Common ceramic materials are clay, alumina, kaolin, etc. Ceramic materials generally have high hardness, but poor plasticity. In addition to being used in tableware and decoration, ceramics also play an important role in the development of science and technology. Ceramic raw materials are obtained from the earth’s original large amount of resource clay after quenching. The properties of clay are tough, it can be plasticized when exposed to water at room temperature, it can be carved when slightly dry, and it can be ground when fully dry; when it is fired to 700 degrees, it can be turned into pottery and can be filled with water; when it is fired to 1230 degrees, it becomes porcelain, which is almost completely non-absorbent and resistant to high temperature. corrosion. The flexibility of its usage has a variety of creative applications in today’s cultural technology. Pottery was invented. Ceramic materials are mostly oxides, nitrides, borides and carbides.
Pottery material: Compared with porcelain, the texture of pottery is relatively loose and the particles are coarser. The firing temperature is generally between 900°C and 1500°C. One of my favorite modeling materials. There are many types of pottery, the common ones are black pottery, white pottery, red pottery, gray pottery and yellow pottery, etc. Red pottery, gray pottery and black pottery are made of clay with higher iron content, and iron clay is red in an oxidizing atmosphere. , gray or black in reducing atmosphere.
Porcelain material: Compared with pottery, the texture of porcelain is hard, dense, strictly forbidden, resistant to high temperature, rich in glaze color, etc. The firing temperature is generally around 1300 ℃. Thin as paper”, porcelain often feels noble and gorgeous, which is the exact opposite of the simplicity of pottery. Therefore, when many artists create ceramic works of art, they will focus on highlighting the completely different sensory enjoyment brought by the texture of pottery or porcelain. Therefore, it is necessary to analyze and compare the characteristics of two different materials before creation.