Effects of uniaxial prestress on the ferroelectric hysteretic response of soft PZT

Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate

“…8 External mechanical compressive stress has been found to strongly influence switching, 9,10 either suppressing or assisting domain reorientation processes. 4,[11][12][13][14][15][16][17][18][19][20][21][22] If the external applied stress is large enough domain switching may be suppressed completely. 12,14 However, small mechanical compressive stresses can also prompt an increase in ferroelectric properties.…”

“…12,14 However, small mechanical compressive stresses can also prompt an increase in ferroelectric properties. 4,5,16,19,20 Depending on the orientation of the mechanical load it is possible to improve the domain switching ability of polycrystalline 21,22 and single crystal ferroelectrics. 23 The influence of mechanical load is not limited to external stress; intrinsic internal stress has also been found to influence the switching behavior of ferroelectric materials.…”

Simulation of electromechanical responses of ferroelectric ceramics driven by alternating compressive stress and static electric field

“…The performance of these piezoceramics is sensitive to the loading conditions, which demands a thorough study under various loading conditions. For instance, a piezoceramic device driven by a high-frequency and lowamplitude electric field demonstrates linear electromechanical responses, [1][2][3][4][5] which can be expressed by a pair of linear constitutive relations. However, under the condition of large amplitude and low frequency, the corresponding piezoelectric, elastic, and dielectric properties show nonlinear and hysteretic behaviors.…”

“…There are basically three combinations for the electrical and mechanical loadings: ͑1͒ alternating electric field and static stress, ͑2͒ alternating stress and dc field, and ͑3͒ both alternating field and stress with an arbitrary phase difference. Lynch, 11 Chaplya,12 and Zhou et al 5 studied the effect of static stress on the polarization and strain of a PZT ceramic driven by an alternating electric field. They observed that both the remanent polarization and spontaneous strain are suppressed under a large longitudinal compressive stress.…”

“…The latter is related to an important issue of electric field-dependent mechanical stiffness, which is useful in many different smart material designs. Zhou et al 5 investigated the stress-strain ͑ -͒ and stress-electric displacement ͑ -D͒ relations under different static electric fields. They attributed their observations to the non-180°do-main switching.…”