New Crystallographic Developments Applicable in Studies of Reactions in Solids (Introductory Lecture).- Reactions at Surfaces and Interfaces (Plenary Lecture).- Reaction Kinetics in the Ca-Mn-O System.- Surface Reactivity Towards Olefin Oxidation of Cadmium Molybdate Doped with Transition Metal Ions.- Chemisorption of Sulfur on Iron and Its Influence on Iron-Gas Reactions, Surface Self Diffusion and Sintering of Iron.- The Influence of Intrinsic Defects on the Mechanism of the Solid State Reaction Between CdTe and HgSe.- Characterization and Surface Reactivity of Finely-Divided CoO-MgO Solid Solutions.- The Reactivity of Some Tungsten Oxides.- The Growth of Oxide Crystallites During the Oxidation of Iron in Carbon Dioxide Within the Scanning Electron Microscope.- The Reactivity of Metal Oxides and Sulfides with Lithium at 25°C - The Critical Role of Topotaxy.- On the Reaction Between Silver and Copper Iodide in Thin Evaporated Films.- Oxygen Diffusion in Strontium Titanate Studied by Solid/Gas Isotope Exchange.- Oxidation Behaviour of Zirconium Nitride in Oxygen.- Oxidation Behaviour of Nickel Tellurides in the Composition Region Between NiTe0.8 and NiTe2.0.- Reactions and Equilibrium Wetting in Titanium - Molten Glass Systems.- Oxidation Kinetics Study of Finely-Divided Magnetites Substituted for Aluminium and Chromium.- Crystalline Solid Rearrangement Brought About by Gas Removal. Shape and Size of the Crystallites Obtained.- Peroxide and Superoxide as Catalysts. A Model Based on Molten Salts Experiments.- Carbon Formation on Ni Foils by Pyrolysis of Propene (290°-800°C).- Oxidation Reaction of Chromium Oxide (Cr2O3) in the Presence of MM?O3 (M : Ca, Sr, Ba; M?: Ti, Zr).- Influence of a Foreign Gas in Heterogeneous Reactions.- About the Use of a Solid State Electro-Chemical Oxygen Pump for Selective Oxidation of Organic Materials.- On the High Temperature Reactivity in Air of Some Metal Powders and Their Relationship with the Self-Sealing Coatings for the Protection of High-Temperature Metal Surfaces.- Kinetic Aspects of Some Reactions Between Metals and Gaseous Carbon Disulphide.- Oxidation of Cobalt at High Temperatures and Self-Diffusion in Cobaltous Oxide.- Cation Distribution in Spinel Solid Solutions and Correlations Between Structural and Catalytic Properties.- Thermal Decomposition of Mg-Al-Formate and Low-Temperature Formation of Spinel Thereby.- Reaction Between Cemented Carbides and Molten Copper.- Kinetics of TiB Formation.- Description of Solid-Gas Reactions. Conclusions of Thermoanalytical and Electron Optical Studies on Calcium Carbonate Thermal Decomposition.- Dynamic Behaviour of Solid Surfaces.- Nucleation Process in the Decomposition of Nickel Formate.- Kinetic Study on the Phase Transformation of GeO2.- Kinetic Aspects on the Formation of Solid Solution.- Influence of Structural Defects on the Reactivity of Solids (Plenary Lecture).- Studies on Non-Stoichiometric Strontium Ferrate, SrFeO3?x.- Electron Microscopy of Ferroelectric Bismuthate Compounds.- Some Observations on the Chemical Reactivity of Nickel Powder Mechanically Treated by Grinding.- Defect Chemistry of La-Doped Barium Titanate.- The Kinetic Processes of Equilibrium Restoration in La-Doped BaTiO3.- High Temperature Redox-Reactions of Co:?-Al2O3.- Structural Evolution in the FeF3-WO3 System.- Diffusion and Reactivity in Perovskite Materials of the Composition (Pb,La)(Zr,Ti)O3.- Formation of Large Defects in Neutron Irradiated Alkali Halide Crystals.- Mechanism and Cationic Rearrangements Involved in the Reduction of Co2+[Co2?x3+Crx3+]O42? Spinels.- Correlations Between the Kinetics of Decomposition and the Crystal Structure for Some Inorganic Azide Single Crystals.- Influence of
