Riassunto
These volumes, 7 and 8, of Fracture Mechanics of Ceramics constitute the proceedings of an international symposium on the fracture mechanics of ceramic materials held at Virginia Polytechnic Institute and State University, Blacksburg, Virginia on June 19, 20 and 21, 1985. These proceedings constitute the fourth pair of volumes of a continuing series of conferences. The theme of this conference, as the previous three, focused on the mechanical behavior of ceramic materials in terms of the characteristics of cracks, particularly the roles which they assume in the fracture process. The 78 contributed papers by over 100 authors and co-authors represent the current state of the field. They address many of the theoretical and practical problems of interest to those concerned with brittle fracture. The program chairmen gratefully acknowledge the financial assistance for the Symposium provided by the EXXON Foundation, the Army Research Office, the National Science Foundation, and the Office of Naval Research. Without their support, this conference simply would not have been possible. The suggestions of Drs. J. C. Hurt, R. C. Pohanka, and L. Toth were particularly helpful in assuring the" success of this symposium. Special appreciation is extended to Professor J. I. Robertson, C. P. Miles Professor of History, whose presentation following the banquet on the American Civil War was very well received by the audience. Finally, we wish to also thank our joint secretaries, especially Karen Snider, for their patience and help in finally bringing these proceedings to press.
Contenuti
Fracture Mechanics and Microstructures.- Microstructure and the Strength of Ceramics.- Mechanical Behavior of Lightweight Ceramics.- Precipitation and Toughness in Alumina-Rich Spinel Single Crystals.- Microfracture Behaviour of Fine Grained Alumina Stupied Studied by Indentation and Acoustic Emission in Various Environments.- Microfracture Process During Fracture Toughness Testing in Al2O3 Ceramics Evaluated by AE Source Characterization.- Effect of Static Loading on the Fracture Toughness of Indentation-Precraked Alumina.- Non-Lubricated Sliding Wear of Al2O3, PSZ, and SiC.- Mixed-Mode Fracture of Ceramics.- Some Fracture Properties of Alumina-Containing Electrical Porcelains.- Transformation Toughening in The Al2O3-Cr2O3/ZrO2-HfO2 System: The Effect of ZrO2-HfO2 Content.- Strength-Toughness Relationships for Transformation Toughened Ceramics.- Tensile Strength and Notch Sensitivity of Mg-PSZ.- Fracture Mechanisms in Lead Zirconate Titanate Ceramics.- Loading-Unloading Techniques for Determining Fracture Parameters of Brittle Materials Utilizing Four-Point Bend, Chevron-Notched Specimens.- Application of The Potential Drop Technique to the Fracture Mechanics of Ceramics.- A Comparison of Vickers and Knoop Indentations in Soda-Lime Glass.- Ceramics-To-Metal Bonding From a Fracture Mechanics Perspective.- Observed Changes in Fracture Strength Following Laser Irradiation and Ion Beam Mixing of Ni Overlayers on Sintered Alpha-SiC.- Sub-Critical Crack Growth, Surface Energy and Fracture Toughness of Brittle Materials.- Microstructural Effects on The Subcritical Crack Growth in Polycrystalline ??-Alumina.- Crack Growth in Single-Crystal Silicon.- A Fracture Mechanics and Non-Destructive Evaluation Investigation of the Subcritical-Fracture Process in Rock.- Static Fatigue Resistance of Hot Pressed Silicon Nitride.- Time Dependent Failure of Ceramic Materials in Sustained and Fatigue Loading.- The Role of Surface Forces in Fracture.- Slow Crack Growth in Sintered Silicon Nitride.- Computer Simulation of The Growth of Small Surface Flaws in Dynamic Fatigue.- Uniaxial Tensile Fatigue Testing of Sintered Silicon Carbide Under Cyclic Temperature Change.- Effect of Surface Corrosion on Glass Fracture.- Contributors.- Authors.
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