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Evaluation of domain wall motion during polymorphic phase transition in (K, Na)NbO3-based piezoelectric ceramics by nonlinear response measurements
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10.1063/1.3553857
/content/aip/journal/jap/109/5/10.1063/1.3553857
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/5/10.1063/1.3553857
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) Temperature dependence of the relative dielectric permittivity (ɛ) and dielectric loss (tan δ) of unpoled KNN-0.05LT ceramics measured at 1, 10, and 100 kHz. The inset shows the details of ɛ and tan δ from 50–150 oC.

Image of FIG. 2.
FIG. 2.

(Color online) The typical measured and calculated P-E hysteresis loops for poled KNN-0.05LT ceramics during the polymorphic phase transition: (a) at 90 oC and (b) at 100 oC. The measured and the calculated loops are in general agreement with each other.

Image of FIG. 3.
FIG. 3.

(Color online) The large signal dielectric permittivity as a function of the amplitude of electric field for (a) poled and (b) unpoled samples under several temperatures.

Image of FIG. 4.
FIG. 4.

(Color online) Temperature dependence of (a) the dielectric Rayleigh coefficient (), (b) the initial dielectric permittivity (), and (c) the ratio for both poled and unpoled KNN-0.05LT ceramics.

Image of FIG. 5.
FIG. 5.

(Color online) Summary of the temperature dependence of the initial dielectric permittivity () and the dielectric Rayleigh coefficient () for (a) poled and (b) unpoled KNN-0.05LT ceramics.

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/content/aip/journal/jap/109/5/10.1063/1.3553857
2011-03-15
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Evaluation of domain wall motion during polymorphic phase transition in (K, Na)NbO3-based piezoelectric ceramics by nonlinear response measurements
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/5/10.1063/1.3553857
10.1063/1.3553857
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