$$ in the Atmosphere on the Rate of Changes in the System CaO-SiO2.- Autocatalytic Kinetics and Mechanism of the Reduction of Crystalline Cobalt Molybdate in Hydrogen.- An IR and EM Study of the Reactivity of Some Divalent Metal Hydroxides with Silica Gel.- Unexpected Cases of Reactions Between Solid Substances at Room Temperature and Normal Pressure. Four Different Examples.- Dislocations and Their Role in the Thermal Dehydration of Ba(ClO3)2·H2O.- New Insights on the Thermal Decomposition of Ammonium Perchlorate from Studies on Very Large Single Crystals.- Trapping of Hydrogen by Structural Defects in ?-Iron.- Cation Diffusion, Point Defects and Reaction in the CoO-?-Ga2O3 System.- The Texture and Heat Treatment of Hydrated Tin (IV) Oxides.- Redox Processes of Manganese Ions Dispersed in Oxide Matrices.- Studies by Electron Microscopy of the Reduction of MoO3.- Influence of Crystallographic, Magnetic Transformations and Structural Defects on the Reactivity of Simple and Combined Iron Oxides.- Non-Quenchability of Some Transition-Metal Chalcogenides.- About the Symmetry Lowering of Some Apatites as Evidenced by Their Infrared Spectrometric Study.- Mechanism and Kinetics of Solid State Reaction in the System: CuCr2O4 - Cu2Cr2O4 - CuO.- Topotaxy and Solid-Gas Reactions.- Microstrain and the Mechanism of the Reversible Monoclinic ? Tetragonal Phase Transformation in Zirconia.- Mechanical Damping of Ionic Crystals with Regard to MgO.- Ferrite Formation Mechanism.- Planar Defects and Reactivity of Perovskite-Like Compounds ABO3+X· The Series (Na,Ca)nNbnO3n+2(n>4).- Electron Density Fluctuations at the Vicinity of the Surface Layers.- Heterogeneous Ion-Exchange Reactions on Non-Stoichiometric Tungsten Oxide in Aqueous Media.- Polymerization and Other Organic Reactions in the Crystalline State (Plenary Lecture).- Laser Induced Reactions in Doped Polymethylmethacrylate and Their Correlation With Results Obtained by X-Ray and W Irradiation.- Thermal Isomerization of Cisazobenzene in the Solid State.- Energy Transfer in the Solid State Photopolymerization of Diacetylenes.- Solid-Gas Reactions. Part V. Bromination of Organic Solids.- Mechanisms of Some Room Temperature Phosphorescence Phenomena in Doped Solid Polymer Matrices.- Reactions in Vitreous Solids (Plenary Lecture).- Thermal Decomposition of Rhodium Oxide Gels.- Polymerization Effects During the Crystallization of Silicate Glasses.- The Use of Laser Raman Spectroscopy in the Study of the Formation of Oxide Glasses.- Relations Between Properties and Structural Evolution of Some Si, Ge, Sn Ternary Chalcogenides.- High and Low Temperature Forms of Leucite.- Desorption of Kr (or Kr85) and SF6 from Vitreous and Crystalline SiO2, and of Kr from B2O3 and GeO2 Glasses.- Surface Crystallization in the SiO2 - Al2O3 - ZnO System by DTA.- Some Recent Developments in the Investigation of Solid-State and Surface Reactions (Plenary Lecture).- The Investigation of Solid State Reactions with EPR.- Computer Simulation of Crystal Dissolution.- Study of the Initial Stage of the Oxidation Reaction of Pure Titanium and TA6V4 Alloy at High Temperature.- Study of Oxygen Diffusion in Quartz by Activation Analysis.- Theoretical Study of Simulated Dehydration of Crystal Silica Planes and Determination of Silica Gel Hydroxyl Distribution by NMR.- Thermal Decomposition of Cobalt Oxalate.- A Study of the Different Stages During Nickel Oxide Single Crystal Sulfurization by Hydrogen Sulfide.