Experimental research on dynamic response of PZT-5H under impact load

Wang, Ruizhi; Tang, Enling; Yang, Guolai; Han, Yafei

doi:10.1016/j.ceramint.2019.09.280

Cited by 26 publications

(10 citation statements)

References 13 publications

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“…, 2018). According to the literature (Wang et al. , 2020), the formation of cracks leads to abnormal discharge voltage and gap discharge.…”

Section: Metal Materials Under Impact Loadsmentioning

confidence: 99%

Evaluation and prediction of material fatigue characteristics under impact loads: review and prospects

Liu

et al. 2022

IJSI

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PurposeThe properties of materials under impact load are introduced in terms of metal, nonmetallic materials and composite materials. And the application of impact load research in biological fields is also mentioned. The current hot research topics and achievements in this field are summarized. In addition, some problems in theoretical modeling and testing of the mechanical properties of materials are discussed.Design/methodology/approachThe situation of materials under impact load is of great significance to show the mechanical performance. The performance of various materials under impact load is different, and there are many research methods. It is affected by some kinds of factors, such as the temperature, the gap and the speed of load.FindingsThe research on mechanical properties of materials under impact load has the characteristics as fellow. It is difficult to build the theoretical model, verify by experiment and analyze the data accumulation.Originality/valueThis review provides a reference for further study of material properties.

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“…, 2018). According to the literature (Wang et al. , 2020), the formation of cracks leads to abnormal discharge voltage and gap discharge.…”

Section: Metal Materials Under Impact Loadsmentioning

confidence: 99%

Evaluation and prediction of material fatigue characteristics under impact loads: review and prospects

Liu

et al. 2022

IJSI

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“…There are no more induced charge when the compressive strain of the material is greater than a certain threshold. The reason can be explained by the internal field theory in the literature [31].…”

Section: The Influence Of Load Resistancementioning

confidence: 99%

“…PZT may have a depolarization effect under the high-stress field and releasing a large amount of charge at some moment [30]. Previous work has studied the nonlinear force-electricity relationship of PZT under high-pressure stress pulses and established a dynamic force-electricity response model based on the strain rate effect [12,31].…”

Section: Introductionmentioning

confidence: 99%

Electrical properties of PZT under high-pressure stress pulse: Effects of loading frequency and circuit load

Wang

Tang

Yang

et al. 2022

Ceramics International

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：The research on the discharge characteristics of PZT under conventional applications has made good progress. In theory, the piezoelectric equation can be used to describe the relationship between stress and electrical output. However, existing studies have shown that the relationship becomes nonlinear under high-pressure stress pulses. To study the effect of loading frequency and circuit load on the electrical output performance of PZT under high-pressure stress pulse, the experiment was carried out based on the split Hopkinson pressure bar and a dynamic & static universal test machine. The effects of different circuits load on the output voltage under high-frequency and low-frequency high-pressure stress pulses are analyzed. Both theory and experiments prove that the critical open-circuit measurement resistance (Rcritial) of PZT decreases with the load frequency. The output voltage is positively correlated with the load resistance when the load resistance is less than Rcritial. It is confirmed by loading different circuits (diodes are added in different positions) that reverse positive charge appears at the negative pole of the material during the stress unloading stage. PZT have the maximum dischargeable strain EM  under the high-pressure stress pulses. PZT no longer generates induced charges when the strain is greater than EM  . When constant strain rate loading makes PZT completely release energy, its open-circuit output voltage is proportional to the strain rate.

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“…According to the space charge theory of Kazantzakis [29] , the space charge in the lattice is mostly vacancy and atom, and the space charge generated by polarization generally exists near the grain boundary or domain wall, as shown in Fig. 17 The discharge of piezoelectric ceramics is composed of the movement of charge in the lattice, and the movement of charge is realized through the movement of vacancies and interstitial atoms in the lattice. The movement of atoms jumps from one lattice position to another, while the jumping of vacancy and interstitial atoms depends on thermal fluctuation [22] , so it is closely related to temperature.…”

Section: The Freezing Effectmentioning

confidence: 99%

“…In 2018, Belovickis et al [12] .studied the dielectric spectrum, ferroelectric and piezoelectric properties of P(VDF-TrFE)/BPZT in the temperature range of 150-420K, and analyzed the relationship between the effective dielectric constant of the composite and the filler concentration by Lichtenecker method. Tang E L et al [13][14][15][16][17] . carried out a large number of dynamic mechanical and electrical performance studies on PZT-5H from 2014 to 2019, and obtained the mechanical response and piezoelectric characteristics of the piezoelectric ceramics under different strain rates, and evaluated the electrical output characteristics of the laminated piezoelectric ceramics under overload conditions, and the influence mechanism of the internal cracks on the discharge characteristics of the ceramics were studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature on the electrical characteristic parameters and dynamic electro-mechanical behaviour of PZT-5H

Tang

Han

et al. 2021

Eur. Phys. J. Plus

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In order to study the electromechanical characteristics of PZT-5H in the temperature range of -40~25℃ under the impact loading, the electrostatic parameters of PZT-5H at different temperatures are measured, the liquid nitrogen cooling/Hopkinson mechanical property and piezoelectric ceramic voltage output testing system are built, Hopkinson experiments at different temperatures (-40 ℃ , -25 ℃ , -10 ℃ , 0 ℃ and 25 ℃ ) and different impact velocities are carried out. Experimental results show that , the resistivity and relative permittivity decrease with the temperature of PZT-5H decreasing from 25℃ to -40℃, and the relative permittivity decrease about 27.92%, and the relaxation time is also deduced. By scanning electron microscope (SEM) and Energy Dispersive Spectrometer (EDS) observation, it is found that the blowhole defects and cracks of the piezoelectric ceramics have obvious effects on the electrical output characteristics of piezoelectric ceramics when the piezoelectric ceramics are struck. Based on the analysis of space charge theory, the freezing effect of piezoelectric ceramics caused by the obstruction of domain motion at low temperature is obtained. And the dynamic piezoelectric constant in the elastic region measured is about 1.66 times that of the static piezoelectric constant, which indicates that the relative dielectric constant of the piezoelectric ceramic has changed significantly under dynamic loading.

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Experimental research on dynamic response of PZT-5H under impact load

Cited by 26 publications

References 13 publications

Evaluation and prediction of material fatigue characteristics under impact loads: review and prospects

Evaluation and prediction of material fatigue characteristics under impact loads: review and prospects

Electrical properties of PZT under high-pressure stress pulse: Effects of loading frequency and circuit load

Influence of temperature on the electrical characteristic parameters and dynamic electro-mechanical behaviour of PZT-5H

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