What is the difference between special ceramics and ordinary ceramics
In recent decades, with the rise of new technology applications (such as electronic information technology, space science, laser equipment, electronic information technology, etc.), and the development of basic knowledge and detection technology, research on special ceramic materials has developed rapidly . In order to meet the requirements of new technology application for ceramic raw materials, a class of ceramics that are very different from general ceramics in terms of raw materials and process performance has emerged in time. Since then, it has also opened the door to a new world of ceramic raw materials.
In order to distinguish it from traditional ceramics and ordinary ceramics, it is necessary to give this ceramic a new (higher-end atmosphere) name.
Therefore - a series of names such as high-performance ceramics, excellent ceramics, fine ceramics, special ceramics, new ceramics, modern ceramics, high-tech ceramics, engineering project ceramics, etc. appeared.
There is no precise definition of special ceramics . Generally speaking, special ceramics are generally considered to be "selected relatively highly optimized or generated raw materials, able to precisely control the chemical composition, produced and processed according to production technologies that are conducive to ultra-microstructure design and control, and have A class of high-performance ceramics." Like ordinary ceramics, special ceramics are functional material raw materials produced by high-temperature heating and heat treatment processes.
The main application of special ceramics
Cooking, kitchen utensils, furnishings and wall tiles, sanitary ware. Mainly used in space agency, electric energy, metallurgical industry, mechanical equipment, transportation, household appliances and other fields.
Special ceramics can be divided into two categories according to their characteristics and main uses: structural ceramics and structural ceramics.
Structural ceramics refer to ceramics that can be used as structural materials for engineering projects. It has the characteristics of high toughness, high toughness, high mold elasticity, heat resistance, wear resistance, corrosion resistance, oxidation resistance, and thermal shock resistance. Structural ceramics are mainly divided into metal oxide series, non-metallic oxide series and ceramic matrix composite materials used in construction. Structural ceramics can be divided into metal oxides, non-metal oxides, nanotechnology ceramics, low expansion ceramics, and ceramic matrix composite materials.
Metal oxides: Commonly used materials include Al2O3, ZrO2, MgO, SiO2, BeO, zirconium corundum, etc.; have the characteristics of high toughness, high toughness, high wear resistance, high heat transfer, wear resistance, etc.; suitable for various manufacturing Do load-bearing prefabricated components, vehicles, CNC lathes, machine parts, wire drawing dies, CNC blades, measuring instruments, grinding media, etc.
Ceramic CNC blade
Non-metallic oxides: commonly used materials include cementite (SiC, B4C, TiC, etc.), nitrogen compounds (Si3N4, BN, AIN, Sialon, etc.), silicides (MoSi2, TiSi2, Mg2Si, etc.) borides (ZrB2, TiB2, etc. ); It has the characteristics of heat resistance, super force, heat shock resistance, oxidation resistance, etc.; it is suitable for the manufacture of automotive engine parts, gas turbine blades, continuous high temperature lubricating materials, metal composite materials, refractory insulation materials, etc.