- Oxygen Diffusion in NiO and ZnO.- Sulfation Mechanism of CoO and NiO.- High Resolution Electron Microscopy of Reacting Solids.- The Electronic Structure of an Adsorbate Layer Studied by Angle-Resolved Photoemission Spectroscopy.- Thermal Decomposition of Alkaline Earth Chromates, Oxalates and Chromate-Oxalate Mixtures. The Ba, Sr, and Mg Compounds.- High Resolution Electron Microscopy Studies of Fluorite-Related Cerium Oxides.- The Development of Simultaneous TA-MS for the Study of Complex Thermal Decomposition Reactions.- The Status of Understanding Diffusion Controlled Solid State Sintering, Hot Pressing and Creep (Plenary Lecture).- Kinetic Study of the Reduction of Ni2+ Ions in an X-Type Zeolite.- Development of Conductive Chains in RuO2-Glass Thick Film Resistors.- Evaluation and Effects of Dispersion and Mixing Method of Reactant Particles on the Kinetics and Mechanism of Solid State Reactions.- Carbothermal Reduction of Silica.- Electrochemical Cells with Sulphate-Based Solid Electrolytes.- Reversible Topotactic Redox Reactions of Layered Chalcogenides.- Preparation and Properties of FeOCl-Pyridine Derivative Complexes and Their Reactivities with Methyl Alcohol.- Formation and Properties of Some Subhalides of Tellurium.- Thermal Studies on the Boron-Molybdenum Trioxide Pyrotechnic Delay System.- The Kinetics of the Reaction Between Magnesium Oxide and Iron (III) Oxide: The Effect of Sizes of Particles.- Co-Precipitation of Metal Ions During Ferrous Hydroxide Gel Formation.- Dehydration-Reduction Coupling Effects in the Transformation of Goethite to Magnetite.- Steps in Low Temperature Dehydroxylation of Clay.- Separation of Phases in Some Carbide Systems.- Mass Transport by Self-Diffusion and Evaporation-Condensation in High Temperature Kinetic Processes in UO2·PuO2 Nuclear Fuel.- The Structural Degredation of Carbon Fibres in Nickel at Elevated Temperature.- Solid State Reaction Studies on La2O3-NH4F and La(OH)3-NH4F.- The Corrosion Resistance of Fe-Cr Alloys as Studied by ESCA.- The Influence of Oxygen on the Current Potential Characteristics of Zn/- and ZnO/Electrolyte Contacts.- Author Index.
This vo1ume contains all the papers presented at the 8th International Symposium on the Reactivity of Solids. The Symposium, the 1a test of aseries started in 1948, was held at Cha1mers University of Techno10gy, Goteborg, Sweden, between June 14th and June 19, 1976. This was the second occasion on which a symposium in this series had been held in Goteborg. On the first occasion, in 1952, the Symposium was arranged by Professor J. Arvid Hedva11, the pioneering scientist in the fie1d of Solid State Chemistry, Profes sor at Cha1mers University since 1929 and one of those responsib1e for promoting the ear1y symposia of this series. It was a cause of regret to his friends and co11eagues that he died in the interval between the venue for the Eighth Symposium being announced and the meeting taking p1ace. In memory of Arvid Hedva11, an exhibition of his books and writings was arranged and put on display for the ben efit of participants in the Symposium. The Symposium comprised 112 papers, about 60% of those or~g~n a11y submitted, and was attended by approximate1y 250 participants from all over the wor1d. For the first time in the series, papers were presented in two forms, in over1apping but not parallel ses sions. Approximate1y one half of the papers were presented in the form of a poster display. For these, each paper was disp1ayed for 10nger periods to a110w for all the material to be digested.
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