Ceramics main ingredient

Ceramic materials, including kaolin, clay, Cidan, porcelain clay, coloring agent, blue and white material, lime glaze, lime and other alkaline glaze. Kaolin ceramic materials, is a major component of the kaolinite clay. First of all because of Jingdezhen in Jiangxi Province in northeast China found that the high Village named. It's chemistry experiment-to: Al203 2Si02 2H20, followed by the percentage of weight: 39.50%, 46.54%, 13.96%. Pure kaolin or dense pine for the massive dredging, the appearance of a white, light grey. Contaminated by other impurities, was Heihe, pink, yellow rice, with Huani flu, easy Yong Shounie into powder, white color after calcination, Naihuo Du, is a fine Zhici raw materials. Clay ceramic material is a water-cut aluminum silicate minerals, from long-rock category after a long-term role of weathering and geological formation. It is a variety of micro-mineral mix, the main chemical composition of silica, alumina and crystal water, while containing a small amount of alkali metal, alkaline earth metal oxides, such as oxides and coloring. Clay has a unique combination of plasticity and its water swelling can pinch-run Liancheng will, and create the required shape, after the roast has become hard dense. This performance, constitute the basis of ceramics produced by the process. Clay is the basis of ceramics production of raw materials, widely distributed in nature, reserves, variety, is a valuable natural resources.

Cidan also produced porcelain of raw materials, is a by quartz, sericite composition, and a number of feldspar, kaolin, such as the rock-like mineral. A dense block, look for white, gray, yellow and white, gray and green, and some were shiny glass, and some were Tuzhuang shiny, section Changcheng Beike Zhuang, no texture. Cidan itself contains a variety of ceramic components and have Zhici process and firing the required performance. China's very early to make use of Cidan porcelain, in particular, Jiangxi, Hunan, Fujian and other places in the production of traditional Xici, as the main raw materials are Cidan.

Porcelain clay from kaolin, feldspar, quartz and other components, mainly composed of silica and alumina, and contains a small amount of iron oxide, titanium dioxide and calcium oxide, magnesium, potassium and sodium, such as oxidation. The plasticity and it can combine both high performance, high Naihuo Du, is being widely used Zhici raw materials.

Coloring agent in the presence of fetal ceramic, enamel, from the color role. Ceramics are common coloring agent of iron oxide, copper oxide, cobalt oxide, manganese oxide, titanium dioxide, respectively, showed the red, green, blue, purple, yellow and other colors.

Liu Qinghua Ci is blue and white drawing of decoration materials, cobalt soil minerals. China's relatively rich blue and white material reserves, the Leping in Jiangxi Province, on high, Shangrao, Fengcheng, Ganzhou, the Jiangshan, Zhejiang, Yunnan's Yi Liang, Huize, Yung-feng, Ho, Song Ming, as well as Guangxi, Guangdong, Fujian and other places are A soil cobalt ore deposits. Ancient China's Qinghua Ci part of the blue and white material from abroad, most are domestic. Materials are imported from the Tsing Ma Su, Huiqing, a material commonly used in Chinese stone Green, equality Green, Zhejiang expected, Chu-ming Liu, and so on.

Lime glaze is the main material of calcium oxide (Cao), help from melting, characterized by a high-temperature viscosity small, easy-glaze, glazed glass texture strong, transparent, generally thin enamel layer, glazed sheen strong, clearly Characterization and decoration, most of the Southern Song Dynasty porcelain before using lime glaze.

Alkaline lime glaze major components for help melt potassium and calcium oxide material (K2o), sodium oxide (Na20), and other basic metal oxide. Viscosity is characterized by high temperature, difficult-glaze, Shi thick glaze. In high-temperature baking process, the glaze in the air can not emerged glazed in the glaze in the formation of many small bubbles, the remaining glaze in a certain number of undissolved particles of quartz, and a large number of anorthite crystallization. These small bubbles, particles of quartz and feldspar crystallization of calcium to enter the enamel layer in the light scattering, making the glaze becomes opaque and opaque layer, creating a Wenrunruyu visual effects. Alkaline lime glaze of the invention and use of traditional celadon of the tremendous progress. Alkaline lime glaze seen in the Northern Song Dynasty in Ruyao Qing porcelain. Longquan the Southern Song Dynasty porcelain kiln used a lot of lime alkaline glaze, glaze emerged as Qingyu like texture, such as powder blue, green plums. It can be said that the Southern Song Dynasty Longquan celadon ceramic history of China has reached single-Seyou's peak.