Precision ceramics are new products different from traditional ceramics, also known as high-function ceramics, engineering ceramics, etc., and can be divided into carbides, nitrides, oxides and borides according to their composition. According to the application, it can be divided into structural ceramics, cutting ceramics and functional ceramics.
Fine ceramics are made through strict control of ingredients and specific processes. Mechanical grinding is required, the appearance is smooth, and the ceramic size requirements are met. It is mainly used to manufacture circuit substrates, coil bobbins, electronic tube sockets, high-voltage insulating ceramics, rocket nose cones, etc. It can also be made into precision casting cores for casting alloys with high porosity. It can also be used as high temperature data with good seismic performance.
In recent years, the world is changing from traditional ceramics to new types of ceramics. Ceramics are not only limited to art and daily life, but are widely used in heat conduction, heat engine, sensitive sensors, medical devices, optics and new energy fields due to their excellent heat resistance and biocompatibility.
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The new ceramics are superior to traditional ceramics, existing metallic or non-metallic materials in terms of high temperature, corrosion resistance, wear resistance, superhardness and superconductivity. The new ceramics also have properties such as photosensitivity, gas sensitivity, heat sensitivity, moisture sensitivity, piezoelectricity, etc., all of which are required for the manufacture of artificial intelligence components. Therefore, many countries, especially those with relatively developed economy and technology, place the development of new ceramic materials in an important strategic position, and invest a large number of engineering and technical personnel and funds in the research and development of new ceramic materials.
As precision ceramics, the main difference between precision ceramics and ordinary ceramics is that precision ceramics can obtain high-purity materials through strict screening, and the particle size of the materials used is as fine as possible. Its chemical composition must be precisely controlled to avoid mixing of impurities and volatilization of components. Therefore, it is necessary to control the formation and sintering of fine structures. Particle size, particle interface, porosity, etc. are very demanding. Under these controls, the unique and excellent properties of ceramics are fully manifested.
