Acoustic emission study of domain wall motion and phase transition in (1 - x - y)Bi0.5Na0.5TiO3-xBaTiO3-yK0.5Na0.5NbO3 lead-free piezoceramics

E. Dul'kin; E. Mojaev; M. Roth; Wook Jo; T. Granzow

doi:10.1016/j.scriptamat.2008.10.014

Acoustic emission study of domain wall motion and phase transition in (1 - x - y)Bi_0.5Na_0.5TiO₃-xBaTiO₃-yK_0.5Na_0.5NbO₃ lead-free piezoceramics

E. Dul'kin
, E. Mojaev
, M. Roth
, Wook Jo
, T. Granzow^*

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The ferroelectric strain hysteresis and acoustic emissions of lead-free (1 - x - y)Bi_0.5Na_0.5TiO₃-xBaTiO₃-yK_0.5Na_0.5NbO₃ ceramics were investigated at room temperature. The field-induced antiferroelectric ↔ ferroelectric phase transition as well as the ferroelectric coercive field were successfully detected. Although the strain was largest for x = 0.06 and y = 0.02, this composition showed the lowest acoustic emission signals, making it an interesting material for ultrasonic transducer applications.

Original language	English
Pages (from-to)	251-253
Number of pages	3
Journal	Scripta Materialia
Volume	60
Issue number	4
DOIs	https://doi.org/10.1016/j.scriptamat.2008.10.014
State	Published - Feb 2009

Bibliographical note

Funding Information:
This work was supported by the DFG (Project A1, SFB 595).

Keywords

Acoustic emission
Antiferroelectric phase transition
Ferroelectric hysteresis
Lead-free piezoelectrics

Access to Document

10.1016/j.scriptamat.2008.10.014

Cite this

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title = "Acoustic emission study of domain wall motion and phase transition in (1 - x - y)Bi0.5Na0.5TiO3-xBaTiO3-yK0.5Na0.5NbO3 lead-free piezoceramics",

abstract = "The ferroelectric strain hysteresis and acoustic emissions of lead-free (1 - x - y)Bi0.5Na0.5TiO3-xBaTiO3-yK0.5Na0.5NbO3 ceramics were investigated at room temperature. The field-induced antiferroelectric ↔ ferroelectric phase transition as well as the ferroelectric coercive field were successfully detected. Although the strain was largest for x = 0.06 and y = 0.02, this composition showed the lowest acoustic emission signals, making it an interesting material for ultrasonic transducer applications.",

keywords = "Acoustic emission, Antiferroelectric phase transition, Ferroelectric hysteresis, Lead-free piezoelectrics",

author = "E. Dul'kin and E. Mojaev and M. Roth and Wook Jo and T. Granzow",

note = "Funding Information: This work was supported by the DFG (Project A1, SFB 595).",

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doi = "10.1016/j.scriptamat.2008.10.014",

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AU - Dul'kin, E.

AU - Mojaev, E.

AU - Roth, M.

AU - Jo, Wook

AU - Granzow, T.

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AB - The ferroelectric strain hysteresis and acoustic emissions of lead-free (1 - x - y)Bi0.5Na0.5TiO3-xBaTiO3-yK0.5Na0.5NbO3 ceramics were investigated at room temperature. The field-induced antiferroelectric ↔ ferroelectric phase transition as well as the ferroelectric coercive field were successfully detected. Although the strain was largest for x = 0.06 and y = 0.02, this composition showed the lowest acoustic emission signals, making it an interesting material for ultrasonic transducer applications.

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KW - Antiferroelectric phase transition

KW - Ferroelectric hysteresis

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