Structure and dielectric properties of (1-x)Na<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>Bi<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>TiO3-xNa<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>K<inline-formula><math display="inline" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><msub><mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>5</mn></mrow></msub></math></inline-formula>NbO3 ceramics

E. V. Glazunova; L. A. Shilkina; A. S. Chekhova; A. V. Nazarenko; I. A. Verbenko; L. A. Reznichenko

doi:10.1142/S2010135X23500236

Journal of Advanced Dielectrics, Volume. 14, Issue 1, 2350023(2024)

Structure and dielectric properties of (1-x)Na $_{0.5}$ Bi $_{0.5}$ TiO₃-xNa $_{0.5}$ K $_{0.5}$ NbO₃ ceramics

E. V. Glazunova^1、*, L. A. Shilkina¹, A. S. Chekhova², A. V. Nazarenko³, I. A. Verbenko¹, and L. A. Reznichenko¹

Author Affiliations

¹Research Institute of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia

²Faculty of Physics, Southern Federal University, Rostov-on-Don, 344090, Russia

³Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, 344006, Russia

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The solid solutions of the (1-x)Na $_{0.5}$ Bi $_{0.5}$ TiO₃-xNa $_{0.5}$ K $_{0.5}$ NbO₃ system were produced by the conventional ceramic technology using mechanical activation of the synthesized product. It was found that in the (1-x)Na $_{0.5}$ Bi $_{0.5}$ TiO₃-xNa $_{0.5}$ K $_{0.5}$ NbO₃ system at room temperature, a number of morphotropic phase transitions occur: rhombohedral → cubic → tetragonal → monoclinic phases. The introduction of a small amount of Na $_{0.5}$ K $_{0.5}$ NbO₃ leads to an increase in the temperature stability of the dielectric properties of ceramics. A change in the relaxor properties of the solid solutions of the (1-x)Na $_{0.5}$ Bi $_{0.5}$ TiO₃-xNa $_{0.5}$ K $_{0.5}$ NbO₃ system was shown. The increase in energy density and energy efficiency was found at additive 10mol.% of Na $_{0.5}$ K $_{0.5}$ NbO₃.

Keywords

Ceramics dielectric properties energy storage lead-free materials mechanical activation

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E. V. Glazunova, L. A. Shilkina, A. S. Chekhova, A. V. Nazarenko, I. A. Verbenko, L. A. Reznichenko. Structure and dielectric properties of (1-x)Na $_{0.5}$ Bi $_{0.5}$ TiO₃-xNa $_{0.5}$ K $_{0.5}$ NbO₃ ceramics[J]. Journal of Advanced Dielectrics, 2024, 14(1): 2350023

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Paper Information

Category: Research Articles

Received: May. 29, 2023

Accepted: Oct. 15, 2023

Published Online: Mar. 25, 2024

The Author Email: Glazunova E. V. (kate93g@mail.ru)

DOI:10.1142/S2010135X23500236

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