Glaze chemistry is the study of how the oxide chemistry of glazes relates to the way they fire. It accounts for color, surface, hardness, texturem, melting temperature, thermal expansion, etc.
In ceramics, the chemistry of a glazes are expressed as formulas of oxides. There are direct links between the oxide chemistry and the fired physical properties.
In glaze chemistry, the oxide is the basic unit of formulas and analyses. Knowledge of what materials supply an oxide and of how it affects the fired glass or glaze is a key to control.
|Oxides||Na2O - Sodium Oxide, Soda|
|Oxides||MgO - Magnesium Oxide, Magnesia|
|Oxides||SrO - Strontium Oxide, Strontia|
|Oxides||ZrO - Zirconium Oxide, Zirconia|
|Oxides||MnO - Manganous Oxide|
|Oxides||MnO2 - Manganese Dioxide|
|Oxides||V2O5 - Vanadium Pentoxide|
|Oxides||CrO3 - Chromium Trioxide|
|Oxides||Fe2O3 - Iron Oxide, Ferric Oxide|
|Oxides||FeO - Ferrous Oxide|
|Oxides||NiO - Nickel Oxide|
|Oxides||SnO2 - Tin Oxide, Stannic Oxide|
|Oxides||ZnO - Zinc Oxide|
|Oxides||PbO - Lead Oxide|
|Oxides||KNaO - Potassium/Sodium Oxides|
|Oxides||Li2O - Lithium Oxide, Lithia|
|Oxides||ZrO2 - Zirconium Dioxide|
|Oxides||Al2O3 - Aluminum Oxide, Alumina|
|Oxides||B2O3 - Boric Oxide|
|Oxides||BaO - Barium Oxide, Baria|
|Oxides||Bi2O3 - Bismuth Oxide|
|Oxides||CaO - Calcium Oxide, Calcia|
|Oxides||CoO - Cobalt Oxide|
|Oxides||Cr2O3 - Chrome Oxide|
|Oxides||Cu2O - Cuprous Oxide|
|Oxides||CuO - Cupric Oxide|
|Oxides||SiO2 - Silicon Dioxide, Silica|
|Oxides||TiO2 - Titanium Dioxide, Titania|
|Articles||Glaze Chemistry Basics - Formula, Analysis, Mole%, Unity, LOI
Part of changing your viewpoint of glazes, from a collection of materials to a collection of oxides, is learning what a formula and analysis are, how conversion between the two is done and how unity and LOI impact this.
|Articles||Understanding Ceramic Oxides
Fired glazes are composed of oxide building blocks. Each of the oxides contributes different properties to the fired glaze and interacts with others in different ways. Understanding these gives you control.
|Articles||Changing Our View of Glazes
A big secret to getting control of glazes is to begin looking at them as formulas of oxides rather than recipes of materials.