What is an oxide glaze?
OXIDE PAINTING refers to a technique of glazing in which metallic oxide washes are painted on top of an unfired glaze to achieve color changes and create patterns. Usually, an opaque white glaze is used, however, almost any glaze can be successfully employed.
What is an oxide wash in pottery?
Oxide Wash – Washes are metallic glaze colorants which are formulated for ease of use and versatility. Ceramic oxide washes produce earthy yet vibrant enhancements to any ceramic piece.
What is refractory oxide?
The term refractory refers to materials that are resistant to the effects of heat. Refractory oxides, therefore, are ceramic materials that can be used at elevated temperatures. These nondescript restrictions allow nearly any oxide to be classified as refractory.
How do you use oxide glazes?
TOP 10 WAYS TO DECORATE WITH OXIDES
- Brush oxides on greenware, bisque and/or glaze.
- Make some slip and add some oxides to create colors.
- Brush oxide wash over an unfired glaze, then fire.
- Brush oxides on, then apply glaze.
- Mix ball clay with your oxide/water.
- Brush a couple different oxides on, overlapping in areas.
What is the difference between a glaze and an oxide?
Although raw oxides are basic elements, they do contribute different properties to glazes. For example, oxides can determine how tough a fired glaze is, or how much it shrinks or expands during firing. As well as affecting the color of a fired glaze they can determine whether it is matte or glossy.
What are oxides for clay?
Metal oxides are used in ceramics to produce color and effect
- COBALT OXIDE – Cobalt (II,III) Oxide Cobalt Ceramic Pigments and Stains.
- Manganese Dioxide – Advantages of using in Pottery.
- Potassium chromate – K2CrO4.
What is refractory waste?
Integrated valorization of refractory waste under a “5R” approach. Refractories are ceramic materials used to protect equipment in industries working at high temperatures. They contain compounds like aluminium silicates, magnesium, dolomite, chromite, zirconium, carbides, nitrides and oxides.
What are oxides used for in pottery?
Oxides are used in pottery and ceramics for a number of reasons. They can be used as fluxes, glass formers, and colorants. Fluxes lower the temperature at which a ceramic body melts when fired. Some examples of fluxing oxides are lead, sodium or zinc.