Search results
Results from the WOW.Com Content Network
Grog, also known as firesand and chamotte, is a raw material usually made from crushed and ground potsherds, reintroduced into crude clay to temper it before making ceramic ware. It has a high percentage of silica and alumina. It is normally available as a powder or chippings, and is an important ingredient in Coade stone.
Ceramic material is an inorganic, metallic oxide, nitride, or carbide material. Some elements, such as carbon or silicon, may be considered ceramics. Ceramic materials are brittle, hard, strong in compression, and weak in shearing and tension. They withstand the chemical erosion that occurs in other materials subjected to acidic or caustic ...
[4] [5] [6] Clay is the longest-known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery . Some of the earliest pottery shards have been dated to around 14,000 BCE, [ 7 ] and clay tablets were the first known writing medium. [ 8 ]
Porcelain dish, Chinese Qing, 1644–1911, Hard-paste decorated in underglaze cobalt blue V&A Museum no. 491-1931 [1] Victoria and Albert Museum, London. Hard-paste porcelain, sometimes called "true porcelain", is a ceramic material that was originally made from a compound of the feldspathic rock petuntse and kaolin fired at a very high temperature, usually around 1400 °C.
Clay is a very fine-grained geologic material that develops plasticity when wet, but becomes hard, brittle and non–plastic upon drying or firing. [2] [3] [4] It is a very common material, [5] and is the oldest known ceramic. Prehistoric humans discovered the useful properties of clay and used it for making pottery. [6]
Ceramic building material; Ceramic colorants; Ceramic decal; Ceramic engineering; Ceramic flux; Ceramic foam; Ceramic forming techniques; Ceramic matrix composite; Ceramic molding; Ceramic nanoparticle; Ceramic-impregnated fabric; Cerium hexaboride; Chemical vapor infiltration; Chinese Ceramic Society; Coade stone; Cobalt ferrite; Compaction of ...
One of the earliest examples of artificial stone was Coade stone (originally called Lithodipyra), a ceramic created by Eleanor Coade (1733–1821), and produced from 1769 to 1833. Later, in 1844, Frederick Ransome created a Patent Siliceous Stone, which comprised sand and powdered flint in an alkaline solution. [ 1 ]
Other ancient Amazonian ceramic traditions, Mina and Uruá-Tucumã featured shell- and sand-tempered pottery, that was occasionally painted red. [81] Around 1000 CE, dramatic new ceramic styles emerged throughout Amazonia. Amazonian ceramics are geometric and linear in decoration. Polychrome pottery typically features red and black on white slips.