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Lead-free piezoceramics with giant strain in the system . II. Temperature dependent properties
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10.1063/1.2838476
/content/aip/journal/jap/103/3/10.1063/1.2838476
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/3/10.1063/1.2838476
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Temperature dependent and of (a) 0.93BNT-0.05BT-0.02KNN and (b) 0.91BNT-0.07BT-0.02KNN, together with the differences of heat flows in two successive DSC runs on (c) 0.93BNT-0.05BT-0.02KNN and (d) 0.91BNT-0.07BT-0.02KNN.

Image of FIG. 2.
FIG. 2.

Composition dependent (a) and (b) measured at a frequency of . of the compositions with dominant ferroelectric order at RT (group I) is generally higher than that with mixed ferroelectric and antiferroelectric order at RT (group II), whereas exhibits little dependence on composition.

Image of FIG. 3.
FIG. 3.

Temperature dependent loops of (a) 0.93BNT-0.05BT-0.02KNN and (b) 0.91BNT-0.07BT-0.02KNN.

Image of FIG. 4.
FIG. 4.

Temperature dependent (a) and (b) for all compositions.

Image of FIG. 5.
FIG. 5.

Temperature dependent bipolar curves of (a) 0.93BNT-0.05BT-0.02KNN and (b) 0.91BNT-0.07BT-0.02KNN. The shape and maximum strain of 0.93BNT-0.05BT-0.02KNN change more significantly than that of 0.91BNT-0.07BT-0.02KNN.

Image of FIG. 6.
FIG. 6.

Temperature dependent negative strain under bipolar field loading, showing that the shape change in the curve of group I compositions is more significant than that of group II compositions.

Image of FIG. 7.
FIG. 7.

Temperature dependent unipolar curves of (a) 0.93BNT-0.05BT-0.02KNN and (b) 0.91BNT-0.07BT-0.02KNN. Note that the hysteresis and maximum strain have different temperature dependences.

Image of FIG. 8.
FIG. 8.

Temperature dependent maximum unipolar strain values for all compositions.

Image of FIG. 9.
FIG. 9.

Three-dimensional plots of maximum strain value at (a) , (b) , (c) , and (d) .

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/content/aip/journal/jap/103/3/10.1063/1.2838476
2008-02-12
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Lead-free piezoceramics with giant strain in the system Bi0.5Na0.5TiO3–BaTiO3–K0.5Na0.5NbO3. II. Temperature dependent properties
http://aip.metastore.ingenta.com/content/aip/journal/jap/103/3/10.1063/1.2838476
10.1063/1.2838476
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