Effect of pressure on electric generation of PZT(30/70) and PZT(52/48) ceramics near phase transition pressure

Cho, Kyung Ho; Seo, Chang Eui; Choi, Y. S.; Ko, Young Ho; Kim, Kwang Joo

doi:10.1016/j.jeurceramsoc.2011.08.034

Cited by 12 publications

(6 citation statements)

References 19 publications

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“…(2.2). For this calculation, the observed 20 Raman shifts data and the observed 38 Table 3 in the pressure intervals indicated. The calculated and observed 20 values of the Raman shifts of the Raman modes in PZT (x ¼ 0:48) were given in Fig.…”

Section: Calculations and Resultsmentioning

confidence: 99%

“…By following our recent work, 37 in this study the isothermal Grüneisen parameters of the observed 20 Raman modes in PZT ceramic (x ¼ 0:48) were determined by using the V-P relation 38 of this ceramic at room temperature close to the monoclinic-cubic phase transition pressure of P C ¼ 5 GPa. This V-P relation 38 for PZT ceramic (x ¼ 0:48) was also used to predict the isothermal compressibility κ T of this ceramic as a function of pressure up to the 17 GPa at T ¼ 298 K. By using the definition of the isothermal Grüneisen parameter γ T ðPÞ, the pressure dependences of the Raman shifts for the observed modes 20 in PZT ceramic studied have been calculated. Also, the thermal expansion α P and the specific heat C P À C V of PZT (x ¼ 0:48) ceramic were predicted as a function of pressure by using the observed 20 P-T phase diagram of this crystal close to the monoclinic-cubic transition.…”

Section: Introductionmentioning

confidence: 99%

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Raman wavenumbers calculated as a function of pressure from the mode Grüneisen parameter of PZT (x=0.48) ceramic close to the monoclinic-cubic transition

Kiraci

2019

J. Adv. Dielect.

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The isothermal mode Grüneisen parameter [Formula: see text] of some Raman modes in [Formula: see text]TixO3 (PZT, [Formula: see text]) were calculated as a function of pressure by means of the observed pressure-dependent volume data of PZT ([Formula: see text]) crystal from the literature at room temperature of 298[Formula: see text]K. Those calculated values of [Formula: see text] were then used to compute the pressure dependence of the Raman modes in PZT ([Formula: see text]) ceramic studied here. The observed and calculated values of the Raman wavenumbers in PZT were in good agreement, which indicates that the isothermal mode Grüneisen parameter can also be used to predict the pressure-dependent wavenumbers of some other perovskite-type crystals. Additionally, the pressure dependence of the thermodynamic quantities such as isothermal compressibility [Formula: see text], thermal expansion [Formula: see text] and the specific heat [Formula: see text] of PZT ([Formula: see text]) ceramic were predicted at constant temperature of 298[Formula: see text]K. Here, the experimentally measurable thermodynamic quantities calculated for PZT ([Formula: see text]) ceramics provide theoretically a significant opportunity for testing.

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Section: Calculations and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Raman wavenumbers calculated as a function of pressure from the mode Grüneisen parameter of PZT (x=0.48) ceramic close to the monoclinic-cubic transition

Kiraci

2019

J. Adv. Dielect.

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“…The domain motion is delayed at a high loading rate, thus resulting in a lower released polarization than that at a low loading rate. When the pressure is increased to >700 MPa, an FE–paraelectric (FE–PE) phase transition occurs 55,56 . However, in the case of PZT95/5 ceramics, a notable feature is the coexistence of four phases, including FR LTR , FR HTR , and AFE tetragonal phase (AFE T ) and AFE O , in the region of 0.3–0.4 GPa and 50–100°C.…”

Section: Methodsmentioning

confidence: 99%

“…When the pressure is increased to >700 MPa, an FE-paraelectric (FE-PE) phase transition occurs. 55,56 However, in the case of PZT95/5 ceramics, a notable feature is the coexistence of four phases, including FR LTR , FR HTR , and AFE tetragonal phase (AFE T ) and AFE O , in the region of 0.3-0.4 GPa and 50-100 • C. The pressure-driven FE-AFE phase transition at approximately 270 MPa depolarizes all the surfacebound charges owing to the zero net polarization of the AFE phase, as discussed above. However, it has been discovered by neutron diffraction that the volume contraction at the FE R -AFE O transition results in the retained minority FE R phase being "clamped," which is attributed to the sample expanded slightly along the a axis slightly and contracted along c axis at the transition.…”

