What are the characteristics of ceramics?

Ceramic materials generally have high hardness, but poor plasticity. Besides the use of utensils and decorations, it also plays an important role in the development of science and technology.

Ceramic raw materials are the earth's original resources, clay, which is quenched. Clay is tough, plastic when it meets water at room temperature, slightly dry and grindable; Fired to 700 degrees, pottery can hold water; It will be porcelain when it is burned to 1230 degrees, and it will not absorb water at all, and it is resistant to high temperature and corrosion. In today's culture and technology, its flexibility of use still has various creative applications. The biggest characteristics of ceramics are high strength, brittleness and oxidation resistance. For example, the weather resistance of ceramic engines is obvious to all. For example, many containers containing strong acid and alkali, the shield of the space shuttle can not withstand this temperature. "They are all ceramics. And excellent electromechanical properties, such as ceramic arc extinguishing cover, semiconductor original device, mobile phone battery. In a word, the performance of ceramic materials is various, and its prospect is limitless.