Annealing-Dependent Morphotropic Phase Boundary in the BiMg0.5Ti0.5O3–BiZn0.5Ti0.5O3 Perovskite System

Cardoso, João, Pedro, V.; Shvartsman, Vladimir; Pushkarev, Anatoli, V.; Radyush, Yuriy, V.; Olekhnovich, Nikolai, M.; Khalyavin, Dmitry, D.; Čižmár, Erik; Feher, Alexander; Salak, Andrei, N.

doi:10.3390/ma15196998

Artikel / Aufsatz So., 09. Okt.. 2022 CC BY 4.0

Veröffentlicht

Annealing-Dependent Morphotropic Phase Boundary in the BiMg_0.5Ti_0.5O₃–BiZn_0.5Ti_0.5O₃ Perovskite System

Cardoso, João Pedro V.; Shvartsman, Vladimir ; Pushkarev, Anatoli V.; Radyush, Yuriy V.; Olekhnovich, Nikolai M.; Khalyavin, Dmitry D.; Čižmár, Erik; Feher, Alexander; Salak, Andrei N.

The annealing behavior of (1-x)BiMg_0.5Ti_0.5O₃–xBiZn_0.5Ti_0.5O₃ [(1-x)BMT–xBZT] perovskite solid solutions synthesized under high pressure was studied in situ via X-ray diffraction and piezoresponse force microscopy. The as prepared ceramics show a morphotropic phase boundary (MPB) between the non-polar orthorhombic and ferroelectric tetragonal states at 75 mol. % BZT. It is shown that annealing above 573 K results in irreversible changes in the phase diagram. Namely, for compositions with 0.2 < x < 0.6, the initial orthorhombic phase transforms into a ferroelectric rhombohedral phase. The new MPB between the rhombohedral and tetragonal phases lies at a lower BZT content of 60 mol. %. The phase diagram of the BMT–BZT annealed ceramics is formally analogous to that of the commercial piezoelectric material lead zirconate titanate. This makes the BMT–BZT system promising for the development of environmentally friendly piezoelectric ceramics.

Vorschau

Einordnung

Datum der Veröffentlichung:

09.10.2022

DOI:

10.3390/ma15196998

URN:

urn:nbn:de:hbz:465-20230323-091031-2

Sprache:

Englisch

Ressourcentyp:

Text

Schlagwörter:

lead-free; high-pressure synthesis; conversion polymorphism; X-ray diffraction; piezoresponse force microscopy

Kollektion:

E-Publikationen

Sachgruppen der Deutschen Nationalbibliographie:

620 Ingenieurwissenschaften und Maschinenbau

Einrichtung:

Fakultät für Ingenieurwissenschaften, Bauwissenschaften, Bauingenieurwesen, Materialwissenschaft

Förderung:

The publication of this article was supported by the Publication Fund of the University of Duisburg-Essen.

Versionskennzeichen:

Version of Record / Verlagsversion

Informationen zur Erstveröffentlichung:

Cardoso, J. P. V., Shvartsman, V. V., Pushkarev, A. V., Radyush, Y. V., Olekhnovich, N. M., Khalyavin, D. D., Čižmár, E., Feher, A., & Salak, A. N. (2022). Annealing-Dependent Morphotropic Phase Boundary in the BiMg0.5Ti0.5O3–BiZn0.5Ti0.5O3 Perovskite System. Materials, 15(19), 6998. https://doi.org/10.3390/ma15196998

Published: 9 October 2022

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