Templated grain growth of high coercive field CuO‐doped textured PYN‐PMN‐PT ceramics

Brova, Michael J.; Watson, Beecher H.; Walton, Rebecca L.; Kupp, Elizabeth R.; Fanton, Mark A.; Meyer, Richard J.; Messing, Gary L.

doi:10.1111/jace.17349

Cited by 14 publications

(6 citation statements)

References 24 publications

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“…The ε r in textured ceramics is almost twice as much as that in untextured ceramics, which may be due to the presence of the “4R” engineered domain structure in [001]‐oriented where domain rotation is much easier. Since of the presence of orientation, the permittivity and longitudinal piezoelectric constant d 33 poled along the [00 1] or [011] direction are higher than those of the [111] direction in rhombohedral phase 28,36 Besides, the increase of tanδ for textured ceramic may be attributed to the increased non‐180° domain wall motion associated with the enhanced strain behavior 37 …”

Section: Resultsmentioning

confidence: 99%

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

et al. 2023

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[001] textured 0.40BiScO3‐0.60PbTiO3‐0.125 mol%Nb5+ (BS‐60PT‐0.125Nb) high‐temperature piezoelectric ceramics were synthesized using templated grain growth process. A high texture degree F001 of 99% was obtained using 2 vol% BaTiO3 (BT) templates. The piezoelectric charge constant d33 and the unipolar strain under 40 kV cm−1 at room temperature for the textured ceramics are 646 pC N−1 and 0.36%, respectively, which is over two times as those for untextured ceramics (∼243 pC N−1 and 0.17%). The electrostriction Q33 value of the textured sample remarkably increased from 0.034 m4 C−2 to 0.068 m4 C−2 under 30 kV cm−1, showing a twice higher than untextured. Compared with random ceramics, the improvement piezoelectric response of the textured ceramics is primarily attributed to the increase of the dielectric constant εr and electrostriction coefficient Q33 along [001] orientation, which is originating from the anisotropy of piezoelectricity. The BS‐60PT‐0.125Nb textured ceramics have large piezoelectric response and ultrahigh electrostriction with high temperature stability (high depolarization temperature Td of ∼360°C and high Curie temperature Tc of 421°C), showing great potential for the piezoelectric applications at high temperatures.

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Section: Resultsmentioning

confidence: 99%

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

et al. 2023

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“…Although various templates of BaTiO 3 , 4,5 SrTiO 3 , 6,7 Bi 4 Ti 3 O 12 , 8,9 PbTiO 3 , 10,11 etc., 12,13 have been reported to be useful for achievement of superior piezoelectric ceramics; overdosed templates, because heterogeneous templates act as impurities, have resulted in deterioration of piezoelectricity in matrix ceramics. In particular, the plate‐like BaTiO 3 template has been widely utilized for PbTiO 3 (PT)‐based piezoelectric ceramics such as Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 , 14–16 Pb(In 1/2 Nb 1/2 )O 3 ‐Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 , 17,18 Pb(Yb 1/2 Nb 1/2 )O 3 ‐Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 , 19,20 Pb[(Zn 0.4 Ni 0.6 ) 1/3 Nb 2/3 ]O 3 ‐PbZrO 3 ‐PbTiO 3 , 21 and Pb(Ni 1/3 Nb 2/3 )O 3 ‐PbZrO 3 ‐PbTiO 3 22 ceramics to achieve textured structures. However, given the heterogeneity between the template and matrix ceramic, PT platelets are strongly recommended to realize better quality texture and piezoelectric properties of PT‐based piezoelectric ceramics.…”

Section: Introductionmentioning

confidence: 99%

Morphological evolution of PbTiO₃ microstructures synthesized by topochemical microcrystal conversion

Kwon

Nahm

et al. 2022

J Am Ceram Soc.

