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Piezoelectric Ceramics

Sinocera Piezotronics, INC | Updated: Aug 18, 2016

Piezoelectric ceramic is a mechanical energy functional ceramic materials and power to convert information-piezoelectric effect piezoelectric piezoelectricity ceramics in addition to outside, also has a dielectric, elastic and so on, have been widely used in medical imaging, acoustic sensors, Acoustic transducers, ultrasonic motors and so on. Pressure electric ceramic using its material in mechanical stress role Xia, caused internal are negative Center relative displacement and occurred polarization, led to material ends surface appeared symbol instead of bound charge that piezoelectric effect and making, has sensitive of characteristics, pressure electric ceramic main for manufacturing ultrasound for can device, and water sound for can device, and electric sound for can device, and ceramic filter device, and ceramic transformer, and ceramic mirror frequency device, and high pressure generator, and infrared detector, and sound surface wave devices, and electro-optic devices, and introduction burning detonated device and pressure electric gyro,, except for hi-tech field , It is more of a service for people in their daily lives, work hard to create a better life for the people.

Piezoelectric ceramic is a kind of electronic ceramic materials with piezoelectric properties. Typical piezoelectric quartz crystals which may not contain iron is the main difference between: constitute the main ingredients Crystal is ferroelectric crystal. Due to the layer of ceramic is grains of polycrystalline aggregates, so all the spontaneous polarization of ferroelectric Crystal is disorientation. In order to make the ceramics exhibit piezoelectric properties of macro-, it must be in piezoelectric ceramics after firing and was complex electrode end, put it on a strong polarization under DC electric field treatment to clutter the original orientation of the spontaneous polarization vector along the direction of electric field orientation. After the polarisation of piezoelectric ceramics, after the electric field cancel, will retain a certain macroscopic polarization intensity, so that the piezoelectric ceramics has a certain nature.

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