General Introduction.- Nitrogen Ceramics 1976–1981.- Section A Crystal Chemistry.- (R) Silicate Structures and Atomic Substitution.- (R) The Characterization of ?’-sialons and the ?-? relationships in sialons and silicon nitrides.- The Structural Characterization of Sialon Polytypoids.- Section B Thermodynamics.- Calculation of Phase Equilibria in Systems Based on Silicon Nitride.- Phase Equilibrium Studies in Silicon Nitride — Metal Oxides Systems.- Solid-Liquid Reactions in Part of the System Si-Al-Y-N-0.- High Temperature Reactions and Microstructures in the Al203-AlN System.- Section C Formation Processes.- Silicon Nitridation.- The Effect of Silicon Particle Size on the Nitriding Behaviour of Reaction Bonded Silicon Nitride Compacts.- An Experimental Plan for the Nitridation of Si +Al Compacts.- Preparation of Silicon Nitride from Silica.- On the Preparation of Fine Silicon Nitride Powders.- Section D Structural Development.- Liquid Phase Sintering.- Sintering of Silicon Nitride, A Review.- Influence of Powder Properties and Processing Parameters on the Sintering of Silicon Nitride.- Sintering of Silicon Nitride-Based Materials using the Powder Bed Technique.- Densification and Transformation Mechanisms in Nitrogen Ceramics.- Sintering of Reaction Bonded Silicon Nitride.- Microstructure of Densified Reaction Bonded Silicon Nitride.- Sintering of Aluminium Nitride with Low Oxide Addition.- Stress Assisted Hot Formation of Ceramics.- Influence of Composition and Process Selection on Densification of Silicon Nitride.- A Gas Pressure Sintering Process for Producing Dense Silicon Nitride.- Hot Pressing of Aluminium Nitride.- Section E Vitreous State.- Structure-Property Relationships of the Vitreous State.- The Preparation and Properties of Oxynitride Glasses.- The Crystallization Behaviour of a Mg-Si-0-N Glass.- Thermodynamics of Grain Boundary Glass Crystallization (Abstract).- Section F Microstructure.- The Microstructure of Nitrogen Ceramics.- Evaluation of Microstructure in ?’-Sialon Materials by TEM Methods and its Correlation to Some Properties.- Sialon X-Phase.- Microstructure Development in Silicon Nitride.- Contribution of the Strength-Porosity Relationship in Reaction-Bonded Silicon Nitride.- Section G Chemical Interactions.- The Kinetics of Gas-Solid Reactions and Environmental Degradation of Nitrogen Ceramics.- Thermodynamics of Cation Diffusion through an Intergranular Phase: Application to Environmental Reactions with Nitrogen Ceramics.- Oxidation of Hot-Pressed Silicon Nitride.- Oxidation Behaviour of ?’-Sialons in Oxygen and Carbon Dioxide.- Metallic Infiltration of Reaction Bonded Silicon Oxide.- Brazing of Silicon Nitrides.- Section H Mechanical and Physical Properties.- High Temperature Deformation and Fracture Phenomena of Polyphase Silicon Nitride Materials.- Time-Temperature Effects in Nitride and Carbide Ceramics.- High Temperature Fatigue Failure in Pressureless Sintered Silicon Nitride.- Effect of Deformation on the Fracture of Si3N4 and Sialon.- Cyclic Fatigue Behaviour of Ceramics.- The Fracture Behaviour of Hot-Pressed Silicon Nitride between Room Temperature and 1400°C.- Parameter Studies on the Oxidation and the Strength Behaviour of Silicon Nitride.- Characterization, Oxidation and Mechanical Behaviour of Reaction-Bonded Silicon Nitride.- Creep and Internal Oxidation of Reaction Bonded Silicon Nitride.- Influence of Corrosion and Microstructure on the Mechanical Properties of Si-Y-O-N Ceramics.- Thermal Properties and Thermal Shock Resistance of Nitrogen Ceramics.- Thermal Shock Resistance of two Nitrogen Ceramics.- Non-Destructive Failure Prediction in Ceramics.- Non-Destructive Evaluation of Ceramic Gas Turbine Components by X-rays and other Methods.- Surface Damage in Ceramics: Implications for Strength Degradation, Erosion and Wear.- Contact Stresses at Ceramic Interfaces.- Section I Applications.- Sintering Properties and Fabrication of Si3N4/ Y203-Based Ceramics.- Lucas Syalons: Composition, Structure, Properties and Uses.- The Nature of SiC for Use in Heat Engines as Compared to Si3N4: An Overview of Property Differences.- Fabrication of Complex Shaped Ceramic Articles by Slip Casting and Injection Molding.- Hot Isostatic Pressing of Ceramics.- Section J National Research Programmes.- U.S. National Programmes in Ceramics for Energy Conversion.- Status Report 1981 on the German BMFT-Sponsored Programme “Ceramic Components for Vehicular Gas Turbines”.- Nitrogen Ceramics in France.- Current Japanese Research Programmes into Nitrogen Ceramics (presented by K. Suzuki).- Survey and Conclusions.- Concluding Remarks.- Author Index.- Index of Crystal Structures.- Index of Systems and Sub-Systems.
