Structure and dielectric properties of (1-x)Na_(0.5)Bi_(0.5)TiO_(3-x)Na_(0.5)K_(0.5)NbO_(3)  

作　　者：E.V.Glazunova L.A.Shilkina A.S.Chekhova A.V.Nazarenko I.A.Verbenko L.A.Reznichenko 

机构地区：[1]Research Institute of Physics,Southern Federal University Rostov-on-Don,344090,Russia [2]Faculty of Physics,Southern Federal University Rostov-on-Don,344090,Russia [3]Southern Scientific Center of the Russian Academy of Sciences Rostov-on-Don,344006,Russia

出　　处：《Journal of Advanced Dielectrics》2024年第1期82-88,共7页先进电介质学报（英文）

基　　金：support of the Ministry of Science and Higher Education of the Federation(State task in the field of scientific activity in 2023);Project No.FENW-2023-0010/(GZ0110/23-11-IF).

摘　　要：The solid solutions of the(1-x)Na_(0.5)Bi_(0.5)TiO_(3-x)Na_(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)Na_(0.5)Bi_(0.5)TiO_(3-x)Na_(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 Na_(0.5)K_(0.5)NbO_(3) 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)TiO_(3-x)Na_(0.5)K_(0.5)NbO_(3) system was shown.The increase in energy density and energy efficiency was found at additive 10 mol.%of Na_(0.5)K_(0.5)NbO_(3).

关 键 词：CERAMICS lead-free materials mechanical activation dielectric properties energy storage 

分 类 号：TM282[一般工业技术—材料科学与工程]