Dielectric properties of Pb2In3+B5+O6 (B5+- Nb, Ta) ceramics sintered from mechanochemically synthesized nanopowders

High-energy mechanical activation of the starting oxides was found to reduce dramatically or even suppress the frequency shift of the dielectric permittivity maximum of ceramic ferroelectrics-relaxors Pb 2 InNbO 6 and Pb 2 InTaO 6 sintered from the mechanochemically synthesized nanopowders. At the s...

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Bibliographic Details
Published in:Ferroelectrics 2019-04, Vol.542 (1), p.28-35
Main Authors: Raevskaya, S. I., Gusev, A. A., Isupov, V. P., Raevski, I. P., Titov, V. V., Malitskaya, M. A., Li, G. R., Kubrin, S. P., Sitalo, E. I.
Format: Article
Language:English
Subjects:
Ceramics
dielectric permittivity
Dielectric properties
Dielectric relaxation
Electrical properties
Ferroelectric materials
Ferroelectricity
Frequency shift
InNbO
InTaO
mechanochemical synthesis
Niobium
Oxides
Permittivity
relaxor
Relaxors
Sintering
Synthesis
Tantalum
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Summary:High-energy mechanical activation of the starting oxides was found to reduce dramatically or even suppress the frequency shift of the dielectric permittivity maximum of ceramic ferroelectrics-relaxors Pb 2 InNbO 6 and Pb 2 InTaO 6 sintered from the mechanochemically synthesized nanopowders. At the same time, the heights of the dielectric permittivity maxima for both compounds are substantially higher than those reported in the literature for similar ceramics obtained by usual solid state reactions route.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2019.1574658