X-ray study of the PZT solid solutions near the morphotropic phase transition

Ari-Gur, Pnina; Benguigui, L.

doi:10.1016/0038-1098(74)90535-3

Cited by 121 publications

(26 citation statements)

References 4 publications

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“…Detailed structural characterization of this complex region will be the subject of future study and is expected to be challenging: e.g., the structure of PZT at and near the MPB remains the subject of controversy after many years of detailed study where both multiple and single phase models have been proposed. [12][13][14][15] The reduced lattice parameters ( ( /2) [ 16,17 ] and other Pbfree MPB systems (0.08 for NBT-KBT, [ 18 ] 0.01 for NBT-BTO [ 19 ] ). To examine the piezoelectric behavior, discs were poled and longitudinal piezoelectric coeffi cients ( .…”

Section: Doi: 101002/adma201405452mentioning

confidence: 99%

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties

et al. 2015

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(NBT), BaTiO 3 (BTO), and K 0.5 Bi 0.5 TiO 3 (KBT) are known but all have inferior properties to PZT. [ 2,3,5 ] Bi 3+ has a 6s 2 confi guration with crystal chemistry similar to that of Pb 2+ , and bismuthbased perovskites are attractive as they can offer high Curie and depolarization temperatures required for demanding application environments. [ 5,6 ] [ 9 ] which can be converted into a long-range polarization along this direction by the introduction of LaFeO 3 (LFO) which itself has antiferrodistortive [110] p displacements, although this orthorhombic O [110] The perovskite oxide lead zirconate titanate (PbZr 1− x Ti x O 3 ) (PZT) has extraordinary electromechanical properties at the morphotropic phase boundary (MPB), [ 1 ] making modifi ed PZT ceramics the basis for almost all actuators, sensors and related applications in use today. The MPB in the PZT solid solution occurs near x ≈ 0.48 [ 1 ] between the ferroelectric rhombohedral ( R 3 m , denoted as R [111] ) and tetragonal ( P 4 mm , denoted as T [001] ) phases, with polarizations lying along the [111] p body diagonal and [001] p edge of the primitive ≈ 4 Å ABO 3 perovskite unit cell, respectively. [1][2][3] The PZT phases are untilted and the R [111] and T [001] structures are described crystallographically, using a modifi ed Glazer notation, as a a a + , respectively, where the subscript indicates ferroelectric displacement and the superscript the nature of the octahedral tilting with respect to the primitive unit cell axes. [ 4 ] It is challenging to create an MPB in a bismuth-based lead-free system as it has proved diffi cult to prepare phases with polarization directed along the [001] p primitive cell edge in such materials. Several Pb-free MPB systems based on K 0.5 Na 0.5 NbO 3 , Na 0.5 Bi 0.5 TiO 3

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Section: Doi: 101002/adma201405452mentioning

confidence: 99%

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties

et al. 2015

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“…The position of the phase boundary and its thermodynamic background were the subject of numerous studies. [1][2][3][4][5][6][7][8][9] The phase boundary was found to be a coexistence region with a width dependent on the process parameters. 2,3,7, 10 Härdtl and Hennings 10 compared the width of the morphotropic phase boundary of ceramics with varied densities and observed a broadening of the coexistence region in PZT ceramics sintered to full density.…”

Section: Introductionmentioning

confidence: 99%

Size effect in low grain size neodymium doped PZT ceramics

Helbig

2007

Journal of the European Ceramic Society

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“…The tetragonal (T), rhombohedral (R) and tetragonal-rhombohedral phases were characterized and their lattice parameters were calculated. The rhombohedral lattice parameter was calculated on the assumption that the rhombohedral distortion was constant (unit cell angle  R = 89.9˚) [6,7]. In order to ensure an accurate determination of the lattice parameters, the X-ray peaks were recorded gradually with 0.01˚ steps.…”

Section: Methodsmentioning

confidence: 99%

“…Investigating the Pb(Zr x ,Ti 1-x )O 3 system has shown the existence of an almost temperature-independent morphotropic phase boundary at x = 0.535, which separates a rhombohedral phase from a tetragonal one. By means of X-ray diffracttion, the co-existence of the two phases over a range of compositions around MPB was demonstrated [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Piezoelectric Properties of Pb0.98Sm0.02[(Zry,Ti1–y)0.98(Fe1/23+,Nb1/25+)0.02]O3<

Kahoul¹,

Hamzioui²,

Abdessalem³

et al. 2012

MSA

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Nb  ) 0.02 ]O 3 ceramics system with the composition near the morphotropic phase boundary were investigated as a function of the Zr/Ti ratio by X-ray diffraction (XRD). Studies were performed on the samples prepared by solid state reaction for y = 0.47, 0.49, 051, 0.53, 0.55 and 0.57. Combined with piezoelectric properties results, it was consistently shown that an MPB exists between y = 0.51 and y = 0.55 in this system. When y < 0.51, the tetragonal phase dominates at ambient temperatures. In the range of y > 0.55, the rhombohedral phase dominates. Lattice parameters of the tetragonal phase and rhombohedral phase were found to vary with chemical composition. The average particle size ranged from 17.18 to 26.05 nm. The dielectric (ε = 1076), tanδ = 0.013 and piezoelectric properties (d 31 = 122 pC/N, kp = 0.631 and Qm = 462) obtained were maximum at y = 0.55 which could be suitable for possible electromechanical and energy harvesting applications.

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X-ray study of the PZT solid solutions near the morphotropic phase transition

Cited by 121 publications

References 4 publications

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties

Size effect in low grain size neodymium doped PZT ceramics

Synthesis and Piezoelectric Properties of Pb<sub>0.98</sub>Sm<sub>0.02</sub>[(Zr<sub>y</sub>,Ti<sub>1–y</sub>)<sub>0.98</sub>(Fe<sub>1/2</sub><sup>3+</sup>,Nb<sub>1/2</sub><sup>5+</sup>)<sub>0.02</sub>]O<sub>3<

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X-ray study of the PZT solid solutions near the morphotropic phase transition

Cited by 121 publications

References 4 publications

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi3/8Fe2/8Mg3/8O3–xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi3/8Fe2/8Mg3/8O3–xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties

Size effect in low grain size neodymium doped PZT ceramics

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Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties

Morphotropic Phase Boundary in the Pb‐Free (1 − x)BiTi_3/8Fe_2/8Mg_3/8O₃–xCaTiO₃ System: Tetragonal Polarization and Enhanced Electromechanical Properties