Superionic Conductors

A hundred and eighty five chemists, physicists, and engineers met in Schenectady, New York, for the three days May 10-12, 1976, to discuss the subject of Superionic Conductors. This International Conference was held at the Research and Development Center of the General Electric Company. The subject of the Conference was fast ion transport in solids. These materials have potential application in new types of batteries, fuel cells, and sensors. Some like beta alumina are under active development in nov'el new systems. Their study has also become a popular area of scientific investigation. One objective of the Conference was to provide a forum for interdisciplinary communication between chemists, physicists, and engineers. The Conference was an attempt to bring these groups together, in order to listen to each others problems and progress. We began organizing the Conference in the spring of 1975. It was suggested to General Electric managers Drs. Craig S. Tedmon, Jr. and Roland W. Schmitt. They provided immediate and enthusiastic support. They also provided the advice, staff, and backup which were necessary at all points in the planning and duration of the Conference. We were also pleased that they could participate in the Conference: Dr. Tedmon welcomed the participants and officially opened the Conference, and Dr. Schmitt gave the after banquet address. We thank them. Additional and invaluable help, and advice, were also provided by Drs. D. Chatterji, J. B. Bush, G. W. Ludwig, and J. B. Comly. We were joined on the program committee by Drs.

Inhalt
A: Electrochemical Systems.- Energy Storage, Batteries, and Solid Electrolytes: Prospects and Problems.- High Temperature Solid Electrolyte Fuel Cells.- Applications of Beta Alumina in the Energy Field.- Properties and Applications of Solid Solution Electrodes.- The Electrochemical Properties of Some Solid Electrolytes.- Interpretation of AC Impedance Measurements in Solids.- Use of Pulse Methods in the Study of Solid Electrolytes.- A Study of the Electrical Properties of Single Crystal and Polycrystalline ?-Alumina Using Complex Plane Methods.- B: Theory.- Phase Transitions and Translational Freedom in Solid Electrolytes.- Theoretical Issues in Superionic Conductors.- Path Probability Method as Applied to Problems of Superionic Conduction.- Domain Model for Superionic Conductors.- Remarks on Phase Transitions and Dynamics in Superionic Conductors.- Vibration Effect in the Order-Disorder Transition Theory of RbAg4I5.- Superionic Conductivity and Order-Disorder Transition.- A Microscopic Model for Sublattice Disorder in Ionic Crystals.- Minimum Energy Path Model Calculation for Several Fast Ionic Conductors.- One-Dimensional Models for Superionic Conductors.- A Quantum Mechanical Theory of Ionic Diffusion.- C: Silver Conductors.- Crystal Structure and Conductivity of AgI-Based Solid Electrolytes II.- AgI-Type Solid Electrolytes: Properties at Frequencies Between 109 and 1013 Hz.- Lattice Dynamics and Ionic Motion in Superionic Conductors.- Properties of the 208K Phase Transition in Single Crystals of RbAg4I5.- The Distribution of Silver Ions in ?-AgI.- Raman Spectra of the Superionic Conductors AgI and RbAg4I5.- Raman Measurements of AgI and RbAg4I5.- Raman Scattering from RbAg4I5.- Ion-Ion Correlations in Superionic Conductors RbAg4I5.- Raman Spectra of Some IonicConductors.- Local Order in the Solid Electrolyte ?-HgAg2I4.- The Gradual Order-Disorder Transition in PyAg5I6.- Studies of Ionic Conduction and Diffusion in Solid Silver Halides.- D: Beta Alumina.- Studies of Stabilization and Transport Mechanisms in Beta and Beta? Alumina by Neutron Diffraction.- X-Ray Diffuse Scattering from ? Alumina.- Neutron Scattering Studies of Solid Electrolytes.- Experimental Probes of Microscopic Interactions Controlling Diffusion in Cation Substituted ?-Alumina.- Light Scattering Measurements in Solid Ionic Conductors.- NMR Studies of Superionic Conductors, Primarily Beta-Alumina.- Additives and Resistivity in Beta-Alumina.- The Inter- and Intra-Granular Resistivity of Beta-Alumina.- Nuclear Relaxation and Barrier Height Distribution in Na ?-Alumina.- NMR Study of Sodium Ion Motion in ??-Alumina.- Sodium NMR Study of the Effects of Additives in Sodium Beta-Alumina Ceramic Samples.- Calculation of the Phonon Spectra of ?-Alumina.- The Thermal Conductivity of ?-Alumina.- A Collective Ionic Model for Na ?-AluminaEvidence from Conductivity Measurements Between 1071013 Hz.- Far Infrared Spectra of Sodium-?-Alumina and Its K+, Rb+, Cs+, Ag+ and Tl+ Analogs.- The Lattice Location of Conducting Atoms in Ag, K ?-Alumina by Particle Channeling.- Structural Characteristics and Non-Stoichiometry of ?-Alumina Type Compounds.- Planar [00.1] Disorder in Sodium Beta Alumina.- Latest Reults of Laboratoire de Chimie Appliquée de l'état solide de l'ENSCP on Compounds of ? Alumina Type.- Power Neutron Diffraction Analysis of Sodium Silver and Deuterium Beta Aluminas.- Ammonium Ion Reorientation in ?-Alumina.- X-Ray Diffuse Scattering from Alkali and Europium Aluminas.- Surface Studies of Na-?-Alumina.- Transport Propertiesof Single Crystal Beta Alumina.- E: Other Superionic Conductors.- Some Super Ionic Conductors and Their Applications.- Fluorite-Type Oxygen Conductors.- Ion Dynamics and Defect Structure of Cubic PbF2.- NMR Studies of F Ion Motion in Doped ?-PbF2.- E.S.R. of Mn2+ in Zirconia-Calcia Solid Solutions.- Composition and Electrical Properties of R. F. Sputtered Stabilized Zirconia Thin Films.- Influence of Dopant and Dopant Concentration on Ionic Conduction and Stoichiometry in Solid Ceria Electrolytes.- New Fluor Ion Conductors.- New Lithium Ion Conductors.- Ionic Conductivity in Lithium Aluminosilicate Solid Electrolyte Materials.- Li+ Conduction in the Beta Alumina Structure.- Mechanism of Formation of the Sodium Gallate Superionic Conductors.- Reaction of ??-Sodium Gallate with Water.- Electron Paramagnetic Dection of the Liquid-Like Motion of Divalent Ions in Solid ?-Sodium Gallate.- New Solid Electrolytes.- Anomalous Properties of Cu3VS4.- On the Transport Mechanism in Sulfate-Based Solid Electrolytes.- Structural Aspects and High Partial Cu+-ionic Conductivity in Compounds of CuTeX (X=Cl,Br,I).- The State of Order of the Conducting Ions in Hollandites.- Diffusion in the Intercalation Compounds of the Layered Disulfides.- Single Crystal Studies of Cubic Phases of VDx by Neutron Diffraction.- Author Index.- Formula Index.