At present, the development trend of the world's precision ceramic products shows that there are more and more product categories. Various precision ceramic products have been successfully used in thermal conduction, thermomechanics, nuclear energy, microelectronic technology, automation devices, sensitive sensors, optical fields, and medical fields. And new energy. At present, the research and production of precision ceramics in various countries is forming a new round of market climax and more intense competition.
The development direction of fine ceramics is mainly focused on high-temperature structural ceramics. Now in aerospace technology, automobiles, aircraft, military industry, nuclear engineering, medical equipment and mechanical power, it has entered a large-scale and large-scale use phase. The research and promotion of precision ceramic materials based on silicon nitride, silicon carbide, and zirconia ceramics in the United States have achieved rapid development, and the output of products has accounted for more than 60% of the world's total output. Ceramic bearings have a working temperature of over 1300 degrees Celsius and their working strength is more than five times that of ordinary metal materials.
Heat-resistant zirconia ceramic tiles can withstand high-temperature aerospace friction up to 6000 degrees Celsius, and are widely used as space shuttle armor. The bioceramic products developed by him have been used in bone repair, porcelain tooth repair and other aspects. Ceramic piston caps, exhaust pipe linings, turbocharged rotors and gas turbine rotors are being researched in an orderly manner. At present, some countries have also strengthened the research and development of military precision ceramics and special ceramics, with a view to gradually strengthening their promotion and use in the military field. Shenzhen Fangtai New Material customizes high-end microporous ceramic vacuum chucks, porous ceramics, and ceramic chuck, which absorbs silicon wafers, wafers, ceramic wafers, flexible screens, glass screens, circuit boards and various non-metal materials.
Precision ceramic sensitive components have occupied a major share of the international market. Various precision ceramic products, including heat-sensitive, pressure-sensitive, magnetic, light-sensitive and gas-sensitive materials, have monopolized a large part of the international market. For example, a large number of precision digital ceramic cameras and a new generation of high-definition televisions use a large number of sensitive ceramic components. In addition, at present, the high-performance ceramic batteries being tested, using solid materials to replace liquid acid solutions, are 2/3 lighter than traditional batteries and have less environmental pollution, and are particularly suitable for use in electric vehicles and spacecraft. In addition, it is well known that the ceramic automobile engine developed and developed has been partially used.
Countries are constantly increasing their investment in developing and researching high-temperature structures of functional ceramics due to their urgent needs. As the research focus, many new ceramic materials are used in the fourth-generation nuclear power generation new materials. A variety of high temperature resistant materials and magnetically sensitive ceramic materials are also widely used in new-type magnetic levitation trains. At present, the Airbus A320 super large aircraft, which is being mass-produced, uses many high-temperature ceramic materials and sensitive ceramic components.
Especially in its engine and power system, due to the large number of heat-resistant ceramics used in the cooling section, energy consumption and heat loss are greatly reduced. Ceramic heat exchange has the ability to recover waste heat from a boiler or other high temperature device. Ceramic pipelines have the ability to withstand the corrosion of various high-temperature chemical gases and increase the heat exchange rate, which will play a key role in the field of energy conservation in many industries.
As a major country in traditional ceramics production, China is currently focusing on the development and innovation of high-tech special ceramics and precision ceramics. First of all, in China's manned spacecraft Shenzhou spacecraft project, a large number of high-temperature ceramic materials and precision sensitive ceramic products have been used. These ceramic materials and sensitive components with various superior and special functions support the rapid progress of the aerospace industry. In addition, in traditional mechanical processing, a new generation of metal cutting tools such as ceramic tools have been promoted. As the world's largest producer of household appliances, the use of various types of sensitive components in many household appliances is wider. With more quantities, the production of thermal, magnetic and photosensitive ceramic materials is booming. This puts forward more requirements for the development and production of domestic special ceramic products. While satisfying domestic demand, some products are also being exported to the international market in large quantities.
The development of precision ceramics creates a new market competition situation
2020 01/13