Special ceramics
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a class="ed_inner_link"href="/lemma/ShowInnerLink.htm? LemmaId=8673440 "target=" _blank "ss_c=" ssc. citiao. link ">Different chemical compositions and organizational structures of special ceramics determine their different special properties and functions, such as high strength, high hardness, high toughness, corrosion resistance, conductivity, insulation, magnetism, light transmission, semiconductors, piezoelectric, photoelectric, electro-optic, acousto-optic, magneto-optical, etc. Due to their special properties, these ceramics can be used as engineering structural materials and functional materials in machinery, electronics, chemical industry, smelting, energy, medicine, laser, nuclear reaction, aerospace and other fields. Some economically developed countries, especially Japan, the United States and Western European countries, have invested a lot of manpower, material resources and financial resources to research and develop special ceramics in order to accelerate the new technological revolution and lay a material foundation for the development of new industries. Therefore, special ceramics have developed very rapidly and made great breakthroughs in technology. Special ceramics play an increasingly important role in modern industrial technology, especially in the field of high technology and new technology. At the beginning of this century, the international market scale of special ceramics is expected to reach 50 billion dollars, so many scientists predict that special ceramics will play a very important role in the development of science and technology in the twenty-first century.