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 properties are called ceramics because their manufacturing process is different from traditional ceramics, and more importantly, their chemical composition, microstructure and characteristics are different from traditional ceramics. New ceramics. New ceramics also have the following terms: advanced ceramics, high-performance ceramics, high-tech ceramics, fine ceramics, special ceramics, industrial ceramics, etc. Most of our country is called "industrial ceramics".
New ceramics are inorganic non-metallic materials that use artificially refined inorganic powder raw materials to achieve specific properties through structural design, precise stoichiometry, appropriate molding methods and firing systems, and are processed to meet the precision required for use.
New ceramics are divided into two categories, namely structural ceramics (or engineering ceramics) and functional ceramics. Ceramics with mechanical functions, thermal functions and some chemical functions are listed as structural ceramics, while ceramics with electrical, optical, magnetic, chemical and biological properties and mutual conversion functions are listed as functional ceramics. New ceramics often have more than a single function, so it is difficult to accurately divide and classify them.
Functional ceramics have many functions such as electrical insulation, semiconductor, conductivity, piezoelectricity, ferroelectricity, magnetism, corrosion resistance, chemical adsorption, biological adaptability, sound absorption, radiation resistance, etc., and have mutual conversion function.
With the development of science and technology, multifunctional ceramic materials have been gradually developed and produced. The multifunctionality of this ceramic material is difficult to achieve by other materials, so it is very eye-catching!