The frequency-dependent behavior of a ferroelectric single crystal with dislocation arrays

Wu, Hong‐Hui; Cao, Shigu; Zhu, Jiaming; Zhang, Tong‐Yi

doi:10.1007/s00707-015-1512-2

Cited by 10 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is quite interesting to note that in the sensor application, the hysteresis loop exhibits a nonmonotonic behavior with increasing frequency. This is a proof that it is practically possible to demonstrate this behavior as numerically proven in the literature (Wu et al, 2017). At 100 Hz, the vibration acceleration produced by the shaker is 21:127 m=s 2 (AVS off).…”

Section: Characteristics Of Beam Piezoelectric Patchsupporting

confidence: 75%

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Satar

Murad

Mazlan

2020

Journal of Vibration and Control

View full text Add to dashboard Cite

This research work aims to investigate the presence of four nonlinear characteristics (i.e., hysteresis, saturation, creep, and uncertainty vibration) when a piezoelectric patch material acts as an actuator and sensor for the active vibration suppression of a cantilever beam. The parameters such as different operating frequencies and voltages are taken into account for the piezoelectric patch material characterization and the vibration before and after activation of a proportional–derivative–integral controller in an active vibration suppression system are measured. The effect of different proportional–derivative–integral controller tuning methods, frequency independent, and frequency dependency excitations are the three main contributions to evaluate the performance of active vibration suppression system. From the results, the piezoelectric actuator posed all the four nonlinearity effects while only three are observed in the sensor characteristics, and these effects increased significantly with the increase of operating frequencies and voltages. For the frequency-independent excitation of the active vibration suppression system, the vibration attenuation of the beam shows an improvement from low to higher excitation frequency, except at 500 Hz because of the saturation effect. In terms of controller performances, the proportional gain step-up method shows the best performance by scoring 3/5 of highest vibration attenuation percentages compared with manual and Ziegler–Nichols methods. For the frequency-dependent excitation, the effective frequency range for the active vibration suppression system is determined between 75 and 245 Hz with the highest vibration attenuation of 79.60% occurred at the second natural frequency of the beam.

show abstract

Section: Characteristics Of Beam Piezoelectric Patchsupporting

confidence: 75%

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Satar

Murad

Mazlan

2020

Journal of Vibration and Control

View full text Add to dashboard Cite

show abstract

“…After cycling 100 000 times at 10 V s –1 , they show the excellent cyclic stability with the capacitance retention ratio of 98%, which indicates that MnO 2 is a competitive alternative to RuO 2 in future capacitors. Studies on other naturally abundant alternative materials, such as MoS 2 , TiO 2 , Fe 2 O 3 , V 2 O 5 , polyaniline, polythiophene, polypyrrole, and their derivatives, have also undergone great breakthroughs. − …”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Performance of Self-Assembled Nanoflowers of MoS₂ Nanosheets as Supercapacitor Electrode Materials

2019

View full text Add to dashboard Cite

As supercapacitor electrode materials, their structures, including specific surface area, instability, and interconnection, determine the electrochemical performances (specific capacitance, cycle stability, and rate performance). In this study, 1T-MoS2 nanosheets were self-assembled into nanoflowers via a one-pot facile hydrothermal reaction. The nanoflowers retain the excellent electrical conductive performance and the feature of inherent high specific surface area of the nanosheets. For the sheets are interconnected to each other in flower structure, the structure is more stable and the charges are more easily transferred. Thus, compared to the nanosheet electrode, the nanoflower electrode shows the remarkable advantage when used as the electrode of the energy-storage device, whether it is 1T phase or 2H phase in KCl or in KOH. When measured at 0.5 A g–1 in KOH electrolyte, the MoS2 nanoflower electrode exhibits a high specific capacitance of 1120 F g–1. At the same time, when cycling 2000 times at a current density of 10 A g–1, the capacitance retention ratio can reach up to 96%.

show abstract

“…In this case we get another abnormality, as frequency is increased (from 1 Hz to 10 Hz), the coercive field and remnant polarization are firstly reduced (but very small value) but when frequency is further increased to 15 Hz and 100 Hz, both of them are enhanced. ties are usually attributed to the generalized pinning and depinning of the dislocation arrays to polarizations 37 .…”

Section: Resultsmentioning

confidence: 99%

Short-range magnetic correlation and magnetodielectric coupling in multiferroic Pb3TeMn3P2O14

Saha¹,

Fu²,

Itoh³

et al. 2021

Preprint

View full text Add to dashboard Cite

The frequency-dependent behavior of a ferroelectric single crystal with dislocation arrays

Cited by 10 publications

References 24 publications

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Enhanced Electrochemical Performance of Self-Assembled Nanoflowers of MoS₂ Nanosheets as Supercapacitor Electrode Materials

Short-range magnetic correlation and magnetodielectric coupling in multiferroic Pb3TeMn3P2O14

Contact Info

Product

Resources

About

The frequency-dependent behavior of a ferroelectric single crystal with dislocation arrays

Cited by 10 publications

References 24 publications

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Characterization of piezoelectric patch material with hysteresis, saturation, creep, and vibration nonlinearity effects and its application to the active vibration suppression for cantilever beam

Enhanced Electrochemical Performance of Self-Assembled Nanoflowers of MoS2 Nanosheets as Supercapacitor Electrode Materials

Short-range magnetic correlation and magnetodielectric coupling in multiferroic Pb3TeMn3P2O14

Contact Info

Product

Resources

About

Enhanced Electrochemical Performance of Self-Assembled Nanoflowers of MoS₂ Nanosheets as Supercapacitor Electrode Materials