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The concept of ceramics has gone far beyond the scope of ancient traditional ceramics. Ceramic materials with high strength, temperature resistance, corrosion resistance or various sensitive characteristics are called new ceramics because their production process is different from traditional ceramics, and more importantly, because their chemical composition, microstructure and characteristics are different from traditional ceramics. New ceramics also have the following statements: advanced ceramics, high-performance ceramics, high-tech ceramics, fine ceramics, special ceramics, industrial ceramics, etc. Most of our country is called "industrial ceramics".
The new ceramic is the use of artificial refined inorganic powder raw materials, through structural design, precise stoichiometry, appropriate molding methods and firing system to achieve specific performance, after processing to make it meet the requirements of the use of precision inorganic non-metallic materials.
The new ceramics are divided into two categories, namely structural ceramics (or engineering ceramics) and functional ceramics. Ceramics with mechanical function, thermal function and partial chemical function are listed as structural ceramics, and ceramics with electrical, optical, magnetic, chemical and biological properties and mutual conversion function are listed as functional ceramics. New ceramics often not only have a single function, so it is difficult to accurately divide and classify.
Functional ceramics have many functions such as electrical insulation, semiconductivity, conductivity, piezoelectricity, ferroelectricity, magnetism, corrosion resistance, chemical adsorption, biocompatibility, sound absorption, radiation resistance, etc., and have the function of mutual conversion.
With the development of science and technology, multi-functional ceramic materials have been gradually developed and produced, this ceramic material has the versatility of other materials is difficult to achieve, and thus very eye-catching!