Effects of sintering temperature on the properties of Mn/Y codoped Ba0.67Sr0.33TiO3 ceramics for tunable application

Qiang, Hua; Xu, Zunping

doi:10.1007/s10854-015-3591-1

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Meanwhile, the BT-ST solid solution was confirmed because equivalent substitution can induce relaxor ferroelectric with low hysteresis [23]. In the case of BT-100xST ceramics, although microwave-tunability [24], sintering behavior [25,26], and energy storage properties [27,28] have been researched extensively during the past decades, hysteresis and electrostrictive effects are still rarely reported. In the following, we shall expound the effect of Sr 2+ addition to BaTiO 3 ceramics on the crystal structure, microstructure dielectric, ferroelectric, strain and electrostrictive properties.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrostrictive Coefficient and Suppressive Hysteresis in Lead-Free Ba(1−x)SrxTiO3 Piezoelectric Ceramics with High Strain

Song

Sun

et al. 2021

Crystals

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Lead-free piezoelectric ceramics with both low hysteresis and superior electrostrictive coefficient features are crucial toward providing desired performance for intelligent electrical devices, especially in high-precision displacement actuators. In this work, we propose a novel scenario, which is to design the phase transition around ambient temperature to enhance electrostrictive effect and inhibit hysteresis. In other words, the dense ceramics with cubic phases (C) and tetragonal phases (T) coexisting at RT (room temperature) were designed. According to this scenario, the Ba(1−x)SrxTiO3 (abbreviated as BT-100xST) ceramics were fabricated by the conventional solid-state reaction method. The relaxor behavior, ferroelectric properties, crystal structure and microstructure of BT-100xST ceramics have been investigated in detail. As a result, the BT-100xST ceramics with x = 0.20–0.40 present relaxor behavior which was indicated by dielectric constant as a function of temperature and (polarization–electric field) P–E hysteresis loops. The BT-30ST ceramics exhibit enhanced electrostrictive coefficient Q33 (>0.034 m4/C2), and the electrostrictive strain and low hysteresis achieves 0.11% and 2%, respectively. The BT-100xST ceramics are considered as a prospective option for application in displacement actuators with high sensitivity and high precision.

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