Ceramic sealing ring is widely used in all aspects of our life. Because of its high-performance electrical sealing system adopts ceramic sealing ring, it has excellent heat resistance, mechanical shock and corrosion performance. It is often used in electrical sealing system, and because of its excellent corrosion resistance and biological Compatibility is commonly used in medical implant devices such as fibrillators, cochlear implants and neurostimulators. The excellent resistance to high temperature, vibration and mechanical shock is often used in aerospace such as aircraft engines, fire detection systems, etc.
The application of rare earths and rare earth oxides in ceramic materials is mainly used as additives to improve the sintering, compactness, microstructure and crystal phase composition of ceramic materials, thereby greatly improving their mechanics and electrical , Optical or thermal properties to meet the performance requirements of ceramic materials used in different occasions. This article briefly reviews the application of rare earth oxides in structural ceramic materials and functional ceramics.
The performance of advanced ceramic materials is to a certain extent determined by its microstructure, and the quality of the microstructure depends on the preparation process. The preparation process of advanced ceramics is mainly composed of powder preparation, molding and sintering. In the three
The particle size and morphology of ultrafine powders have a great influence on their physical and chemical properties, and their morphology basically determines the overall and surface characteristics of the powders. In addition, the structure and morphological characteristics of the powder include
Ceramic materials are one of the most "hard" materials known. Among them, zirconia ceramics have been widely used and attracted attention from dentures, artificial joints, and aircraft engine parts. Recently, a research result of using a supercomputer to calculate the strength of zirconia ceramics w