Novel Bismuth-Containing Oxides of Aurivillius–Smolensky Phases

This book explores the relationships between the electrophysical characteristics and chemical composition, crystal structure, and local atomic structure of new layered perovskite-like bismuth oxides, which are classified as Aurivillius-Smolensky phases (ASPs). The book studies almost 90 solid solutions of layered perovskite-like oxides with the general chemical formula Am-1Bi2BmO3m+3 that are environmentally friendly materials. This book consists of six chapters with a conclusion to each chapter at the end of it. The preface assesses the current state of the research field, identifies key development trends, and briefly describes all chapters. The first chapter provides a comprehensive literature review and state-of-the-art level of the results, obtained in the research of Aurivillius-Smolensky phases. The second chapter is devoted to the effects discussed of doping on the electrophysical properties and crystal structure of two-layer ASPs compounds Bi3TiNbO9, Bi3TiTaO9 and SrBi2Nb2O9. The third chapter explores the relationship between the structural characteristics and electrophysical properties of a series of Bi7Ti4+?W?M1-2xO21 solid solutions (M = Nb, Ta, Sn, V, Y, Nd; x = 0 – 0.5) with isomorphic substitution of Nb by Ta. Chapter 4 discusses the relationship between changes in microstructure and increases in the value of dielectric constant for the sintering temperature of tri-layer compounds Bi4-xNdxTi3O12 (x = 0.1, 0.3, 0.5, 0.7). In the fifth chapter, several new polycrystalline Bi-containing layer perovskite-like oxides with the ASP structure and the general formula A0.5Bi4.5B0.5Ti3.5O15 (A = Na, Ca, Sr, Pb; B = Cr, Co, Ni, Fe, Mn, Ga) have been synthesized, which are related to four-layer compounds. Sixth chapter discusses the anisotropic nature of the dielectric properties of layered compounds of the ASPs family. The studies presented proves a structural anisotropy in the Aurivillius–Smolensky phases, defining two-dimensionality of the dielectric properties of layered perovskite-like compounds in this family.