Download or read book Defects and Transport in Oxides written by Robert Jaffee and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: DEFECTS AND TRANSPORT IN OXIDES is the proceedings of the eighth Battelle Colloquium in the Materials Sciences, held in Columbus and Salt Fork, Ohio, September 17-22, 1973. It took as its theme the relationship between defects and transport of both mass and charge in oxides. Applications of defect-controlled transport to a number of important processes in oxides also were covered. In selecting this topic, the Organizing Committee thought that 1973 was timely to bring together the leading theoretical and experimental researchers in the oxide transport field to review its status in a critical way, and to consider current major research directions and how research in the future might be guided into fruitful areas. The meeting was highlighted by the presentation of several papers which suggest that major advances in our understanding of transport in oxides appear to be imminent. These papers dealt with the results of new theoretical approaches whereby the energies and configurations of defects may be calculated, and with new experimental techniques for indirectly observing these defects, previously thought to be below the limits of experimental resolving power. Other papers, dealing with the application of defect chemistry to technological processes, served to demonstrate the successes and to point out yet unresolved problems associated with ix x PREFACE understanding the chemistry of imperfect crystals.
Download or read book Defects and Transport in Oxides written by Robert I. Jaffee and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defects and transport in oxides proceedings written by Martin S. Seltzer and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Defect Chemistry of Metal Oxides written by Donald Morgan Smyth and published by Oxford University Press on Demand. This book was released on 2000 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Defect Chemistry of Metal Oxides is a unique introduction to the equilibrium chemistry of solid inorganic compounds with a focus on metal oxides. Accessible to students with little or no background in defect chemistry, it explains how to apply basic principles and interpret the related behavior of materials. Topics discussed include lattice and electronic defects, doping effects, nonstoichiometry, and mass and charge transport. The text distinctly emphasizes the correlation between the general chemical properties of the constituent elements and the defect chemistry and transport properties of their compounds. It covers the types of defects formed, the effects of dopants, the amount and direction of nonstoichiometry, the depths of acceptor and donor levels, and more. Concluding chapters present up-to-date and detailed analyses of three systems: titanium dioxide, cobalt oxide and nickel oxide, and barium titanate. The Defect Chemistry of Metal Oxides is the only book of its kind that incorporates sample problems for students to solve. Suitable for a variety of courses in materials science and engineering, chemistry, and geochemistry, it also serves as a valuable reference for researchers and instructors.
Download or read book Final Report Defects and Transport in Mixed Oxides written by and published by . This book was released on 2001 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: New results on the point defect chemistry of (Ni(subscript x)Fe{sub 1-x}){sub 3-delta}O4 and on the cation tracer diffusion in this spinel solid solution are presented and discussed. The equation system for the defect chemistry of perovskites of the type A{sub 1-x}B{sub 1+x}O{sub 3-delta} have been worked out and used to derive Kr{umlt o}ger-Vink diagrams. The deviation from stoichiometry, delta, in LA{sub 1-x}Mn{sub 1+x}O{sub 3-delta} has been measured at 1100, 1200, and 1300 degrees Celsius as a function of the oxygen activity and the composition variable x. At high and low oxygen activities, the data were fit by taking into account the electrostatic interaction between the charge defects by making use of the Debye H{umlt u}ckel theory.
Download or read book Mass Transport in Oxides written by J. B. Wachtman and published by . This book was released on 1968 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Point Defects and Transport in Non stoichiometric Oxides written by Sanjeev Aggarwal and published by . This book was released on 1996 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Topics in High Temperature Chemistry written by Ø. Johannesen and published by Elsevier. This book was released on 2017-01-31 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of materials at high temperature play a vital role in their processing and practical use. The real properties of materials at elevated temperatures are very often governed by defects in their structure. Lattice defects may consist of point defects like vacancies, interstitial atoms or substituted atoms. These classes are discussed in general and specifically for oxides, nitrides, carbides and sulfides. Defect aggregates, shear structures and adaptive structures are also described. Special attention is paid to hydrogen defects which seem to play an important role in several materials.Defects in solids lead to transport properties such as diffusion and conductivity. These themes are thoroughly treated in this book, with examples from various materials being provided. Special attention is paid to the transport properties of grain boundaries. In high temperature corrosion and other types of oxidation, the diffusion of atoms through the reaction products is often the rate limiting step of the reaction. This book takes the reader from the theoretical treatment of defects to applications in high temperature corrosion. Reactions between metals and pure oxygen lead to the formation of oxides on the surface, and the reaction rates may often be related to the diffusion coefficients of the oxide. However, in practical use alloys are subjected to other severe gaseous atmospheres which may often lead to accelerated attack on the material. The severest condition, namely where a salt deposit is combined with oxidizing gases, is called hot corrosion. This and other types of corrosion are also covered. Finally, a chapter is devoted to the prevention of corrosive attack on materials by the addition of rare earth metals.The book has been published in honour of Professor Per Kofstad on the occasion of his 60th birthday. Professor Kofstad has for many years been active in the field of high temperature chemistry in all its aspects, from basic and theoretical work to its application in high temperature corrosion of metals and alloys. The various chapters have been contributed by his friends and colleagues, all of whom are international experts in the field.
