Views: 3 Author: Site Editor Publish Time: 2017-11-29 Origin: Site
Four Important Facts That You Should Know About Ultrasonic Piezo Ceramic
1.Another performance is much better than the barium titanate piezoelectric ceramic ,which material lead zirconate titanate is successfully developed. Since then, the development of piezoelectric ceramics has entered a new phase.piezo discs and cylinders continues to improve to get perfect. Such as the use of a variety of elements modified lead zirconate titanate binary piezoelectric ceramics, lead zirconate titanate is based in the ternary and quaternary piezoelectric ceramics in recent years, lead-free piezoelectric ceramics should also be transported.
2.These materials have excellent performance and simple manufacture, low cost, wide application ,they are favored by people. Piezoelectric material microstructure, composition process, structure performance, especially the choice of composition is the most important, it determines the process parameters required for the preparation of materials, products will be formed in the crystal structure and microstructure, Ultimately determines the performance of the product. Not all materials have acoustic cylindrical piezoelectric transducer , but all asymmetric materials have more or less some piezoelectricity.
3.Whereas for most piezoelectric ceramics the crystal structure is perovskite. Piezoelectric effect is due to the deformation of the crystal under the mechanical force, causing the mutual displacement of charged particles, the total torque of the crystal changes .Due to the existence of polar axis, there is no central symmetry in the crystal of the symmetrical point group. The deformation caused by the mechanical force can cause the change of the total torque, so there is a piezoelectric effect PZT material flexible piezoelectric disc transducer. However, the piezoelectric effect of a piezoelectric body is related to its polarization strength. Therefore, the piezoelectric effect is generated in certain directions only under the force or electric field in some directions.
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