Piezoelectric Ceramics

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Piezoelectric Ceramics

 

piezoelectric materials obtained through the methods of ceramic technology from ferroelectric compounds. During the process of preparation, piezoelectric ceramics are subjected to an external electric field, and as a result, the ferroelectric domains are oriented in such a way as to give rise to a remanent polarization. Articles made of piezoelectric ceramics are either pressed from powder-like masses or cast from plastic masses (see). The firing of piezoelectric ceramics is done at 1200°-1350°C. A proposed method for preparing the raw powders involves the simultaneous chemical precipitation of constituents, which, because of their homogeneity of composition, will improve and stabilize the piezoelectric properties of the ceramics. Piezoelectric ceramics are used, for example, in the manufacture of ultrasonic radiators and detectors and in high-voltage generators.

REFERENCES

Glozman, I. A. P’ezokeramika. Moscow, 1967.
Smazhevskaia, E. G., and N. B. Fel’dman. P’ezoelektricheskaia keramika. Moscow, 1971.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Yang, "Microstructure and electrical properties of (1 - x)[0.82[Bi.sub.0.5][Na.sub.0.5]Ti[O.sub.3]0.18 B[i.sub.0.5][K.sub.0.5]Ti[O.sub.3]]-xBiFe[O.sub.3] lead-free piezoelectric ceramics," Journal of Alloys and Compounds, vol.
Chang, "Structure and electrical properties of PZT-PMS-PZN piezoelectric ceramics," Journal of the European Ceramic Society, vol.
Carman, "Influence of temperature on the electromechanical and fatigue behavior of piezoelectric ceramics," Journal of Applied Physics, vol.
Lead-free piezoelectric ceramics were studied extensively over the last few decades due to environmental concern as well as government regulations against the use of hazardous substances [1].
Hiruma, "Current developments and prospective of lead-free piezoelectric ceramics," Japanese Journal of Applied Physics, vol.47, no.5, pp.3787-3801, 2008.
Liang et al., "Microstructure design of lead-free piezoelectric ceramics," Journal of the European Ceramic Society, vol.33, pp.313-326, 2013.
As the shift towards low carbon economy gains widespread momentum, the market players are eyeing to take a significant slice of piezoelectric ceramics space.
If necessary, in the absence of piezoelectric ceramics of necessary sizes, the choice of rational sizes of K and h can be made using analytical dependencies.
Electrical energy, generated by piezoelectric effect of piezoelectric ceramics, can be efficiently dissipated by external electronic circuits [5].
TABLE 1: Piezoelectric ceramics' physics and electricity performance.
Antiferroelectric-like properties and enhanced polarization of Cu-doped [K.sub.0.5][Na.sub.0.5]Nb[O.sub.3] piezoelectric ceramics. Appl.