO
Lead Oxide - PbO
Lithium Oxide - Li2O
Strontium Oxide - SrO
Aluminium Oxide - Al2O3
Phosphorus Pentoxide -
P2O5
Boron - B2O3
Silica - SiO2
Titanium Dioxide - TiO2
Zirconium Dioxide - ZrO2
Tin Oxide - SnO2 |
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Using
Unity Formulae |
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
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Introduction
What are unity formulae?
Using limit formulae.
Determining maturing temperature.
What is the alumina:silica
ratio?
Changing maturing temperature.
Altering fluxes for temperature
change.
Using B2O3 to lower temperature.
Controlling texture and
opacity.
Clear glaze indicators.
Indicators of opacity
and texture.
Achieving texture
change.
Using blends for texture
change.
What is the coefficient
of expansion?
Calculating the coefficient
of expansion.
What is glaze fit?
Clay / glaze coefficient
Importance of glaze fit.
Using the coefficient
of expansion.
Controlling crazing.
Changing raw materials. |
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