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The future development prospects of precision ceramics

2020-09-16(2306)Views

Precision ceramics are new products that are different from traditional ceramics, also known as high-functional ceramics, engineering ceramics, etc.

Precision ceramics are new products that are different from traditional ceramics, also known as high-functional ceramics, engineering ceramics, etc. As far as the primary components are concerned, they can be divided into carbides, nitrides, oxides and borides. In terms of use, it can be divided into structural ceramics, cutting ceramics and functional ceramics.

Fine ceramics are made with strict control of ingredients and specific processes without mechanical grinding and processing, and they have a smooth and smooth appearance and meet the requirements of public service standards. It is mainly used to make circuit substrates, coil frames, electronic tube sockets, high-voltage insulating porcelain, and rocket front cones. It can also be made into fine casting cores with high porosity for casting alloys. It can also be used as high temperature materials with good shock resistance.

In recent years, countries around the world are changing from traditional ceramics to new ceramics. Ceramics are no longer limited to art and daily life. Because of their outstanding heat resistance, biocompatibility and other functions, they are widely used in heat conduction, thermomechanics, Sensitive sensors, optics and new energy have become the main points of research in various countries.

The new ceramics are far superior to traditional ceramics and existing metal or non-metal materials in terms of high temperature resistance, corrosion resistance, wear resistance, super-hardness, and superconductivity. New-style ceramics also have functions such as light sensitivity, gas sensitivity, heat sensitivity, humidity sensitivity, and piezoelectricity. These functions are the basis for making artificial intelligence materials. Therefore, at that time, some countries, especially those with prosperous economy and skills, put the development of new ceramic materials in an important strategic position, and turned a large number of engineering skilled personnel and funds to the research and development of new ceramic materials.

As fine ceramics, the main difference between it and general ceramics is that the materials of fine ceramics are strictly selected, that is, to obtain the highest purity materials that meet the requirements, and the particle size of the materials used is as fine as possible. It is not necessary to be precise Control its chemical composition to avoid mixing of undesirable impurities and the occurrence of flying or volatilization of various components, and then to control the formation of microstructures. Pay great attention to the size of sintered particles, particle interfaces, and pores. With this series of efforts, the unique excellent functions of ceramics can be fully demonstrated.

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