0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 Phosphate Composites: Dielectric and Ferroelectric Properties
| Autor: | Artyom Plyushch, Nerijus Mačiulis, Aliaksei Sokal, Robertas Grigalaitis, Jan Macutkevič, Alexander Kudlash, Natalia Apanasevich, Konstantin Lapko, Algirdas Selskis, Sergey A. Maksimenko, Polina Kuzhir, Juras Banys |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
phosphates
PMN-PT composites dielectric properties ferroelectric properties densification Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 |
| Zdroj: | Materials, Vol 14, Iss 17, p 5065 (2021) |
| Druh dokumentu: | article |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma14175065 |
| Popis: | Composite materials with 83 wt.% of the 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 distributed in phosphate-bonded ceramics were prepared at three different pressures. A phosphate matrix comprises a mixture of an aluminum phosphate binder and melted periclase, MgO. All samples demonstrate a homogeneous distribution of the ferroelectric perovskite phase and are thermally stable up to 900 K. At higher temperatures, the pyrochlore cubic phase forms. It has been found that the density of the composites non-monotonously depends on the pressure. The dielectric permittivity and losses substantially increase with the density of the samples. The fabricated composites demonstrate diffused ferroelectric–paraelectric transition and prominent piezoelectric properties. |
| Databáze: | Directory of Open Access Journals |
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