Experimental research on response characteristics of optically controlled micro-damping system based on PLZT ceramic-electrorheological fluid

Yao, Yao; Liu, Zhicheng; Wang, Xinjie; Lv, Zhen

doi:10.1016/j.mtcomm.2024.109223

Materials Today Communications

2024

DOI: 10.1016/j.mtcomm.2024.109223

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Experimental research on response characteristics of optically controlled micro-damping system based on PLZT ceramic-electrorheological fluid

Yao Yao,

Zhicheng Liu,

Xinjie Wang

et al.

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2024

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Cited by 3 publications

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Viscoelastic properties of electro-rheological fluids containing ion-conductive polyurethane particles under electric field

Ishii,

Takahashi,

Sakai

2024

Smart Mater. Struct.

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A non-hydrous electro-rheological fluid (ERF) containing polyurethane (PU) particles with electrolytes and automotive dampers utilizing it have been developed. In this study, we investigated the influence of electrolytes and particle properties on ER effect (yield stress) leading to improving the ER effect of non-hydrous ERFs. As a result, yield stress was increased by the inclusion of electrolytes to PU particles and decreased by increasing the glass transition point (Tg) of PU. The inclusion of electrolyte in particles doubled the yield stress of ERF at 5 kV mm−1. The change in Tg of PU particles from −26.3 °C to −15.3 °C resulted in a decrease in yield stress by 0.7 times at 5 kV mm−1. According to a theoretical model for calculating the ER effect and experimental data, the ionic conductivity associated with the electrolyte addition and the Tg change contributed to the dielectric constant of the PU particles, which affected the ER effect. This result provides important knowledge for deriving material compositions that can further improve the ER effect.

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Viscoelastic properties of electro-rheological fluids containing ion-conductive polyurethane particles under electric field

Ishii,

Takahashi,

Sakai

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

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Investigation on influence factors of optically controlled electrorheological fluid damping system

Yao,

Wang,

Liu

2024

Smart Mater. Struct.

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Electromagnetic rheological damping control system, as an important control technology, has been widely used in braking, vibration reduction and micro-valve etc. However, the electromagnetic rheological damping control system faces issues of electromagnetic interference due to the high voltage source. To solve this problem, we proposed a novel optically controlled electrorheological fluid damping system. Previous studies have confirmed the feasibility of the optically controlled electrorheological fluid damping control system via numerical simulation and experiment. In this paper, the mechanism and mathematical model of the optically controlled electrorheological fluid damping system are established. The influence factor analyses of the optically controlled damping system, especially the impact of light intensity and microchannel size on system performance, are carried out through experimental and theoretical methods. The research findings of influence factors contribute to a deeper understanding of the working principle of the electrorheological fluid damping system, thereby promoting stability and reliability in microfluidics technology.

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Investigation of Piezoelectric Properties in Ca-Doped PbBa(Zr,Ti)O3 (PBZT) Ceramics

Makowska,

Pawełczyk,

Soszyński

et al. 2024

Micromachines

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The perovskite-structured materials Pb0.75Ba0.251−xCax(Zr0.7Ti0.3)O3 for x = 1 and 2 at.% were synthesized using the conventional mixed-oxide method and carbonates. Microstructural analysis, performed using a scanning electron microscope, revealed rounded grains with relatively inhomogeneous sizes and distinct grain boundaries. X-ray diffraction confirmed that the materials exhibit a rhombohedral structure with an R3c space group at room temperature. Piezoelectric resonance measurements were conducted to determine the piezoelectric and elastic properties of the samples. The results indicated that a small amount of calcium doping significantly enhanced the piezoelectric coefficient d31. The calcium-doped ceramics exhibited higher electrical permittivity across the entire temperature range compared to the pure material, as well as a significant value of remanent polarization. These findings indicate that the performance parameters of the base material have been significantly improved, making these ceramics promising candidates for various applications.

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Experimental research on response characteristics of optically controlled micro-damping system based on PLZT ceramic-electrorheological fluid

Cited by 3 publications

References 17 publications

Viscoelastic properties of electro-rheological fluids containing ion-conductive polyurethane particles under electric field

Viscoelastic properties of electro-rheological fluids containing ion-conductive polyurethane particles under electric field

Investigation on influence factors of optically controlled electrorheological fluid damping system

Investigation of Piezoelectric Properties in Ca-Doped PbBa(Zr,Ti)O3 (PBZT) Ceramics

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