Low-temperature sintering PZT ceramic materials

  Low-temperature sintering PZT ceramic materials

After decades of research, piezoelectric ceramics has made great progress. Piezo discs and cylinders has become one of the most important functional materials at home and abroad. It is widely used in electronic, radar, micro-displacement control, aerospace technology and computer contour In the field of technology, the future development of PZT piezoelectric ceramics mainly includes PLZT transparent ceramics. Transparent ferroelectric piezoelectric ceramics have dielectric, ferroelectric, piezoelectric, electro-optical and pyroelectric properties ,which have important LL sites in the ferroelectric field, Piezoelectric disc crystal is making them suitable for many types of devices. (2) Low-temperature sintering PZT ceramic materials, Development of low-temperature sintered PZT piezoelectric reviews of silicate notification, piezo ultrasonic transformer with PZT materials technology is to achieve low-temperature sintering of PZT piezoelectric ceramics,c piezoelectri disc transducer not only can effectively ensure that ceramics, materials, additive piezo effects, product effects, and different degrees of coupling .With the new multi-functional ferroelectric ceramic materials can be developed.Currently there are magnetoelectric coupling, optical coupling, magneto-optical coupling. (4) piezo ceramic disc crystal is lead-free series of piezoelectric ceramics.Since PZT-based piezoelectric ceramics contain a large amount of lead, the manufacturing process is likely to cause environmental pollution. Therefore, research on lead-free piezoelectric ceramics has been quietly emerging, but its performance is not as good as that of PZT. Therefore,PZT piezo ceramic disc needs to be further improved. (5) it is piezoelectric composite materials. Compared with the traditional piezoelectric ceramic, with better flexibility and machinability, low density, low velocity, easy to air, water and biological tissue to achieve acoustic impedance matching. (6) In order to overcome the fragility of ceramic and easy processing, piezo ceramic came into being. The use of PZT materials are prepared for good mechanical properties, ductility, toughness and easy processing, molding and other characteristics. In short, with the continuous deepening of research work, the preparation of piezo expansion sensor will be more perfect, better performance will certainly play an important role in the field of acoustics and information engineering.