Niobate-based piezoelectric ceramics, particularly potassium sodium niobate based lead-free ceramic having a high Curie temperature (Tc) is regarded as one alternative to PZT based piezoelectric ceramic main object of selection.
PZT piezoelectric ceramic powders of various chemical methods, co-precipitation method due to its simple process, and the resulting powder good performance has been widely used. 1976 Japanese body Murata M. et al prepared by co-precipitation PZT ceramic powders, but the process in order to avoid precipitation of PbCl2 and PbOCL priority generation
Concentration of 1 precipitation solution: will affect the particle size, crystal, yield, purity and surface properties of precipitation. Typically, a relatively dilute solution of the precipitate, due to lower the nucleation rate, the particle size is easy to obtain a larger, more complete crystalline, high purity crystalline properties and surface precipitation
Ultrasonic acting on the object, the object can generate vibration, ultrasonic vibration amplitude and intensity depending on the frequency of the sound source of power, these two indicators can precisely control in modern electric acoustics.
With the rapid development of technology, piezoelectric ceramic chip ultrasonic motors also get a comprehensive type of development, but it is part of one of the piezoelectric ceramic chip secret weapon, why do you say so?
It is mainly used microporous sheet atomization various medical micro atomizer, USB humidifier, perfume atomizer, fragrance atomizer. Oil atomizer, all kinds of non-cotton core humidifiers, various atomizer beauty class, then trace atomization sheet has the following characteristics:
Piezoelectric ceramics, commonly known as the buzzer is an electronic pronunciation components. Based on the principle of the piezoelectric effect, in the middle of two pieces of copper circular electrode placed piezoelectric ceramic dielectric material, when the above two electrodes connected to AC audio signal, the size of the piezoelectric film will signal frequency of vibrations generated according to the corresponding voices.
The application of ultrasonic medical devices are one of the typical applications of piezoelectric ceramics in diagnosis and treatment. Detecting element linear array type ultrasonic tomography scan diagnostic imaging device is cut off by the fine quality material processed form.
Metal detection devices, ultrasonic nondestructive inspection to ensure the quality of the solid structure of the material.
One is the use of high energy ultrasonic piezoelectric element sandwiched by a screw on the metal used as the high intensity transducer, an annular element is applied to the production of a variety of high-power driving.
In the use of ultrasound in the liquid to be turned into a clean empty. In order to meet the semiconductor industry and other precision cleaning requirements and to high-frequency, high-frequency cleaning of the production of the element is adapted to the acceleration of the liquid particles is increased.
