High-power piezoelectric behavior of acceptor-doped 〈001〉 and 〈111〉 textured piezoelectric ceramics

Haoyang Leng, Yongke Yan, Xiaotian Li, Sumanta Kumar Karan, Mark Fanton, Shashank Priya

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Piezoelectric ceramics with high piezoelectric co-efficient, d33, and mechanical quality factor, Qm, are required in high-power applications. 〈001〉 and 〈111〉 textured Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics were fabricated using templated grain growth method and their high-power electromechanical properties were characterized. It is shown that 〈001〉 textured ceramics possess higher d33 compared to random and 〈111〉 textured counterparts, while the Qm is strongly enhanced in 〈111〉 textured ceramics due to less favored polarization rotation. MnO2 doping is shown to further improve the Qm values for both 〈001〉 and 〈111〉 textured ceramics because of the restricted polarization switching induced by the defect dipole. Doped 〈001〉 textured ceramics can exhibit the high d33 and moderate Qm (d33 = 725 pC N−1, Qm = 716) in comparison with 〈111〉 textured ceramics exhibiting low d33 and high Qm (d33 = 350 pC N−1, Qm = 1495). Owing to the combinatory soft and hard piezoelectric properties, the doped 〈001〉 textured ceramics exhibit 1.5× higher vibration velocity (∼0.90 m s−1) in comparison with commercial hard PZTs. Interestingly, a slightly higher vibration velocity (∼0.94 m s−1) can be obtained in doped 〈111〉 textured ceramics, which is mainly attributed to the high Qm and low elastic compliance s11. These results demonstrate the promise of textured piezoelectric ceramics for high-power applications.

Original languageEnglish (US)
Pages (from-to)2229-2240
Number of pages12
JournalJournal of Materials Chemistry C
Volume11
Issue number6
DOIs
StatePublished - Nov 29 2022
Externally publishedYes

Bibliographical note

Funding Information:
Y. Y. and H. L. acknowledge the financial support from DARPA through award number HR00111920001. X. L. acknowledges the support through National Science Foundation through the award number DMR-1936432. S. K. K. acknowledges the support through National Science Foundation through the award number 1904811. S. P. acknowledges the support through USDA NIFA through grant number 2019-67021-28991.

Publisher Copyright:
© 2023 The Royal Society of Chemistry.

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