Aluminum oxide ceramics, silicon nitride ceramics, zirconia ceramics
Electronic ceramics refer to ceramics that can use electricity and magnetic properties in the electronics industry. Electronic ceramics are ceramics with new functions obtained through precise control of surface, grain boundary and size structure. It can be widely used in energy, household appliances, automobiles, etc.
It is widely used in the production of electronic functional components, most of which are sintered body materials mainly composed of oxides. The manufacturing process of electronic ceramics is roughly the same as that of traditional ceramics. Electronic ceramics, or ceramics for the electronic industry, are essentially different from general electrical ceramics in terms of chemical composition, microstructure and electromechanical properties. These differences are formed by a series of special technical requirements put forward by the electronics industry for electronic ceramics, the most important of which are high mechanical strength, high temperature and high humidity resistance, radiation resistance, and dielectric constants in a wide range. The dielectric loss tangent is small, the capacitance temperature coefficient can be adjusted (or the capacitance change rate can be adjusted), the dielectric strength and insulation resistance are high, and the aging performance is excellent.
The development of electronic ceramic materials is closely related to the development of physical chemistry, applied physics, silicate physical chemistry, solid state physics, optics, electricity, acoustics, radio electronics, etc., and they promote each other, thus leading to the rapid development of electronic technology. Among them, electronic ceramics have also made great progress accordingly. Electronic ceramics have the advantages of high hardness, wear resistance, and high fracture toughness, and are widely used in 3C electronics, machinery, optical communications, chemicals, medical care, aviation, automobiles and other fields. Electronic ceramics occupy a very important position in miniaturized and portable electronic products. In recent years, my country has made great progress in the research and industrialization of electronic ceramic materials, but overall, the development level of electronic ceramics in my country Compared with other countries, there is still a big gap. Therefore, it is of great significance to actively carry out research and development of electronic ceramics.