Materials can be divided into metal materials and non-metal materials. Non-metal materials are divided into inorganic materials and organic materials.
Regardless of the type of material, its properties, such as melting point, hardness, and electrical conductivity, depend primarily on the internal microstructure. That is, on the bonding and bonding of the internal particles.
Organic materials rely on weaker molecular binding forces. Therefore, the melting point is low and the hardness is low.
Metal materials are bonded by metal bonds. Its binding force is stronger than that of molecular bonds, but it is weaker than covalent bonds and ion bonds. Therefore, the melting point and hardness are still not high.
Cemented carbides use metals to connect hard phases such as WC. Their properties lie between the metal and the ceramic.
Ceramic materials are mainly ionic and covalent bonds. Their binding force is relatively strong positive and negative ions between the electrostatic force or shared electron pairs. Therefore, high melting point, high hardness, good insulation, chemical stability and oxidation resistance . This is why ceramic materials can become cutting tools.
Traditional ceramic materials are generally taken from the natural world, such as Jingdezhen's soil. Through the process of mixing, forming and baking into a variety of daily necessities.
And modern high-tech ceramics. Also known as special ceramics. Its material is synthetic. Such as silicon nitride powder. High purity.
Manufactured using modern powder metallurgy processes. The resulting products have high hardness and high temperature resistance.
