Bremecker, Daniel ; Lalitha, K. V. ; Teuber, Siegfried ; Koruza, Jurij ; Rödel, Jürgen (2023)
Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃.
In: Journal of the American Ceramic Society, 2021, 105 (2)
doi: 10.26083/tuprints-00020986
Article, Secondary publication, Publisher's Version
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Abstract
A series of morphotropic phase boundary (MPB) compositions of (1–x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ (x = 0.05, 0.055, 0.06, 0.065, 0.07), with and without 0.5 mol% Zn‐doping was synthesized using the solid‐state route. The samples were characterized using X‐ray diffraction, dielectric analysis, and electromechanical measurements (piezoelectric d₃₃ coefficient, coupling factor kp, mechanical quality factor Qm, and internal bias field Ebias). The increase in the ferroelectric‐relaxor transition temperature upon Zn‐doping was accompanied by a shift of the MPB toward the Na₁/₂Bi₁/₂TiO₃‐rich side of the phase diagram. Higher tetragonal phase fraction and increased tetragonal distortion were noted for Zn‐doped (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. In addition, ferroelectric hardening and the presence of an internal bias field (Ebias) were observed for all doped compositions. The piezoelectric constant d₃₃ and the coupling coefficient kp decreased by up to ∼30%, while a 4‐ to 6‐fold increase in Qm was observed for the doped compositions. Apart from establishing a structure–property correlation, these results highlight the chemically induced shift of the phase diagram upon doping, which is a crucial factor in material selection for optimal performance and commercialization.
| Item Type: | Article |
|---|---|
| Erschienen: | 2023 |
| Creators: | Bremecker, Daniel ; Lalitha, K. V. ; Teuber, Siegfried ; Koruza, Jurij ; Rödel, Jürgen |
| Type of entry: | Secondary publication |
| Title: | Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ |
| Language: | English |
| Date: | 11 December 2023 |
| Place of Publication: | Darmstadt |
| Year of primary publication: | 2021 |
| Place of primary publication: | Oxford |
| Publisher: | Wiley-Blackwell |
| Journal or Publication Title: | Journal of the American Ceramic Society |
| Volume of the journal: | 105 |
| Issue Number: | 2 |
| DOI: | 10.26083/tuprints-00020986 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20986 |
| Corresponding Links: | |
| Origin: | Secondary publication DeepGreen |
| Abstract: | A series of morphotropic phase boundary (MPB) compositions of (1–x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃ (x = 0.05, 0.055, 0.06, 0.065, 0.07), with and without 0.5 mol% Zn‐doping was synthesized using the solid‐state route. The samples were characterized using X‐ray diffraction, dielectric analysis, and electromechanical measurements (piezoelectric d₃₃ coefficient, coupling factor kp, mechanical quality factor Qm, and internal bias field Ebias). The increase in the ferroelectric‐relaxor transition temperature upon Zn‐doping was accompanied by a shift of the MPB toward the Na₁/₂Bi₁/₂TiO₃‐rich side of the phase diagram. Higher tetragonal phase fraction and increased tetragonal distortion were noted for Zn‐doped (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. In addition, ferroelectric hardening and the presence of an internal bias field (Ebias) were observed for all doped compositions. The piezoelectric constant d₃₃ and the coupling coefficient kp decreased by up to ∼30%, while a 4‐ to 6‐fold increase in Qm was observed for the doped compositions. Apart from establishing a structure–property correlation, these results highlight the chemically induced shift of the phase diagram upon doping, which is a crucial factor in material selection for optimal performance and commercialization. |
| Uncontrolled Keywords: | lead‐free, morphotropic phase boundary, Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃, piezoceramic, Zn‐doping |
| Status: | Publisher's Version |
| URN: | urn:nbn:de:tuda-tuprints-209866 |
| Classification DDC: | 500 Science and mathematics > 540 Chemistry 600 Technology, medicine, applied sciences > 660 Chemical engineering |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials |
| Date Deposited: | 11 Dec 2023 14:05 |
| Last Modified: | 12 Dec 2023 09:27 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Influence of Zn²⁺ doping on the morphotropic phase boundary in lead‐free piezoelectric (1 – x)Na₁/₂Bi₁/₂TiO₃‐xBaTiO₃. (deposited 11 Dec 2023 14:05) [Currently Displayed]
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