Non-Linear Hysteresis Properties of PZT Ceramics

Abstract

The paper deals with the dynamic measurement of the hydrostatic piezoelectric coefficients of Pb(Zr x Ti 1−x )O 3 (PZT) piezoelectric ceramics. The non-linear phenomena as the influence of a DC electric field on the hydrostatic voltage coefficient g h of a PZT sample was studied at various temperatures. Values of the coercive field were determined and compared with ones obtained from polarization vs. electric filed P(E) hysteresis loop measurements. Using the LVDT sensor, the deformation vs. electric field S(E) hysteresis loop, measured in the wide temperature range, was provided too. A noticeable influence of the temperature on coercive field values was exhibited both for hard and soft PZT ceramics (APC 841 and APC 856).

The Influence of DC Electric Field on Piezoelectric Coefficients of PZT Ceramics

“…The piezoelectric loop d 33 (E) in Fig. 6 is slimmer than the polarization loops P(E) [11]. Table 2.…”

“…The dependence of the hydrostatic coefficient d h vs. bias electric field was measured by a dynamic hydrostatic method, described in our previous papers [9][10][11]16]. For the combined static and dynamic hydrostatic sinusoidal pressure excitation…”

“…Because the description of the piezoelectric ferroelectric solids by the elastic, piezoelectric and dielectric non-linear material constants is complicated, the exact expression for the piezoelectric response is not feasible. From this reasons studies of non-linear effects are provided mainly experimentally [4][5][6][7][8][9][10][11][13][14][15].…”

Piezoelectric and ferroelectric properties of new Pb9Ce2Ti12O36 and lead-free Ba2NdTi2Nb3O15 ceramics

“…The influence of DC electric field on the permittivity of BNTN and Pb 9 CTO ceramics was also investigated. The measurement set-up for application of high bias electric fields is described [8]. A blocking circuit was used to separate the high-and low voltage signals to protect the inputs of the impedance analyzer (HP 4192A, Agilent).…”