High temperature piezoelectric BiScO3–PbTiO3 synthesized by mechanochemical methods

Algueró, Miguel; Ramos, P.; Jiménez, Ricardo; Amorín, Harvey; Vila, E.; Castro, A.

doi:10.1016/j.actamat.2011.10.050

Cited by 48 publications

(41 citation statements)

References 39 publications

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“…This figure is typical of electronic conduction rather than ionic, and it is proposed to be associated with hole conduction within the valence band, specifically with electron hopping between Mn 2+ and Mn 3+ at the B-site. Indeed, a similar conduction process has been described for BiScO3-PbTiO3 ceramics processed from powder synthesized by mechanochemical activation in stainless steel media [36], for which presence of Fe substituting for Sc has been described [5].…”

Section: ••mentioning

confidence: 59%

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Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Berganza

Pascual-González

Amorín

et al. 2016

Journal of the European Ceramic Society

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BiScO3-PbTiO3 is used as a model system of BiMO3-PbTiO3 perovskite solid solutions with enhanced electromechanical response at ferroelectric morphotropic phase boundaries, and high Curie temperature to demonstrate specific point defect engineering for high power operation. The objective is to obtain a range of piezoelectric ceramics comparable to hard Pb(Zr,Ti)O3 materials, optimized for the different applications. In this work, a comprehensive study of Mn substitution for Sc is provided. Care is taken to isolate the effects of the point defects from those of concomitant structural and microstructural changes that have been previously described after MnO2 addition.Results strongly suggest that Mn substitution results in the formation of (MnSc'-VOcomplexes that effectively clamp domain walls. This is the same mechanism responsible of hardening in Pb(Zr,Ti)O3. Indeed, Bi0.36Pb0.64Sc0.36-x MnxTi0.64O3 with x=0.02 is shown to be a high sensitivity piezoelectric with strongly reduced losses, suitable for high power operation between 200 and 400 ºC.

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Section: ••mentioning

confidence: 59%

“…A field of 4 kV mm -1 was applied at 100 ºC for 15 min, and maintained during cooling down to 40 ºC. These are standard conditions for the poling of BiScO3-PbTiO3 ceramics [1,2,5]. The longitudinal piezoelectric coefficient d33 was then measured 24 h after the poling step with a Berlincourt type meter.…”

Section: Methodsmentioning

confidence: 99%

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Berganza

Pascual-González

Amorín

et al. 2016

Journal of the European Ceramic Society

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“…It has been proposed after an study of the strongly related ternary BiScO 3 -BiFeO 3 -PbTiO 3 that a Vegard-type relationship exists for the MPB compositions, so as the line that joins the MPBs of two binary BiMO 3 -PbTiO 3 and BiM 0 O 3 -PbTiO 3 systems across the phase diagram of the corresponding BiMO 3 -BiM 0 O 3 -PbTiO 3 ternary is a line of MPBs. 40 Indeed, this is the case for BiFeO 3 -BiMnO 3 -PbTiO 3 , for which phase coexistence, initially between a rhombohedral R3c and tetragonal P4 mm polymorphic phases that subsequently evolves towards a coexistence between tetragonal P4 mm and orthorhombic Pnma ones, has been recently described along such a line. 78 This is illustrated in Fig.…”

Section: Final Considerations and Future Trendsmentioning

confidence: 92%

“…Like the differences in c/a, this is most probably related to the remnant microcrystalline strain; that is, a high level of perovskite disorder characteristic of the mechanosynthesis, which is not fully removed during subsequent thermal treatments, and that is thought to play a major role in the stabilization of the low tolerance factor pervoskites. 29,40 The actual symmetry of the pseudocubic phase was studied on highly crystalline samples of x ¼ 0:5 and 0.6 by precession electron diffraction, and found to be orthorhombic Pnma. Details of the space group determination can be found elsewhere.…”

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confidence: 99%

Perovskite solid solutions with multiferroic morphotropic phase boundaries and property enhancement

et al. 2016

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Recently, large phase-change magnetoelectric response has been anticipated by a first-principles investigation of phases in the BiFeO 3 -BiCoO 3 perovskite binary system, associated with the existence of a discontinuous morphotropic phase boundary (MPB) between multiferroic polymorphs of rhombohedral and tetragonal symmetries. This might be a general property of multiferroic phase instabilities, and a novel promising approach for room temperature magnetoelectricity. We review here our current investigations on the identification and study of additional material systems, alternative to BiFeO 3 -BiCoO 3 that has only been obtained by high pressure synthesis. Three systems, whose phase diagrams were, in principle, liable to show multiferroic MPBs have been addressed: the BiMnO 3 -PbTiO 3 and BiFeO 3 -PbTiO 3 binary systems, and the BiFeO 3 -BiMnO 3 -PbTiO 3 ternary one. A comprehensive study of multiferroism across different solid solutions was carried out based on electrical and magnetic characterizations, complemented with mechanical and electromechanical measurements. An in-depth structural analysis was also accomplished when necessary.

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“…Based on the fact that PbTiO 3 is toxic and volatile in nature and not environmental friendly many reduced lead content ferroelectric materials has been investigated, such as 3 and BaSnO 3 −xPbTiO 3 [9][10][11][12]. Isovalent or heterovalent substitution on Pb 2+ site, lattice anisotropy is reduced.…”

Section: Introductionmentioning

confidence: 99%

Structural and dielectric properties of Pb(1−x)(Na0.5Sm0.5) x TiO3 ceramics

Yadav

Anita

Kumar

et al. 2017

J Mater Sci: Mater Electron

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Abstract:A correlation between structure and vibrational properties related to a ferroelectric to paraelectric phase transition in perovskite Pb (1-x) (Na 0.5 Sm 0.5 ) x TiO 3 (0≤x≤0.5) (PNST-x) polycrystalline powders is discussed. Substitution leads to reduction of tetragonality which is associated with a shift of the phase transition to lower temperatures. The nature of the phase transition gets diffused with increasing substitution.Keywords: Structural properties, Raman spectroscopy, Dielectric, Phase transition. IntroductionPbTiO 3 is known to be a strong ferroelectric perovskite compound. A structural phase transition from tetragonal (P4mm) to cubic (Pm3m) phase at 763K is observed in PbTiO 3 . Tetragonality, measured by c/a ratio is frequently related to ferroelectric properties. For PbTiO 3 , c/a ratio is ~1.06 at room temperature [1][2][3][4][5]. Properly substituted PbTiO 3 has different applications as capacitors, nonvolatile memories, ultrasonic transducers, pyroelectric infrared sensors, piezoelectric actuators due to their highly anisotropic nature of elastic, piezoelectric, and electro-optic properties etc. [6][7][8].Physical properties and device applications of ferroelectric perovskite (ABO 3 ) compounds like PbTiO 3 and BaTiO 3 have been studied extensively due to their technological importance. Based on the fact that PbTiO 3 is toxic and volatile in nature and not environmental friendly many reduced lead content ferroelectric materials has been investigated, such as

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High temperature piezoelectric BiScO3–PbTiO3 synthesized by mechanochemical methods

Cited by 48 publications

References 39 publications

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Point defect engineering of high temperature piezoelectric BiScO3–PbTiO3 for high power operation

Perovskite solid solutions with multiferroic morphotropic phase boundaries and property enhancement

Structural and dielectric properties of Pb(1−x)(Na0.5Sm0.5) x TiO3 ceramics

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