ВПЛИВ СИНТЕЗУ НА ДІЕЛЕКТРИЧНІ ВЛАСТИВОСТІ La0,5Li0,5-xNaxTiO3

• Дата: 2021
• Автори та афіліації: Tetiana Plutenko — V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine; Oleg V'yunov — V. I. Vernadsky Institute of General and Inorganic Chemistry; Oleksandr Fedorchuk — V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine; Oleg Yanchevskii — V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine; Anatolii Belous — V.I. Vernadsky Institute of General and Inorganic Chemistry of National Academy of Sciences of Ukraine
• Ключові слова: keywords
• Автори: Plutenko, Tetiana, V'yunov, Oleg, Fedorchuk, Oleksandr, Yanchevskii, Oleg, Belous, Anatolii
• Формат: Стаття
• Мова: Англійська
• Опубліковано: V.I.Vernadsky Institute of General and Inorganic Chemistry 2021
• Онлайн доступ: https://ucj.org.ua/index.php/journal/article/view/310
• Назва журналу: Ukrainian Chemistry Journal

Using X-ray powder, diffraction the sequence of reactions occurring during the synthesis La0.5Li0.5-xNaxTiO3 by solid-state reaction technique has been determined. Using electron microscopy it has been shown that the grain size decreases with increasing x in La0.5Li0.5-xNaxTiO3 system. The influence of the grain size of ceramics on the dielectric characteristics has been indicated. The frequency dependences of permittivity and dielectric loss tangent have been investigated by ac impedance spectroscopy. It has been established that ceramic sample of La0.5Li0.4Na0.1TiO3 solid solution has the largest value of permittivity ɛ > 104 at wide frequency range (1–104 Hz) in La0.5Li0.5-xNaxTiO3 system.