Refractory Materials: A Series of Monographs Volume IV is a collection of works from different scientists who have made important discoveries in fields related to chemistry. The text covers topics such as chemical vapor deposition – its general aspects, selection of reactions, and parameters; solid-gas phase diagrams and open-tube processes; and the experimental resolution of solid-vapor equilibria. Also covered are topics such as phase behavior and related properties of rare-earth borides, crystal chemistry, the use of phase diagrams in the research and development of phosphor materials, and phase equilibria in magnetic oxide materials. The book is recommended for chemists and materials scientists who would like to know more about the studies of other experts in the field and their applications.

IV-VI and IV-VI2 semiconductors are among the most interesting materials in semiconductor physics. The electrical properties of these semiconductors can also be tuned by adding impurity atoms. These semiconductors either have already found use or are promising materials for infrared sensors and sources, thermoelectric elements, solar cells, memory elements, etc. The basic characteristics of these compounds, namely, narrow bandgap, high permittivity, relatively high radiation resistance, high mobility of charge carriers, and high bond ionicity, are unique among semiconductor substances. Because of their wide application in various devices, the search for new semiconductor materials and the improvement of existing materials is an important field of study. Doping with impurities is a common method of modifying and diversifying the properties of physical and chemical semiconductors. This book covers all known information about phase relations in ternary systems based on IV-VI and IV-VI2 semiconductors, providing the first systematic account of phase equilibria in ternary systems and making research originally published in Russia accessible to the wider scientific community. This book will be of interest to undergraduate and graduate students studying materials science, solid state chemistry, and engineering. It will also be relevant for researchers at industrial and national laboratories, in addition to phase diagram researchers, inorganic chemists, and solid-state physicists. FEATURES Provides up-to-date experimental and theoretical information Allows readers to synthesize semiconducting materials with predetermined properties Delivers a critical evaluation of many industrially important systems presented in the form of two-dimensional sections for the condensed phases

Phase Diagrams: Materials Science and Technology, Volume V is a six-chapter text that covers the use of phase diagrams in the understanding and development of inorganic materials. This volume first examines the atomistic understanding of the geometry of phase diagrams and the thermodynamic parameters on which the diagrams are based, as well as the relations of diagrams to crystal chemistry. The topics are followed by discussions on the most important thermodynamic theories of nonstoichiometry in binary oxide systems and the theories of spinodal decomposition that are relevant to crystalline nonmetals, especially to mixed crystalline oxides. Other chapters explore the phase equilibrium relations of phosphatic apatites including fluor-, chlor-, and hydroxyanion-containing compounds and of sialons and other nitrogen ceramics. The last chapter describes the mechanical, chemical, and thermal shock-resistant properties required of materials for stringent application. This chapter highlights the maximizing of the thermal shock resistance of silicate ceramics through lowering thermal expansion to meet the required properties of this application. The use of phase diagrams in the development of low thermal expansion materials for these applications is also discussed. This book will be useful to all scientists, engineers, and materials science students who are investigating and developing materials, as well as to the end user of the materials.

Phase Diagrams: Materials Science and Technology, Volume II covers the use of phase diagrams in metals, refractories, ceramics, and cements. Divided into 10 chapters, this volume first describes the main features of phase diagrams representing systems in which the oxygen pressure is an important parameter, starting with binary systems and proceeding toward the more complicated ternary and quaternary systems. The subsequent chapters discuss the application of phase diagrams in several refractory systems. A chapter covers the procedures used for cement production and some of the available phase-equilibrium data and their application to specific situations. This volume also deals with the application of phase diagrams to extraction metallurgy, with an emphasis on oxide systems, as well as in ceramic and metal sintering. The concluding chapters explore the relationship of heat treatment of metals and alloys to their phase diagrams. These chapters also deal with the use of phase diagrams in several techniques of joining metals, such as fusion welding, brazing, solid-state bonding, and soldering. This volume will be useful to all scientists, engineers, and materials science students who are investigating and developing materials, as well as to the end users of the materials.

Phase Diagrams: Materials Science and Technology, Volume III is an eight-chapter text that deals with the use of phase diagrams in electronic materials and glass technology. This volume first describes several crystal-growth techniques and the use of phase diagrams in crystals grown from high-temperature systems. This is followed by discussions on phase problems encountered in semiconductor studies with compound semiconductors and the use of phase diagrams in illustrating superconducting state and superconductivity property of materials. A chapter deals with the preparation of metastable phases by rapid quenching from the liquid (splat cooling) and the alloy constitution changes associated with their formation and properties, with a particular emphasis on the phase-diagram representation of metastable alloy phases. The discussion then shifts to metastable liquid immiscibility, occurrence, techniques of study, mechanisms of microphase separation, phase diagrams, and practical applications. This volume also examines the use of phase diagrams to obtain solubility data for high-temperature systems assisting in the prediction of dissolution behavior. The concluding chapters explore the relationships between phase diagrams and the structure of glass-forming oxide and phase studies of molten salts and their interactions with other salts and oxides. This book will be useful to all scientists, engineers, and materials science students who are investigating and developing materials, as well as to the end users of the materials.