Enhanced dielectric and piezoelectric properties of 0–3 PZT/PVDF composites

Tiwari, Vineet; Srivastava, Geetika

doi:10.1007/s10965-016-0928-2

Cited by 22 publications

(19 citation statements)

References 37 publications

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“…Sintered and corona poled samples of this ceramic showed values of piezoelectric charge coefficient d 33 , eff = 580 pm V −1 and pyroelectric coefficient p = 800 µC m − ² K −1 . A recent work showed that improving the filler properties will also lead to improved properties of the composites …”

Section: Methodsmentioning

confidence: 99%

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Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

Dietze

Es‐Souni

2019

Macro Materials & Eng

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Wearable electronics, sensors, and energy harvesting devices are gaining an ever increasing importance in consumer products. Their success is, however, contingent on the availability of flexible and cost‐effective functional materials. The present paper presents an up‐scaled processing route for 0–3 thick film composites of the ferroelectric polymer polyvinylidenefluoride‐trifluoroethylene and a relaxor ceramic. Different compositions are investigated for pyro‐ and piezoelectric applications. Various samples are produced via tape casting and spin‐coating as freestanding and supported films of up to 600 × 200 mm² and on 150 mm silicon wafers, respectively. The samples are characterized in terms of thickness and roughness reproducibility, mechanical properties, and impedance. It is shown that good reproducibility and quality of the films can be realized. Depending on the application targeted (pyroelectric or piezoelectric), specific compositions together with the suitable poling process are presented. For instance, a composite with 24 vol% ceramic shows highest pyroelectric properties together with lowest piezoelectric thickness coefficient (d33) when poled for pyroelectric applications. On the other hand, a composite with 50 vol% ceramic exhibits a d33 of 100 pm V−1 that is unsurpassed for this type of composites. These properties are advantageous in a large variety of applications, including wearable devices.

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Section: Methodsmentioning

confidence: 99%

“…To achieve good pyro‐ and piezoelectric properties a poling process must be used to align the ferroelectric domains and thus increase the aforementioned properties. Several methods of poling this kind of composites were proposed . Usually electrode or contact poling is used to polarize the samples.…”

Section: Methodsmentioning

confidence: 99%

Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

Dietze

Es‐Souni

2019

Macro Materials & Eng

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“…The PZT-PVDF composites of 0-3 connectivity prepared using different methods under different condition have been considered for this study. The composite samples prepared in the different poling field [17], dissimilar particle size of PZT [35], altered volume fraction [4,23]and measured at diverse frequencies [18] have been considered for the study. …”

Section: Variation Of Dielectric Constant With Temperaturementioning

confidence: 99%

“…The variation of dielectric constant with the changing temperature of the composite materials has been analyzed extensively in numerous literatures [4,[17][18]23,35]. The temperature dependence of the dielectric constant for the piezocomposites prepared at IJASR|VOL 01|ISSUE 08|2015 www.ssjournals.com different volume fraction, frequency, particle size and poling field have been represented in the Fig.…”

Section: Temperature Dependence Of Dielectric Constantmentioning

confidence: 99%

“…Piezoelectric ceramics are used in a variety of applications because of its excellent piezoelectric, dielectric properties, with very high pyroelectric constants, and strong electromechanical coupling [4]. However, its inherent properties, such as poor mechanical properties and the large difference in acoustic impedance with water restrict its applications in areas such as vibration sensing, impact detection, fiber-reinforced structures in aircraft and energy harvesting [5].…”

Section: Introductionmentioning

confidence: 99%

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An effective approach on physical and dielectric properties of PZT-PVDF composites

Gowdhaman¹,

K²,

Annamalai³

2015

Int J of Adv in Sci Res

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The 0-3 connected ferroelectric composites made of PZT and PVDF have been examined for its different physical and dielectric properties. The standard methods presented in earlier literatures for the composite preparation have been compared to find an effective method. The distinction in the physical properties like density and porosity of the piezocomposite was studied and their SEM morphological facts are scrutinized. The dielectric constant of PZT-PVDF composite has been predicted by using standard models and the results are compared. Also the relaxation behavior of polymer at higher temperature has been justified.

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Thermal, mechanical, and dielectric properties of low loss PbZr₀_.₃Ti₀_.₇O₃/polystyrene composites prepared by hot‐press method

et al. 2020

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The incorporation of high dielectric constant filler particles into thermoplastics is an attractive approach to develop materials with high dielectric strength, low dielectric loss, and mechanical stiffness, for electronic packaging purposes. Herein, we report the preparation and properties of polystyrene (PS) based low loss 0-3 composites with inorganic PbZr 0.3 Ti 0.7 O 3 (PZT) filler particles in concentrations ranging from 0%-20% (w/w). The PZT particles were synthesized using the sol-gel process and the composites were prepared by a two-step, solvent-free approach: (1) melt mixing, followed by (2) hot press. The thermal and mechanical properties of the composite samples were investigated. The dielectric behavior of the as-synthesized composites showed pronounced improvement over pure PS, as is seen from the increased dielectric constant and extremely low loss tangent. For 20 wt.% PZT loading, the dielectric constant of the composite is as high as 12 at 1 MHz frequency, which is about five times greater than that of pure PS (ε = 2.5). All the PZT/PS composites exhibit remarkably low dielectric losses, even at lower frequencies (tan δ ≤ 0.04), which is better than reported literature values of PS based composites. The variation in dielectric constants of the samples with increasing temperatures was also recorded.

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Enhanced dielectric and piezoelectric properties of 0–3 PZT/PVDF composites

Cited by 22 publications

References 37 publications

Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

An effective approach on physical and dielectric properties of PZT-PVDF composites

Thermal, mechanical, and dielectric properties of low loss PbZr₀_.₃Ti₀_.₇O₃/polystyrene composites prepared by hot‐press method

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Enhanced dielectric and piezoelectric properties of 0–3 PZT/PVDF composites

Cited by 22 publications

References 37 publications

Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

Large Area Thick Films of PVDF‐TrFE and Relaxor‐Ceramics for Piezo‐ and Pyroelectric Applications

An effective approach on physical and dielectric properties of PZT-PVDF composites

Thermal, mechanical, and dielectric properties of low loss PbZr0.3Ti0.7O3/polystyrene composites prepared by hot‐press method

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Thermal, mechanical, and dielectric properties of low loss PbZr₀_.₃Ti₀_.₇O₃/polystyrene composites prepared by hot‐press method