Effect of Uniaxial Compressive Stress on Dielectric and Piezoelectric Responses in Lead Zirconate Titanate Based Ceramics

2012 ◽  
Vol 95 (5) ◽  
pp. 1656-1660 ◽  
Author(s):  
Diego A. Ochoa ◽  
Jose E. García ◽  
Idalberto Tamayo ◽  
Vicenç Gomis ◽  
Dragan Damjanovic ◽  
...  
Keyword(s):  
Compressive Stress ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Uniaxial Compressive Stress

Effect of Uniaxial Compressive Stress on the Partially Fatigued Soft Lead Zirconate Titanate Piezoelectric Ceramics

2014 ◽  
Vol 602-603 ◽  
pp. 817-821 ◽  
Author(s):  
Bin Peng ◽  
Zhen Xing Yue
Keyword(s):  
Electric Field ◽  
Compressive Stress ◽  
Lead Zirconate Titanate ◽  
Domain Walls ◽  
Piezoelectric Ceramics ◽  
Lead Zirconate ◽  
Switching Behavior ◽  
Zirconate Titanate ◽  
Depolarization Effect ◽  
Uniaxial Compressive Stress

Uniaxial compressive stress was applied during fatigue process of soft lead zirconate titanate piezoelectric ceramics and their fatigue resistance was improved when the stress was larger than 20MPa. Before fatigue, compressive stress had a strong depolarization effect and restricted domains switching behavior under large electric field and domain walls motion under small electric field. However, in a partially fatigued state, while domains switching behavior was still restricted by compressive stress, domain walls motion was enhanced. Removal of the applied stress after partial fatigue induced the remnant polarization restored significantly.

scholarly journals Uniaxial compression experiments on lead zirconate titanate 95/5-2Nb ceramic: Evidence for an orientation-dependent, “maximum compressive stress” criterion for onset of the ferroelectric to antiferroelectric polymorphic transformation

2000 ◽  
Vol 15 (3) ◽  
pp. 689-703 ◽  
Author(s):  
D. H. Zeuch ◽  
S. T. Montgomery ◽  
D. J. Holcomb
Keyword(s):  
Hydrostatic Pressure ◽  
Compressive Stress ◽  
Uniaxial Compression ◽  
Lead Zirconate Titanate ◽  
Polymorphic Transformation ◽  
Lead Zirconate ◽  
Maximum Compressive Stress ◽  
Stress Criterion ◽  
Zirconate Titanate ◽  
Kinetic Effects

Recently we showed that, under nonhydrostatic loading, the FR1 →AO polymorphic transformation of unpoled lead zirconate titanate 95/5-2Nb (PNZT) ceramic began when the maximum compressive stress equaled the hydrostatic pressure at which the transformation otherwise occurred. More recently we showed that this criterion seemed not to apply to poled ceramic. However, unpoled ceramic is isotropic whereas poled ceramic is not. If we further assume that the transformation depends on both the stress magnitude and its orientation relative to PNZT's structure, these disparate results can be resolved. This modified hypothesis makes two predictions for transformation of unpoled ceramic under uniaxial compression: (i) it will begin when the compressive stress equals the hydrostatic pressure for transformation, and (ii) steadily increasing stress will be required to drive it to completion. Here we present experimental results that confirm these predictions. We then revisit our earlier results for poled and unpoled PNZT. The new hypothesis quantifies the observed effect of shear stress on the mean stress for onset of the transformation of unpoled ceramic and explains previously reported kinetic effects.

Dielectric and ferroelectric properties of lead zirconate titanate-lead nickel niobate ceramics under compressive stress

2009 ◽  
Vol 105 (8) ◽  
pp. 084111 ◽  
Author(s):  
M. Unruan ◽  
A. Prasartketrakarn ◽  
A. Ngamjarurojana ◽  
Y. Laosiritaworn ◽  
S. Ananta ◽  
...  
Keyword(s):  
Compressive Stress ◽  
Lead Zirconate Titanate ◽  
Ferroelectric Properties ◽  
Lead Zirconate ◽  
Zirconate Titanate ◽  
Lead Nickel ◽  
Titanate Lead

scholarly journals Influence of tensile vs. compressive stress on fatigue of lead zirconate titanate thin films

2021 ◽  
Author(s):  
Naveen Aruchamy ◽  
Tony Schenk ◽  
Veronika Kovacova ◽  
Sebastjan Glinsek ◽  
Emmanuel Defay ◽  
...  
Keyword(s):  
Thin Films ◽  
Compressive Stress ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Zirconate Titanate

Further observations on the effects of nonhydrostatic compression on the FR1 → AO polymorphic phase transformation in niobiumdoped, lead-zirconate-titanate ceramic

1994 ◽  
Vol 9 (5) ◽  
pp. 1322-1327 ◽  
Author(s):  
David H. Zeuch ◽  
Stephen T. Montgomery ◽  
Jeffrey D. Keck
Keyword(s):  
Compressive Stress ◽  
Lead Zirconate Titanate ◽  
Confining Pressure ◽  
Lead Zirconate ◽  
Shear Stresses ◽  
Maximum Compressive Stress ◽  
Zirconate Titanate ◽  
Series Of Experiments ◽  
Lead Zirconate Titanate Ceramic ◽  
Titanate Ceramic

We recently performed a series of experiments on Nb-doped lead-zirconate-titanate ceramic to investigate the influence of constant shear stresses on the displacive, first-order rhombohedral/ferroelectric → orthorhombic/antiferroelectric polymorphic transformation. In a previous paper and report we demonstrated that increasing shear stresses lowers the mean stress and confining pressure at which the transformation occurs, but we did not identify a criterion by which the transformation could be predicted to take place under nonhydrostatic stress. In this paper we use the dielectric anomaly which accompanies the transformation as an indicator of onset of the transition, and correct for the effects of high-pressure-seal friction on measurement of the maximum compressive stress applied to the test specimens during deviatoric loading. We show that a convincing case can be made that the transformation occurs when the maximum compressive stress equals the hydrostatic pressure at which the transformation would otherwise occur.

Convergent-bceam diffraction studies on lead zirconate titanate Ceramics

1986 ◽  
Vol 44 ◽  
pp. 482-483
Author(s):  
M.L.A. Dass ◽  
T.A. Bielicki ◽  
G. Thomas ◽  
T. Yamamoto ◽  
K. Okazaki
Keyword(s):  
Lead Zirconate Titanate ◽  
Direct Proof ◽  
Lead Zirconate ◽  
Subsolidus Phase ◽  
Pzt Ceramics ◽  
Subsolidus Phase Diagram ◽  
Zirconate Titanate ◽  
Two Phases ◽  
Cbd Method ◽  
Titanate Ceramics

Lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), ceramics are ferroelectrics formed as solid solutions between ferroelectric PbTiO3 and ant iferroelectric PbZrO3. The subsolidus phase diagram is shown in figure 1. PZT transforms between the Ti-rich tetragonal (T) and the Zr-rich rhombohedral (R) phases at a composition which is nearly independent of temperature. This phenomenon is called morphotropism, and the boundary between the two phases is known as the morphotropic phase boundary (MPB). The excellent piezoelectric and dielectric properties occurring at this composition are believed to.be due to the coexistence of T and R phases, which results in easy poling (i.e. orientation of individual grain polarizations in the direction of an applied electric field). However, there is little direct proof of the coexistence of the two phases at the MPB, possibly because of the difficulty of distinguishing between them. In this investigation a CBD method was found which would successfully differentiate between the phases, and this was applied to confirm the coexistence of the two phases.

Sign in / Sign up

Export Citation Format

Share Document