STRUСTURE AND PROPERTIES OF CERAMIC RELAXOR FERROELECTICS OF THE SYSTEM BiScO3 - PbTiO3 WITH MnO2 ADDITIVES IN THE FIELD OF THE MORPHOTROPIC TRANSITION
https://doi.org/10.32362/2500-316X-2017-5-1-15-22
Abstract
X-ray diffraction analysis by Rietveld method was carried out for ceramic samples of the system (1-x)BiScO3·xPbTiO3·yMnO2, х=0.63, and y=0.0017 and 0.0118. It was shown that they consist of two phases: tetragonal phase (space group P4mm) and monoclinic phase (space group Cm). The temperature dependencies ε(T) и tgδ(T) were obtained for samples y = 0 - 0.0177 at the frequencies 0.1 - 200 kHz. The samples are ferroelectric with Tc 685-690 K when y ≤ 0.002. With increasing content of MnO2 samples acquire the properties characteristic of ferroelectrics-relaxors. The position of the maximum of dielectric permittivity shifts depending on frequency of measuring field.
About the Authors
V. P. Sirotinkin
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
А. А. Bush
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
K. E. Kamentsev
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
A. V. Stepanov
Moscow Technological University (MIREA)
Russian Federation
Russian Federation
A. G. Segalla
OJSC "Scientific Research Institute "ELPA"
Russian Federation
Russian Federation
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Review
For citations:
Sirotinkin V.P., Bush А.А., Kamentsev K.E., Stepanov A.V., Segalla A.G. STRUСTURE AND PROPERTIES OF CERAMIC RELAXOR FERROELECTICS OF THE SYSTEM BiScO3 - PbTiO3 WITH MnO2 ADDITIVES IN THE FIELD OF THE MORPHOTROPIC TRANSITION. Russian Technological Journal. 2017;5(1):15-22. (In Russ.) https://doi.org/10.32362/2500-316X-2017-5-1-15-22
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