Ceramic Glazing Terms

The ability of porous materials to attract a liquid water into its air spaces.

Ceramic glazing terms.

In kiln construction high temperature insulating materials such as firebrick ceramic fiber etc. Bone dry the condition of clay when all the water has evaporated. Denver colorado ceramic artist annie chrietzberg is the polar opposite of me in the glaze room. Glaze terms glazes are the protective coatings that make ceramics safe and useful.

Glossary of ceramic terms 1. Without the fired surfaces the ware would not be able to hold water or be safe for food. Reduction firing with reduced oxygen in the kiln. Plaster or wooden form used to enable the movement of ware without handling.

The many types and textures of glazes that mayco offers are almost endless from bright shiny reds to soft pastels metallic gold to satiny rich black. A parting and contraction of the glaze on the surface of ceramic ware during drying or firing resulting in unglazed areas bordered by coalesced glaze. Bisque refers to pottery that has been fired once and remains unglazed. It also gives a tougher surface.

I know my glazing outcomes could be greatly improved if i followed just a couple of annie s pottery glazing tips. Any materials highly resistant to the effects of heat. Glaze is also used on stoneware and porcelain. For first time glazing dipping can be the easiest and most effective way as it tends to be the smoothest way of glazing.

Hopefully you will benefit from annie s advice too. Pug mill a machine for mixing clay and recycling clay. Glaze can serve to color decorate or waterproof an item. Jennifer poellot harnetty editor.

Ceramic glaze is an impervious layer or coating of a vitreous substance which has been fused to a ceramic body through firing. In the production of pottery this is useful for the application of glaze to bisque ware in preparation for the glaze firing. A glaze fault characterised by the cracking of fired glazes and due to high tensile stresses. The absorption rate of finished pieces after firing should be of concern to the consumer.

Casting a means of making multiples of the same form by pouring slip or pressing plastic clay into plaster or bisque molds. If you re glazing the insides of your pot then pouring is the best option. Rib a rubber metal or wooden tool used to facilitate wheel throwing of pottery forms. The clay is completely dry.

In clay and glaze chemistry the neutrals or stabilizers that are resistant to melting and that combine with the fluxes bases and glass formers acids. Glazing renders earthenware vessels suitable for holding liquids sealing the inherent porosity of unglazed biscuit earthenware. A refractory slab used to support ware during firing. Oftentimes caused by uneven glazing or three or more glaze coats.