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Structural Ceramics Technology And Application

Hangzhou JWG Technology Co.Ltd | Updated: Oct 19, 2017

Functional ceramics include insulating materials (electricity, heat), capacitor dielectric materials, ferroelectric and piezoelectric materials, semiconductor materials, superconducting materials, Structural Ceramics electro-optical ceramic materials, thermoelectric ceramic materials, chemical adsorption materials, and solid electrolyte materials. In the traditional piezoelectric ceramic materials such as PbTiO3, Structural Ceramics PbZrxTi1-xO3 (PZT) doped with trace oxides such as Y2O3, La2O3, Sm2O3, CeO2, Nd2O3, etc. can greatly improve the dielectric and piezoelectric properties of these materials, making them more PZT piezoelectric ceramics have been widely used in electro-acoustic, acoustic, ultrasonic devices, signal processing, infrared technology, ignition detonation, micro-motor and so on. Piezoelectric ceramic sensors have been successfully used in automotive air bag protection system. Structural Ceramics In the mobile phone and computer using a large number of multi-layer ceramic capacitors, elements such as La, Ce,Structural Ceramics Nd play an important role in which. Structural Ceramics The study of semiconductor ceramics is very active, this material is mainly BaTiO3-doped rare earth and SrTiO3-based doped rare earth, doping in this effect plays a key role, PTC thermal semiconducting materials can be used as over-electric overheating protection Components, temperature compensators, Structural Ceramics temperature sensors, delay components, degaussing components and so on.

High-temperature superconducting materials are also popular research topics in the world. The Curie temperature Tc of the superconducting material has been greatly improved due to the discovery of rare earth oxide La-Ba-Cu-O superconductor and its subsequent research. China's high-temperature superconductivity research in the international leading position, Y-Ba-Cu-O system preparation technology, Structural Ceramics application technology and application of basic research has made varying degrees of progress, RE-Ba-Cu-O superconductor Tc is 80 ~ (Sr, Nd) CuO2 and Sr1-xYxCuO2, which are doped with superalloys such as alkali metal. Superconducting materials are widely used, can be used as superconducting electromagnets for maglev trains, can be used for generators, engines, Structural Ceramics power transmission, microwave and so on.

High temperature structural ceramics, mainly refers to the rare earth doped Si3N4, SiC, Structural Ceramics ZrO2 and other high temperature, high strength, high toughness ceramic, is the engineering ceramics. Si3N4 ceramics and their composites doped with rare earth (La, Y) can be used in high-tech fields such as high-temperature gas turbine, ceramic engine and high temperature bearing, and the working temperature is up to 1650 ℃. Structural Ceramics Silicon nitride ceramic bearings can be used in some special environments such as electromagnetic field environment, the temperature range of -40 ℃ ~ +200 ℃, and can not be used in the environment can not be lubricated. The rare earth ZrO2 toughened ceramics can be used as wear-resistant materials such as internal combustion engine parts, blades, mold inserts, computer-driven components, seals and ceramic bearings.

Hangzhou JWG Technology Co.Ltd