? Porcelain refers to porcelain made in China. China? China is the same word in English. China is the hometown of porcelain, which is an important creation of ancient working people. The predecessor of porcelain is primitive celadon, which is the product of the transition from pottery to porcelain. The earliest primitive celadon in China was found in Fenglongshan Cultural Site in Dongxia County, Shanxi Province, about 4200 years ago. There are pots and bowls. Primitive celadon is widely distributed in China, found in the middle and lower reaches of the Yellow River, the Yangtze River and South China.

? Porcelain type: 1. Celadon, also known as celadon, is the earliest glazed colored iron oxide porcelain, which is most famous in Longquan kiln in Song Dynasty. Two: Black porcelain, also called Tianmu porcelain, is made by adding iron to celadon. The famous kilns are Yao Jian Kiln and Deqing Kiln. Three: white porcelain, which forms transparent glaze because of its low iron content, is most famous in Ding kiln and Xing kiln. The appearance of white porcelain makes it possible to paint on porcelain, thus laying the foundation for the development of colored porcelain. Four. Blue and white porcelain is also called shadow green, hidden green, reflective green and shadow green.

The glaze color is between blue and white, with white in blue and blue in white, which is like ice and jade. Five: colored glazed porcelain refers to a kind of colored glazed porcelain, which is fired in a closed state. Due to the different contents of iron oxide and copper oxide, the firing temperature is different and the glaze color is different. Glaze porcelain includes red glaze, sauce glaze, blue glaze, yellow glaze, blue glaze and purple glaze. Six: painted porcelain won not the glaze color, but the shape, painting and color. The development of colored porcelain began with blue and white, that is, decorative patterns appeared on or under the glaze, and blue and white, two colors, three colors, five colors, fighting colors, pastels, bronze colors and golden colors appeared. Among them, blue and white are generally underglaze colors, tricolor and multicolor are generally underglaze colors, and tube colors are underglaze blue and white and underglaze colors.

Characteristics of porcelain: It can be divided into three categories: hard porcelain, soft porcelain and special porcelain. The porcelain produced in China is mainly hard porcelain. Hard porcelain, with low melting point and high firing temperature, is white, hard and translucent above 1360, with good strength, high chemical stability and thermal stability. It is also a poor conductor, such as electric porcelain, high-grade tableware porcelain, chemical porcelain, ordinary daily-use porcelain, etc. It can also be called feldspar glazed porcelain. The difference between soft porcelain and hard porcelain is that there are many fluxes in the green body and the firing temperature is lower than 1300, so its chemical stability, mechanical strength and dielectric strength are low. Soft porcelain is not a general industrial porcelain, which is characterized by high translucency. There are many artistic porcelain, sanitary porcelain, ceramic tiles and various decorative porcelain. Such as ashes porcelain and frit porcelain. There are many kinds of special porcelain, most of which are oxides, such as high alumina porcelain, mainly alumina, magnesia porcelain and magnesia; Talc porcelain, mainly talc; Beryllium porcelain, mainly beryllium oxide or beryl; Zirconium porcelain, mainly zirconia; Titanium porcelain, mainly titanium oxide.