Growth and characterization of lead-free Ba(1−x)CaxTi(1−y)ZryO3 single crystal

Zeng, Yiming; Zheng, Yanqing; Tu, Xiaoniu; Lu, Z. Y.; Shi, Er-Wei

doi:10.1016/j.jcrysgro.2012.01.009

Cited by 24 publications

(16 citation statements)

References 22 publications

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“…25 Zeng et al reported the fabrication of BCT-BZT single crystal. 26 Piorra et al investigated electrical properties of 50BZT-50BCT thin films deposited by pulsed laser deposition technique. 27 Yao et al reported high pyroelectricity (5.84 Â 10 À4 C m À2 K À1 at room temperature) in this system.…”

mentioning

confidence: 99%

Synthesis and characterization of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic

Coondoo

Panwar

Amorín

et al. 2013

Journal of Applied Physics

108

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Articles you may be interested inSymmetry determination on Pb-free piezoceramic 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 using convergent beam electron diffraction method J. Appl. Phys. 115, 054108 (2014) Temperature dependent dielectric permittivity studies demonstrated frequency independent behavior, indicating that the studied sample was not a typical relaxor ferroelectric. A polymorphic phase transition between rhombohedral and tetragonal phase was noticed near room temperature followed by a tetragonal to cubic transition with 97 C as the temperature of maximum permittivity. The macroscopic values of d 33 and d 31 were $350 pC/N and À141 pm/V, whereas the electromechanical coupling factors k p and k t were 44.5% and 41.6%, respectively. Bulk P-E hysteresis loop was obtained with saturation polarization 11 lC/cm 2 and coercive field $4 kV/cm. Distinct polarization contrast with a complex mosaic-like domain structure was observed in the out-of-plane mode of piezoresponse force microscopy. The domain width and the correlation length were estimated to be nearly 2 lm and 827 nm, respectively. Local hysteresis loop with apparent coercive voltage, V c ¼ 15.8 V, was observed. V C 2013 AIP Publishing LLC. [http://dx

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mentioning

confidence: 99%

Synthesis and characterization of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic

Coondoo

Panwar

Amorín

et al. 2013

Journal of Applied Physics

108

View full text Add to dashboard Cite

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“…In this respect, recent advancements on synthesis of good quality Pb-free piezoelectric single crystals of complex compositions with high functional properties is an exciting development. Notable mentions in this category include crystals of Li-doped potassium sodium niobate using the Bridgman method [24], (1−x)BaTiO 3−x CaTiO 3 using floating zone technique [25], (Ba (1−x) ,Ca x )(Ti (1−y) Zr y )O 3 by Chochralski method [26], (Ba (1−x) ,Ca x )(Ti (1−y) Zr y )O 3 by the flux-method [27], (Na 0.5 Bi 0.5 )TiO 3 -BaTiO 3 and (K,Na)(Nb,Ta)O 3 using the top-seeded solution growth (TSSG) method [23,[28][29][30], and (Na 0.5 Bi 0.5 )TiO 3 -BaTiO 3 -and (K,Na)(Nb)O 3 -based crystals using the seed-free solid state crystal growth technique [31][32][33]. The developments with regard to solid state crystal growth are particularly noteworthy, since they provide a cheaper alternative to growing crystals from melt.…”

Section: Characterization Of Multiscale Structural Mechanisms Using Dmentioning

confidence: 99%

Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction

Pramanick

2018

Crystals

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Abstract:In view of serious environmental concerns with traditional Pb-based piezoelectrics, the search for new Pb-free alternatives has intensified recently. A thorough investigation of structure-property relationships in Pb-free piezoelectrics is desired in order to design new material compositions with high electromechanical properties that can be operated over a broader range of conditions. Recent availability of high-quality single crystals has not only opened the possibility for achieving multifold enhancements in the electromechanical properties in this new class of materials, but has also provided opportunities to undertake fundamental studies on their structure-property relationships. In the following pages, I review some of the recent X-ray and neutron diffraction studies of Pb-free piezoelectric single crystals, which have provided novel insights into their multiscale stimuli-induced structural mechanisms, including phase transitions, nanoscale structural ordering, lattice instability, and domain re-orientation. Opportunities and challenges for future progress in this area of study are discussed.

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“…However, there is still no data in the literature dealing with the crystal growth process and the stabilization of the perovskite structure in BaTiO 3 -CaTiO 3 -BaZrO 3 pseudo-ternary system except for BCTZ relaxor crystal growth carried out recently by Zeng et al [30]. As no suitable seed with BCTZ composition was available, a 3-mm-thick iridium rod was used as a cold thermal point in order to initiate the nucleation and the growth of crystals.…”

Section: Experimental Procedures and Crystal Growthmentioning

confidence: 99%

Growth and Characterization of Lead-free Piezoelectric Single Crystals

et al. 2015

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Lead-free piezoelectric materials attract more and more attention owing to the environmental toxicity of lead-containing materials. In this work, we review our first attempts of single crystal grown by the top-seeded solution growth method of BaTiO3 substituted with zirconium and calcium (BCTZ) and (K0.5Na0.5)NbO3 substituted with lithium, tantalum, and antimony (KNLSTN). The growth methodology is optimized in order to reach the best compositions where enhanced properties are expected. Chemical analysis and electrical characterizations are presented for both kinds of crystals. The compositionally-dependent electrical performance is investigated for a better understanding of the relationship between the composition and electrical properties. A cross-over from relaxor to ferroelectric state in BCTZ solid solution is evidenced similar to the one reported in ceramics. In KNLSTN single crystals, we observed a substantial evolution of the orthorhombic-to-tetragonal phase transition under minute composition changes.

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Growth and characterization of lead-free Ba(1−x)CaxTi(1−y)ZryO3 single crystal

Cited by 24 publications

References 22 publications

Synthesis and characterization of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic

Synthesis and characterization of lead-free 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic

Characterization of Pb-Free KNbO3- and (Na,Bi)TiO3-Based Piezoelectric Single-Crystals Using X-ray and Neutron Diffraction

Growth and Characterization of Lead-free Piezoelectric Single Crystals

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