Multifunctional Materials Based on the Solid Solutions of the (Na, K, Cd<sub>0.5</sub>)NbO<sub>3</sub> (KNN-Cd) System Modified with Rare Earth Elements: Crystal Structure, Microstructure, and Macroresponses
Andryushin Konstantin,
Mikhail Palatnikov,
Lidiya Shilkina,
Alexandr Nagaenko,
Olga Shcherbina,
Maxim Smirnov,
Nikolay Sidorov,
Stanislav Kubrin,
Anzhela Rudskaya,
Daniil Rudskiy,
Larisa Reznichenko
Affiliations
Andryushin Konstantin
Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Mikhail Palatnikov
Tananaev Institute of Chemistry—Subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Apatity 184209, Russia
Lidiya Shilkina
Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Alexandr Nagaenko
Institute of High Technology and Piezo Technic, Southern Federal University, Rostov-on-Don 344002, Russia
Olga Shcherbina
Tananaev Institute of Chemistry—Subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Apatity 184209, Russia
Maxim Smirnov
Tananaev Institute of Chemistry—Subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Apatity 184209, Russia
Nikolay Sidorov
Tananaev Institute of Chemistry—Subdivision of the Federal Research Centre, Kola Science Centre of the Russian Academy of Sciences, Apatity 184209, Russia
Stanislav Kubrin
Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Anzhela Rudskaya
Faculty of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Daniil Rudskiy
Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Larisa Reznichenko
Research Institute of Physics, Southern Federal University, Rostov-on-Don 344002, Russia
Ceramic samples of polycomponent solid solutions (SSs) Na0.90K0.05Cd0.05NbO3 (Cd-modified KNN) and [(Na0.90K0.05Cd0.05)0.95REE0.05]NbO3, where REE = La, Pr, Tb, Dy, Ho, were obtained by the uniaxial hot pressing (UHP) method. The crystal lattice structures, morphological features of the microstructure, and dielectric and thermophysical properties of these ceramics have been investigated. For the first time, their strength characteristics (Young’s modulus) and the critical stress intensity factor of the mode I Kic have been estimated. Photoluminescent properties have been compared in SSs [(Na0.90K0.05Cd0.05)0.95REE0.05]NbO3 in the visible wavelength range.
