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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12128/4330
Title: Peculiar properties of phase transitions in Na0.5Bi0.5TiO3-xBaTiO3 (0<x<6) lead-free relaxor ferroelectrics seen via acoustic emission
Authors: Dul'kin, Eveniy
Suchanicz, Jan
Kania, Antoni
Rotha, Michael
Keywords: Acoustic emission; Curie temperature; Depolarization temperature; Phase transformations; Relaxor ferroelectrics
Issue Date: 2018
Citation: Materials Research, Vol. 21, iss. 3 (2018), Art. number e20170953
Abstract: Na0.5Bi0.5TiO3-xBaTiO3 (0<x<6) relaxor ferroelectrics crystals were investigated by means of dielectric and acoustic emission methods. Dielectric curves exhibit the slightly visible small maxima near the depolarization temperatures, Td, and the wide maxima at the temperatures of Tm, whereas the acoustic emission exhibits the sharp bursts, corresponding to Td, Tlm, which is known to be a temperature exhibiting a strong frequency dispersion, TRE, which is known to be a temperature above which a frequency dispersion vanishes, and the Tm and the Tp manifesting a transition to the paraelectric phase. Based on the AE data it was established that all these characteristic temperatures shift down as x increases, but with different slopes. A mechanism of such the differences is discussed.
URI: http://hdl.handle.net/20.500.12128/4330
DOI: 10.1590/1980-5373-MR-2017-0953
ISSN: 1516-1439
Appears in Collections:Artykuły (WMFiCH)

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