Abstract
In this communication an attempt has been made to review, in brief, on Curie temperatures (Tc) of lead zirconatetitanate near morphotropical phase boundary. This review also includes 52/48 PZT modified by cadmium (Cd+2) in various amounts such as 5%, 10%, and 15%. We are proposing an easy method of selecting a substitution element for synthesizing modified lead zirconatetitanate (PZT) ceramics. Our investigation revealed that substitution of +3 valence elements will enhance Tc values whereas the substitution of +2 valence elements will decrease Tc. The change in Tc values is also attributed to ionic radii of modifier ions.
Highlights
PZT is an inorganic ferroelectric oxide with ɛris strongly needed for inkjet actuator and loudspeaker applications [10]
The Tc values of modified morphotropical phase boundary (MPB) PZT ceramics are given in Table 1.1 in continuation with the use of Table 1, and in Table 2.2 in continuation with the use of Table 2
The samples of PCZT have been prepared by solid state synthesis
Summary
PZT is an inorganic ferroelectric oxide with ɛris strongly needed for inkjet actuator and loudspeaker applications [10]. The physical properties of PZT can be varied substitution of the donor elements [10]. In any PZT composition, if the amount of titanium is high the material shows the phase of tetragonal structure. Near morphotropical phase boundary (MPB), both tetragonal and rhombohedral phases coexist together The coexistence of these phases has been attributed to the high value of coefficient of electromechanical coupling. Due to the extensive physical properties, PZT near MPB is widely investigated ferroelectric ceramic material system. Presented is the analysis on Tc values of MPB PZT ceramics due to the substitution of +2 and +3 valence elements
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