Where is the difference between ceramics and ceramics?
Five glaze differentPottery has two kinds of glazes without glaze and glaze. Glazed glazes can be melted at lower firing temperature. There are two kinds of glazes in China, which can be burnt once in a high temperature with the carcass, and also in low temperature and high temperature, and then hung with low temperature glaze, second times low temperature.In the above several aspects, the most important condition is the raw material and the firing temperature, several other conditions are closely related with these two. Therefore, once the master of pottery mastered the technique of burning temperature and realized the difference between kaolin and general clay, he would have the condition to invent porcelain.
Three, the use of raw materials are differentPottery can be made from ordinary clay and fired, and porcelain needs to be made of a specific material, made from kaolin. The firing temperature needed in pottery, can become like ancient pottery, white pottery is burnt. The clay made of kaolin at the temperature required for firing porcelain becomes porcelain. But the clay made of clay, usually made of pottery, can not be porcelain when it is fired to 1200 degrees centigrade. It will be burned into glass.Four, transparency is differentThe green body of a pottery is not translucent even though it is relatively thin. For example, Longshan culture pottery, as thin as eggshell, but not transparent. China has the characteristics of both the matrix thick, translucent.
The difference between pottery and porcelain is mainly as follows:First, the burning temperature is differentPottery firing temperature is generally lower than porcelain, minimum even below 800 degrees Celsius, up to about 1100 degrees celsius. Porcelain firing temperature is relatively high, mostly at more than 1200 degrees Celsius, and even some to about 1400 degrees celsius.Two, hardness is differentPottery firing temperature is low, the body is not completely sintering, struck a voice asked, hardness is poor, and some can even draw with knife grooves. The porcelain firing temperature is high, the basic matrix sintering, when knock sound is ringing, it is difficult to draw the carcass surface grooves with general steel.
