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Gadolinium calcium oxyborate piezoelectric single crystals for ultrahigh temperature applications
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10.1063/1.3000560
/content/aip/journal/jap/104/8/10.1063/1.3000560
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/8/10.1063/1.3000560

Figures

Image of FIG. 1.
FIG. 1.

Photo of as-grown GdCOB crystal pull along direction showing two sets of habitual faces and (101).

Image of FIG. 2.
FIG. 2.

Schematic of the cross section of the as-grown GdCOB crystal with relation to crystallographic and physical axes (a) and schematic crystal samples with and cuts.

Image of FIG. 3.
FIG. 3.

Orientation dependence of the piezoelectric coefficient for the GdCOB crystal (a) length extensional and (b) thickness shear .

Image of FIG. 4.
FIG. 4.

Resistivity as a function of temperature for GdCOB crystals with different cuts.

Image of FIG. 5.
FIG. 5.

Dielectric permittivity and dielectric loss as a function of temperature for different crystal cuts measured at frequency of 100 kHz.

Image of FIG. 6.
FIG. 6.

Resonance and antiresonance frequency characteristics of impedance and phase for -cut GdCOB samples at room temperature and (the small insert).

Image of FIG. 7.
FIG. 7.

Impedance modulus for -cut GdCOB crystal as a function of temperature.

Image of FIG. 8.
FIG. 8.

Temperature characteristics of the resonance frequency for the GdCOB crystal with different cuts.

Image of FIG. 9.
FIG. 9.

Electromechanical coupling factors and as a function of temperature.

Image of FIG. 10.
FIG. 10.

Piezoelectric coefficients and as a function of temperature.

Image of FIG. 11.
FIG. 11.

Usage temperature range for different ferroelectric materials and high temperature piezoelectric crystals.

Tables

Generic image for table
Table I.

Main properties for GdCOB crystal with different cuts . The figures in parenthesis were obtained at .

Generic image for table
Table II.

Room temperature piezoelectric properties for high temperature piezoelectric crystals.

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/content/aip/journal/jap/104/8/10.1063/1.3000560
2008-10-20
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Gadolinium calcium oxyborate piezoelectric single crystals for ultrahigh temperature (>1000 °C) applications
http://aip.metastore.ingenta.com/content/aip/journal/jap/104/8/10.1063/1.3000560
10.1063/1.3000560
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