Download or read book Defects and Transport in Mixed Oxides Progress Report October 1 1993 December 20 1994 written by and published by . This book was released on 1994 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PI of this research program came to Cornell University from Hannover (Germany) in July 1987. Beginning in Fall 1987 a new research group and a new research facilities were built up at Cornell. The program {open_quotes}Defects and Transport in Mixed Oxides{close_quotes} was started in July 1988. The last progress report for this program was written on September 30, 1993 and submitted to DOE with the last renewal proposal. Significant progress has been made in the areas of: (i) the nonstoichiometry of quasi-binary spinels, (ii) the cation tracer diffusion in oxide solid solutions of the type (Fe, Me){sub 3-{delta}}O4, (iii) the Monte-Carlo simulation of the cation diffusion in spinel solid solutions, (iv) interdiffusion measurements in the spinel solution (Fe, Mn){sub 3-{delta}}O4, and (v) defect-related properties of Co{sub 1-{delta}}O.
Download or read book Defects at Oxide Surfaces written by Jacques Jupille and published by Springer. This book was released on 2015-02-09 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basics and characterization of defects at oxide surfaces. It provides a state-of-the-art review of the field, containing information to the various types of surface defects, describes analytical methods to study defects, their chemical activity and the catalytic reactivity of oxides. Numerical simulations of defective structures complete the picture developed. Defects on planar surfaces form the focus of much of the book, although the investigation of powder samples also form an important part. The experimental study of planar surfaces opens the possibility of applying the large armoury of techniques that have been developed over the last half-century to study surfaces in ultra-high vacuum. This enables the acquisition of atomic level data under well-controlled conditions, providing a stringent test of theoretical methods. The latter can then be more reliably applied to systems such as nanoparticles for which accurate methods of characterization of structure and electronic properties have yet to be developed. The book gives guidance to tailor oxide surfaces by controlling the nature and concentration of defects. The importance of defects in the physics and chemistry of metal oxide surfaces is presented in this book together with the prominent role of oxides in common life. The book contains contributions from leaders in the field. It serves as a reference for experts and beginners in the field.
Download or read book Defects and Transport in Mixed Oxides written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonstoichiometric Oxides written by O.T. Soerensen and published by Elsevier. This book was released on 2012-12-02 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonstoichiometric Oxides discusses the thermodynamic and structural studies of nonstoichiometric oxides. This eight-chapter text also covers the defect-defect interactions in these compounds. The introductory chapters describe the thermodynamic properties of nonstoichiometric oxides in terms of defect complexes using the classical thermodynamic principles and from a statistical thermodynamics point of view. These chapters also include statistical thermodynamic models that indicate the ordered nonstoichiometric phase range in these oxides. The subsequent chapters examine the transport properties, such as diffusion and electrical conductivity. Diffusion theories and experimental diffusion coefficients for several systems, as well as the electrical properties of the highly defective ionic and mixed oxide conductor, are specifically tackled in these chapters. The concluding chapters present the pertinent results obtained in nonstoichiometric oxide structural studies using high-resolution electron microscopy and X-ray and neutron diffraction. Inorganic chemists and inorganic chemistry teachers and students will greatly appreciate this book.
Download or read book Defects and Transport in Mixed Oxides Progress Report December 22 1992 September 30 1993 written by and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress has been made in: nonstoichiometry of rock salt structure oxide solid solutions; cation tracer diffusion in oxide solid solutions of the types (Co, Mn){sub 3-{delta}}O4 and (Co, Fe){sub 1-{Delta}}O; electrical conductivity in solid solution (Co, Fe){sub 1-{Delta}}O; Monte-Carlo simulation of the cation diffusion in spinel solid solutions; thermodynamic modelling of the ternary phase diagram of the system Co-Fe-Mn-O and the boundary systems Co-Fe-O and Fe-Mn-O at 1200 C; and interdiffusion in spinel solid solutions.
Download or read book Special Issue from the Bunsen Discussion on Complex Oxides Defect Chemistry Transport and Chemical Reaction written by Discussion on Complex Oxides: Defect Chemistry, Transport and Chemical Reaction (2002, Vaals) and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defects and Transport in Oxides written by Robert Isaac Jaffee and published by . This book was released on 1974 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charged Semiconductor Defects written by Edmund G. Seebauer and published by Springer Science & Business Media. This book was released on 2008-11-14 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defects in semiconductors have been studied for many years, in many cases with a view toward controlling their behaviour through various forms of “defect engineering”. For example, in the bulk, charging significantly affects the total concentration of defects that are available to mediate phenomena such as solid-state diffusion. Surface defects play an important role in mediating surface mass transport during high temperature processing steps such as epitaxial film deposition, diffusional smoothing in reflow, and nanostructure formation in memory device fabrication. “Charged Defects in Semiconductors” details the current state of knowledge regarding the properties of the ionized defects that can affect the behaviour of advanced transistors, photo-active devices, catalysts, and sensors. Features: group IV, III-V, and oxide semiconductors; intrinsic and extrinsic defects; and, point defects, as well as defect pairs, complexes and clusters.
Download or read book Nonstoichiometry Diffusion and Electrical Conductivity in Binary Metal Oxides written by Per Kofstad and published by . This book was released on 1983 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
