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Research Article
Meng Xie
Shanghai Institute of Ceramics Chinese Academy of Sciences
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6612-903X
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In this work, (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 (abbreviated as PLZT, x = 0.01, 0.03, 0.04, 0.06, 0.07) ceramics are designed on the base of chemical composition modification and prepared by solid-state reaction. The effect of composition, temperature, and hydrostatic pressure on ferroelectric-antiferroelectric (FE-AFE) phase transition is investigated. It is obtained that phase transition from ferroelectric rhombohedral phase to antiferroelectric tetragonal phase as a function of La3+ doping content, especially, the PLZT ceramics of x = 0.04, 0.06, and 0.07 are the coexistence of FE-AFE phase. It is also found the FE-AFE phase transition driven by increased temperature in poled PLZT ceramics (x = 0.04, 0.06). Furthermore, static charges density (Pr) of PLZT (x = 0.04, 0.06) are decreased from 29.11 µC/cm2 and 31.52 µC/cm2 to 19.76 {\mu }C/cm2, 6.45 {\mu }C/cm2 under 400 MPa hydrostatic pressure due to the pressure-induced FE-AFE phase transition. The depolarization rates are 32.12% and 79.54%, respectively. Meanwhile, the phase diagram of (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 ceramics is acquired roughly. These results provide guidance for the engineering application of (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 ceramics.
Keywords
Phase transition, PLZT, ferroelectrics, anti-ferroelectrics
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Research Article
Meng Xie
Shanghai Institute of Ceramics Chinese Academy of Sciences
Corresponding Author
ORCiD: https://orcid.org/0000-0002-6612-903X
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 06 May, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Ceramics
License:
This work is licensed under a CC BY 4.0 License. Read Full License
In this work, (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 (abbreviated as PLZT, x = 0.01, 0.03, 0.04, 0.06, 0.07) ceramics are designed on the base of chemical composition modification and prepared by solid-state reaction. The effect of composition, temperature, and hydrostatic pressure on ferroelectric-antiferroelectric (FE-AFE) phase transition is investigated. It is obtained that phase transition from ferroelectric rhombohedral phase to antiferroelectric tetragonal phase as a function of La3+ doping content, especially, the PLZT ceramics of x = 0.04, 0.06, and 0.07 are the coexistence of FE-AFE phase. It is also found the FE-AFE phase transition driven by increased temperature in poled PLZT ceramics (x = 0.04, 0.06). Furthermore, static charges density (Pr) of PLZT (x = 0.04, 0.06) are decreased from 29.11 µC/cm2 and 31.52 µC/cm2 to 19.76 {\mu }C/cm2, 6.45 {\mu }C/cm2 under 400 MPa hydrostatic pressure due to the pressure-induced FE-AFE phase transition. The depolarization rates are 32.12% and 79.54%, respectively. Meanwhile, the phase diagram of (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 ceramics is acquired roughly. These results provide guidance for the engineering application of (Pb1 − 1.5xLax)(Zr0.80Ti0.20)O3 ceramics.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
This is a list of supplementary files associated with this preprint. Click to download.
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