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Full Description
The volumes 11 and 12 of Fracture Mechanics of Ceramics constitute the proceedings of the 6th International Symposium on Fracture Mechanics of Ceramics held at the Research Center Karlsruhe, Germany, July 18,19,20,1995. As in previous conferences the state of the art of the failure behaviour of monolithic engineering ceramics and of reinforced ceramics was discussed. The 90 papers by over 200 authors and co-authors address the recent devel- opments in the understanding and the modelling of the fracture processes in brittle materi- als. The main topics are R-curve behaviour, toughness determination, surface effects, com- posite materials, high temperature behaviour, ceramic-metal joints, fatigue. The program chairmen gratefully acknowledge the financial support of the Deutsche Forschungsgemeinschaft (German Science Foundation) which made possible the participa- tion of scientists from East Europe. We also thank Mrs. Eva Schroder from the Research Cen- ter Karlsruhe, the local organization committee (Dirk Hertel, Claus Petersen, Dr. Franz Porz, Rainer Weif3) and the conference secretary Mrs.
Lucia Borchardt for their conscientious and efficient organization of all details of the conference, Mrs. Isabella Daubenthaler and Mrs. Natascha Rothweiler for preparing the booklet of abstracts and Dr. Theo Fett for his help in editing the proceedings.
Contents
Fracture Mechanics of Fatigue of Structural Ceramics.- Fatigue Behavior of Sintered Al2O3 under Rotary Bending and Static Fatigue.- Fatigue of Notched Alumina Specimens.- Static and Cyclic Fatigue of Zirconia Materials Measured by Double Torsion.- The Fatigue Behaviour of Mg-PSZ and ZTA Ceramics.- The Influence of Processing Techniques on the Fatigue Properties of Yttria Stabilized Zirconia with Different Grain Sizes.- Fatigue Crack Initiation and Propagation in Ceramics.- On Fatigue and Fracture Behavior of Si-Alloyed Pyrolytic Carbon.- An Analysis of Cyclic Fatigue Effects in Ceramic Matrix Composites.- Fatigue Life Predictions of PZT Using Continuum Damage Mechanics and Finite Element Methods.- Crack Growth in Ferroelectric Ceramics and Actuators under Mechanical and Electrical Loading.- Effects of Residual Stress on Fracture Toughness and Subcritical Crack Growth of Indented Cracks in Various Glasses.- Determination of Threshold Stress Intensity Factor for Sub-Critical Crack Growth in Ceramic Materials by Interrupted Static Fatigue Test.- Fracture Toughness and Subcritical Crack Growth in an Alumina/Silicon Carbide 'Nanocomposite'.- High Temperature Crack Growth in Silicon Nitride with Two Different Grain Sizes under Static and Cyclic Loads.- Simulating Non-Equilibrium Fracture Behavior of Ceramics in Controlled Bending Test.- Molecular Orbital Calculations Comparing Water Enhanced Bond Breakage in Sio2 and Si.- Interface Mechanisms in Ceramic-Ceramic Fibre Composites and Their Relations with Fracture and Fatigue Behaviour.- Fracture Characteristics of SiC Monofilament/SiAION Ceramic Composite.- Onset of Cumulative Damage (First Matrix Cracking) and the Effects of Test Parameters on the Tensile Behavior of a Continuous Fibre-Reinforced Ceramic Composite (CFCC).-Crack Resistance of Ceramic Matrix Composites with Coulomb Friction Controlled Interfacial Processes.- Mechanical Behavior of Large Size Compact Tension Specimens of 2D SiC-SiC Composite Materials.- High Temperature Fracture Resistance and Strength of Ceramic Composites after Thermal Exposure at 1200 oC.- Microcracking in Silicon Carbide-Titanium Diboride Particulate Composites.- Determination of the Critical Stress for Microcracking in Alumina and Alumina Matrix Composites.- Application of a Multiparticle Model to Estimate the Brittle Strength of a Particle Reinforced Composite.- Fracture Behaviour and Toughening of Alumina-Based Composites Fabricated by Microstructural Control.- Fracture Characterization of Silicon Nitride Based Layered Composites.- Modelling Stress Distribution in Brittle Particulate — Brittle Matrix Composites.- Identification of Damage Variable in Ceramic Matrix Composite with Different Behaviour in Tension and Compression.- Thermal Properties and Thermal Stresses in Delaminated Ceramic Matrix Composites.- Interfacial Glass Structure Affecting Micromechanism of Fracture in a Fluorine-Doped Si3N4SiC Composite.- Interfacial Fracture in the Presence of Residual Stresses.- Fracture Behavior of Interphase-Modified Metal/Ceramic Interfaces.- Stresses and Fracture in Ceramic-Metal Joints.- Indentation Cracking of Brittle Thin Films on Brittle Substrates.- Influence of a Functionally Gradient Surface on Cracking in WC/Co Hardmetals.- High-Temperature Failure of Vitreous-Bonded Alumina.- Tensile Creep of Sintered Silicon Nitride Ceramics at Elevated Temperatures.- Damage Creep in SiCf-MLAS Composites.- The Variation of Indentation Fracture with Temperature in Silicon Carbide, Silicon Nitride and Zirconia.- On High Temperature Creep and Damage ofPolycrystalline Ceramics.- Pseudoplastic Deformation and Failure of Y-TZP-AI2O3 Ceramics at High Temperature.- Effect of Remanent Polarization Level on Macrocrack Extension in Lead Zirconate Titanate (PZT).- Authors.