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PbTiO3 (PT) microstructures were fabricated by topochemical microcrystal conversion (TMC) and their morphological evolution was investigated with variation of synthesis temperature and relative molar ratio of reactants. Using molten salt synthesis, Aurivillius phase of PbBi4Ti4O15 (PBiT) synthesized at 1050°C was prepared as precursor. Large plate‐like PT microstructures with lengths of hundreds of micrometer were optimally obtained when the relative ratio (x) of (PbCO3)2·Pb(OH)2 to PBiT in reactants was 6. In addition, relatively homogeneous PT platelets were achieved at the annealing temperature of 1050°C by TMC; these materials are probably suitable for use in templated grain growth. However, a Pb‐deficient secondary phase of PbTi3O7 formed in cases of low x values of less than 4 and low annealing temperatures of less than 1050°C. The porous PT pellets, orthogonally assembled by numerous PT platelets, were achieved by increasing temperature to 1100°C. Further increase in temperature to 1150°C could lead to partial formation of denser PT blocks.

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“…Lead‐based ferroelectrics such as PZT and Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 (PMN‐PT) have been well studied in their ceramic and single crystal forms due to their high piezoelectric responses that are desirable for sensor and actuator applications 6,25–32 . Yet, recent studies of ternary compositions such as Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbZrO 3 ‐PbTiO 3 (PMN‐PZ‐PT), Pb(Sc 1/2 Nb1/2)O 3 ‐PbZrO 3 ‐PbTiO 3 (PSN‐PZ‐PT), Pb(In 1/2 Nb 1/2 )O 3 ‐Pb(Mg 1/3 Nb 2/3 )O 3 ‐PbTiO 3 (PIN‐PMN‐PT) have found that they generally exhibit superior piezoelectric response and temperature stability than binary compositions 33–36 . This paper focuses on studying the electromechanical mechanism in PMN‐PT textured ceramics, as the piezoelectric properties and structure of the system in ceramic and single crystal form are more thoroughly understood than ternary compositions, making a comparison to the changes imposed from crystallographic texture more clear.…”

Section: Introductionmentioning

confidence: 99%

Self‐poling and electromechanical response of crystallographically textured PMN‐32PT prepared by templated grain growth

et al. 2022

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Crystallographic texturing of ferroelectrics is known to improve the piezoelectrics response due to the alignment of optimal grain orientations in polycrystalline materials. Using high-energy x-ray diffraction, a ferroelastic self-poling effect was observed in crystallographically textured 0.68 Pb(Mg 1/3 Nb 2/3 )O 3 − 0.32PbTiO 3 ceramic. It is shown that the BaTiO 3 platelet templates used to induce crystallographic texture imposed a biaxial strain causing ferroelastic domains to re-orient parallel to the template plate normal. In-situ high-energy x-ray diffraction was then used to characterize the response mechanisms of the material with applied electric fields. The textured ceramic produced a (111) lattice strain of 0.13% in the remanent state, and a 0.16% (111) unipolar lattice strain at 2 kV/mm while the untextured ceramic had a higher (111) lattice strain of 0.18% in the remanent state and a smaller (111) unipolar lattice strain at 2 kV/mm of 0.096%. This contrast in the strain magnitudes can be linked to the self-poling effect. A strain mechanism incorporating the self-poling effect is proposed, furthering our understanding of how crystallographic texture impacts the piezoelectric properties and providing a pathway for engineering the self-poling effect to further enhance material response.

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Templated grain growth of high coercive field CuO‐doped textured PYN‐PMN‐PT ceramics

Cited by 14 publications

References 24 publications

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

Morphological evolution of PbTiO₃ microstructures synthesized by topochemical microcrystal conversion

Self‐poling and electromechanical response of crystallographically textured PMN‐32PT prepared by templated grain growth

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Templated grain growth of high coercive field CuO‐doped textured PYN‐PMN‐PT ceramics

Cited by 14 publications

References 24 publications

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO3‐PbTiO3 high‐temperature piezoelectric ceramics

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO3‐PbTiO3 high‐temperature piezoelectric ceramics

Morphological evolution of PbTiO3 microstructures synthesized by topochemical microcrystal conversion

Self‐poling and electromechanical response of crystallographically textured PMN‐32PT prepared by templated grain growth

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Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

Achieving large piezoelectric response and ultrahigh electrostriction in [001] textured BiScO₃‐PbTiO₃ high‐temperature piezoelectric ceramics

Morphological evolution of PbTiO₃ microstructures synthesized by topochemical microcrystal conversion