Ceramic is rough, should not be high temperature, porcelain is smooth, there is a high temperature, this statement is correct?
Yes, but not just such a difference, there are differences related to: pottery and porcelain is as follows: first, the sintering temperature of different pottery firing temperature is generally lower than the lowest porcelain, even up to 800 DEG C, up to 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, different degree of hard pottery 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. Three, the use of different raw materials, pottery using ordinary clay can be made into a billet firing, porcelain needs to select a specific material to kaolin on the billet. 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 different, the body of pottery, even thinner, does not have translucent features. For example, Longshan culture pottery, as thin as eggshell, but not transparent. China has the characteristics of both the matrix thick, translucent. Five, glaze different, pottery has no hanging glaze and hanging glaze two kinds, hanging glaze pottery glaze at lower burning temperature can melt. 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.
The main differences between pottery and porcelain are as follows: first, the firing temperature is different, pottery firing temperature is generally lower than porcelain, the minimum even reach 800 degrees Celsius, the highest can be 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, different degree of hard pottery 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. Three, the use of different raw materials, pottery using ordinary clay can be made into a billet firing, porcelain needs to select a specific material to kaolin on the billet. 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 different, the body of pottery, even thinner, does not have translucent features. For example, Longshan culture pottery, as thin as eggshell, but not transparent. China has the characteristics of both the matrix thick, translucent. Five, glaze different, pottery has no hanging glaze and hanging glaze two kinds, hanging glaze pottery glaze at lower burning temperature can melt. 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.
The difference between pottery and porcelain is not that there is no glaze glaze, glaze pottery can have, such as the Han Dynasty glazed enamel (commonly known as: Han and Tang Dynasty colorful glass glaze) (commonly known as: pottery and so on). Porcelain can also be unglazed, such as a white porcelain tire, and because of its fine white texture, no one will regard it as a pottery. In fact, during the period from Shang Dynasty to the Warring States period, the so-called "hard pottery" produced by porcelain stone in southern China had reached the level of porcelain, and the sound of percussion should be in the category of primitive porcelain.The difference between pottery and porcelain is that the use of materials; two firing temperature, the two are indispensable. You can use a variety of pottery clay minerals including clay, production, low sintering temperature, in between 700 and 1000 C, the basic matrix sintering, no water decomposition, but the porosity and water absorption rate is higher. Under the microscope observation of the matrix, there is very little glass phase mullite crystals, in other words, there is no porcelain, knock sound is more boring. While the use of alumina porcelain with high content of clay or kaolin firing. The firing temperature of the porcelain is at least above 1100 DEG C, and the tire is basically vitrified. A large amount of mullite crystals exist, the porosity and water absorption are low, and the sound of knocking is crisp.
