> Earthenware is the most porous of the three main types of ceramic ware, having a porosity of more than 5% after firing Most of the clays used to make earthenware are only suitable for firing to a relatively low temperature, between 800-1100oC After firing the ceramics are permeable, and vessels are therefore frequently glazed The most common glazes used on Chinese earthenwares are lead-fluxed glazes In China, earthenwares are designated tao to differentiate them from high-fired wares such as stoneware or porcelain
bodies fired at temperatures below cone 1 (2110oF) that remain somewhat porous and open in structure The vast majority of the world's pottery has been earthenware because of the wide prevalence of earthenware clays and the relative ease of reaching the necessary kiln temperature Two examples are terra cotta and whiteware (sometimes referred to as talc body)
- porous ceramic material fired to only about 800°C (1500°F); sometimes made impervious to liquids by the addition of a lead glaze, as in Hafner ware and folk pottery; see stoneware
clays are formed by the weathering of local rock formations but some are glacial in origin They are usually red or tan in color Earthenware clays are primarily used in the manufacturing of bricks and industrial tiles since a fairly strong bond is formed at moderate temperatures (below 2000 degrees F)
A clay fired at low temperatures (cone 010-02) where it does not develop maturity (vitrify) Earthenwares are porous and therefore not as strong as stonewares and porcelains (sintering is the primary particle bonding mechanism) Earthenware glazes are usually very bright colored and if the glazes are properly fitted, earthenware can be quite strong and functional Terra Cotta is a special type of earthenware where red burning clay is used
Earthenware objects are referred to as earthenware. colourful Italian china and earthenware. = terracotta. an earthenware pot, bowl etc is made of very hard baked clay. Pottery that has been fired at low heat and is slightly more porous and coarser than stoneware and porcelain. For practical and decorative purposes, it is usually glazed. The earliest known pottery, a soft earthenware excavated at a Neolithic settlement in Turkey, is thought to be about 9,000 years old. Earthenware is still widely used for cooking, freezing, and serving. See also creamware
a type of clayware fired at comparatively low temperatures producing a heavy porous body that is opaque, not as strong as china, and lacking that product's resonance Because earthenware dinnerware is in the low- and medium-price brackets and lends itself to a variety of decorative styles and methods, it is well suited for everyday use
A type of claybody usually associated with low-fired ceramics Earthenware tends to be more porous than higher fired clays The relatively low physical hardness of both the clay and the glaze tend to make earthenware less durable then higher fired claybodies and less appropriate a choice for functional pieces See also stoneware, porcelain