Section: Pzt Ceramicsmentioning

confidence: 99%

Pressure‐driven phase transition and energy conversion in ferroelectrics: Principles, materials, and applications

et al. 2023

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The pressure‐driven explosive energy‐conversion (EEC) effect of ferroelectric (FE) materials has been extensively studied in scientific research and high‐tech applications owing to its high pulse‐power output capability. The fundamental principle of this effect is pressure‐driven phase transition and depolarization in FE materials, accompanied by discharging behavior from the charge release upon pressure loading. Pb(Zr,Ti)O3 has been an excellent example of a materials exhibiting these properties. However, recent investigations have been focused on developing other lead‐based or lead‐free materials with a higher energy‐storage ability and better temperature stability. In this article, we review the recent progress achieved in the past decades on different types of lead‐based and lead‐free ceramics, single crystals, and multilayer films, based on their unique pressure‐driven phase transition and energy‐conversion properties. Their pulse power discharging performance under actual shock‐wave compression is also summarized, followed by a detailed discussion of the failure mechanism under shock‐wave compression. Finally, several issues and perspectives are proposed for future investigation in this area. All these not only assist in the design of new materials for high‐performance EEC but are also helpful for the practical application of these promising materials in pulse‐power technologies.

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“…The modified PZT (PbZr 1−x Ti x O 3 ) materials with perovskite structures have been practically the most widely known and widely used ones for many years [18][19][20][21][22][23][24]. The lead lanthanum zirconate titanate (PLZT) ceramic is a well-known perovskite material, too, with the general chemical formula of Pb 1−x La x (Zr y Ti 1−y ) 1−0.25x V B 0.25x O 3 .…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of the Ferroelectric-Ferromagnetic PLZT-Ferrite Composites

et al. 2018

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The paper presents the technology of ferroelectric-ferromagnetic ceramic composites obtained from PLZT powder (the chemical formula Pb 0.98 La 0.02 (Zr 0.90 Ti 0.10) 0.995 O 3) and ferrite powder (Ni 0.64 Zn 0.36 Fe 2 O 4), as well as the results of X-ray powder-diffraction data (XRD) measurement, microstructure, dielectric, ferroelectric, and magnetic properties of the composite samples. The ferroelectric-ferromagnetic composite (P-F) was obtained by mixing and the synthesis of 90% of PLZT and 10% of ferrite powders. The XRD test of the P-F composite shows a two-phase structure derived from the PLZT component (strong peaks) and the ferrite component (weak peaks). The symmetry of PLZT was identified as a rhombohedral ferroelectric phase, while the ferrite was identified as a spinel structure. Scanning electron microscope (SEM) microstructure analysis of the P-F ceramic composites showed that fine grains of the PLZT component surrounded large ferrite grains. At room temperature P-F composites exhibit both ferroelectric and ferromagnetic properties. The P-F composite samples have lower values of the maximum dielectric permittivity at the Curie temperature and a higher dielectric loss compared to the PLZT ceramics, however, the exhibit overall good multiferroic properties.

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Effect of pressure on electric generation of PZT(30/70) and PZT(52/48) ceramics near phase transition pressure

Cited by 12 publications

References 19 publications

Raman wavenumbers calculated as a function of pressure from the mode Grüneisen parameter of PZT (x=0.48) ceramic close to the monoclinic-cubic transition

Raman wavenumbers calculated as a function of pressure from the mode Grüneisen parameter of PZT (x=0.48) ceramic close to the monoclinic-cubic transition

Pressure‐driven phase transition and energy conversion in ferroelectrics: Principles, materials, and applications

Microstructure and Properties of the Ferroelectric-Ferromagnetic PLZT-Ferrite Composites

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