Structure and dielectric properties of (1-x)Na0.5Bi0.5TiO3-xNa0.5K0.5NbO3 ceramics

被引:1
|
作者
Glazunova, E. V. [1 ]
Shilkina, L. A. [1 ]
Chekhova, A. S. [2 ]
Nazarenko, A. V. [3 ]
Verbenko, I. A. [1 ]
Reznichenko, L. A. [1 ]
机构
[1] Southern Fed Univ, Res Inst Phys, Rostov Na Donu 344090, Russia
[2] Southern Fed Univ, Fac Phys, Rostov Na Donu 344090, Russia
[3] Russian Acad Sci, Southern Sci Ctr, Rostov Na Donu 344006, Russia
关键词
Ceramics; lead-free materials; mechanical activation; dielectric properties; energy storage; ELECTRICAL-PROPERTIES; ENERGY; DENSITY;
D O I
10.1142/S2010135X23500236
中图分类号
O59 [应用物理学];
学科分类号
摘要
The solid solutions of the (1-x)Na0.5Bi0.5TiO3-xNa(0.5)K(0.5)NbO(3) system were produced by the conventional ceramic technology using mechanical activation of the synthesized product. It was found that in the (1-x)Na0.5Bi0.5TiO3-xNa(0.5)K(0.5)NbO(3) system at room temperature, a number of morphotropic phase transitions occur: rhombohedral -> cubic -> tetragonal -> monoclinic phases. The introduction of a small amount of Na0.5K0.5NbO3 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)Na0.5Bi0.5TiO3-xNa(0.5)K(0.5)NbO(3) system was shown. The increase in energy density and energy efficiency was found at additive 10mol.% of Na0.5K0.5NbO3.
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页数:7
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