کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5436376 1509550 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Piezoelectric and ferroelectric properties of <001>C Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals under combined thermal and mechanical loading
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Piezoelectric and ferroelectric properties of <001>C Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals under combined thermal and mechanical loading
چکیده انگلیسی

The direct piezoelectric coefficient and permittivity of <001>C-0.26Pb(In1/2Nb1/2)O3-0.47Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 (PIN-PMN-PT) single crystals were simultaneously measured as functions of temperature and uniaxial compressive stress at various frequencies. The results show a nonlinear increase of the piezoelectric coefficient from ∼1300 pC/N at 25 °C to over 8000 pC/N at 99 °C, followed by a sharp decrease and gradual decay to zero. The peak in piezoelectric coefficient coincides with a dielectric anomaly that is associated with a rhombohedral to tetragonal phase transition. An increase of the compressive bias stress reduced the magnitude of the peak in piezoelectric coefficient and shifted it to lower temperatures, revealing an initial increase in the piezoelectric response understood to be due to a stress-induced phase transition. The large-signal macroscopic constitutive behavior was characterized at various compressive stresses from 25 °C to 150 °C. These data are contrasted with the small-signal piezoelectric measurements and show the combined influence of stress and temperature on the electromechanical properties and stress-induced phase transitions in relaxor ferroelectric PIN-PMN-PT single crystals. Implications of the results for the application window of single-crystal PIN-PMN-PT transducers are discussed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 126, March 2017, Pages 174-181
نویسندگان
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