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

S. I. RaevskayaResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; Correspondence[email protected]
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A. A. GusevInstitute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russia; View further author information

V. P. IsupovInstitute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russia; View further author information

I. P. RaevskiResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; View further author information

V. V. TitovResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; View further author information

M. A. MalitskayaResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; View further author information

G. R. LiShanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, ChinaView further author information

S. P. KubrinResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; View further author information

E. I. SitaloResearch Institute of Physics and Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia; View further author information

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Abstract

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 Pb₂InNbO₆ and Pb₂InTaO₆ 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.

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This study was partially supported by RFBR (project 17-03-01293_a) and by the Ministry of Education and Science of the Russian Federation (project 3.1649.2017/4.6). IPR acknowledges the support from the CAS President’s International Fellowship Initiative through the project 2018VEA0011.

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

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