Temperature dependence of the dielectric and piezoelectric properties of xBiFeO3–(1 − x)BaTiO3 ceramics near the morphotropic phase boundary

Lead-free and high-temperature piezoelectric ceramics of x BiFeO 3 –(1 − x )BaTiO 3 -1.0 mol% MnO 2 (0.67 ≤ x ≤ 0.78) ( x BF–(1 − x )BT-Mn) were fabricated by the conventional solid-state reaction method, and their high-temperature dielectric, piezoelectric and ferroelectric properties near the...

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Veröffentlicht in:	Journal of materials science 2017-09, Vol.52 (18), p.10726-10737
Hauptverfasser:	Wei, Jianxin, Fu, Dongyan, Cheng, Jinrong, Chen, Jianguo
Format:	Artikel
Sprache:	eng
Schlagworte:	Barium titanates Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Classical Mechanics Crystallography and Scattering Methods Curie temperature Depolarization Dielectric loss Dielectric properties Ferroelectric materials Ferroelectricity High temperature Lead free Manganese dioxide Materials Science Perovskite structure Perovskites Phase boundaries Piezoelectric ceramics Piezoelectricity Polymer Sciences Solid Mechanics Temperature Temperature dependence
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Zusammenfassung:	Lead-free and high-temperature piezoelectric ceramics of x BiFeO 3 –(1 − x )BaTiO 3 -1.0 mol% MnO 2 (0.67 ≤ x ≤ 0.78) ( x BF–(1 − x )BT-Mn) were fabricated by the conventional solid-state reaction method, and their high-temperature dielectric, piezoelectric and ferroelectric properties near the morphotropic phase boundary were studied systematically. XRD analysis revealed that x BF–(1 − x )BT-Mn ceramics exhibited pure perovskite structure, and the phase was driven by composition variation from the pseudo-cubic (0.67 ≤ x
ISSN:	0022-2461 1573-4803
DOI:	10.1007/s10853-017-1280-6