Description

In this volume, the shock compression technology of materials is described in parallel with the latest research results and their background. In the past, this type of technology was developed in connection with military techniques by certain particular research organizations. For this reason, researchers of materials in general have had less opportunity to make use of the technology. The conventional technology of shock compression has now been established, and is recognized as being remarkably useful as a means of materials science study. The feasibility of shock compression technology is dealt with in this book, as well as the latest research results for general material scientists. The shock synthesis of ceramics and intermetallic compounds, as well as shock compression behavior, are also described. In contrast to conventional works of this kind, this book describes shock compression studies performed by material scientists. 1 Heterogeneous Distribution of Temperatures and Pressures in the Shock Recovery Fixtures and its Utilization to Materials Science Study.- 1 Introduction.- 2 Reasonable size of recovery fixture.- 3 Sock wave reflection in solids.- 4 Recovery assembly of a very thin specimen, sandwiched between high impedance materials.- 5 Recovery fixture having thick specimen chamber.- 5.1 Gun recovery experiment.- 5.2 Explosive recovery experiment.- 6 Numerical simulation of shock compression in the recovery capsule.- 7 Shock compression of a solid by means of converging shock waves.- 7.1 Simulation of conically converging shock wave in the rod-in-cylinder structure.- 7.2 Shock compression of iron by using the conically converging technique.- 8 Conclusions.- 2 Dynamic Synthesis of Superhard Materials.- 1 Introduction.- 2 Dynamic synthesis of super hard materials.- 3 Considerations of synthesis mechanism.- 4 Conclusions.- 3 Solid State Reactivity of Shock-Processed Solids.- 1 Introduction.- 2 Shock modification of shock-processed solids.- 3 Single-component system.- 3.1 Solid-solid interaction.- 3.2 Solid-liquid interactions.- 3.3 Solid-gas interactions.- 4 Multiple-component systems.- 4.1 Conventional reaction processing.- 4.2 Shock compression processing.- 5 Summary and concluding remarks.- 4 Shock-Induced Chemical Reactions in Inorganic Powder Mixtures.- 1 Introduction.- 2 Materials synthesis.- 2.1 Aluminades.- 2.2 Diamond %.- 2.3 Diamond/ceramics composites.- 3 Computational modeling.- 4 Conclusions.- 5 Shock Effects on Structural and Superconducting Properties of High Tc Oxides.- 1 Introduction.- 2 Specific features of high Tc oxides as type II superconductor.- 3 Mechanical and chemical effects of shock waves on high Tc oxides.- 3.1 Shock synthesis and decomposition.- 3.2 Shock compaction.- 3.3 Shock-induced strain.- 3.4 Deformation textures and induced defects.- 4 Shock effects on superconducting properties.- 4.1 Shock effects on Tc.- 4.2 Effect on pinning energy.- 5 Concluding remarks.- 6 Shock compression studies on ceramic materials.- 1 Introduction.- 2 Experimental facilities combined with the keyed-powder gun.- 2.1 Keyed- powder gun.- 2.2 Inclined-mirror method.- 2.3 Manganin-gauge method.- 2.4 Electromagnetic-gauge method.- 3 Shock compression studies oa selected ceramics.- 3.1 Alumina (A1203).- 3.2 Zirconia (Zr02).- 3.3 Silicon nitride (Si3N4).- 4 Phenomenological discussion on the shock-yielding phenomena of brittle materials.- 4.1 Some problems in experimental and analysis of shock compression of solids.- 4.2 Classification of the shock-yielding phenomena of solids.- 4.3 Correlation with some crystal state and thermal property.- 5 Concluding remarks.- 7 The role of Thermal Energy in Shock Consolidation.- 1 Introduction.- 2 Energy deposition during shock processing.- 3 Experimental techniques.- 3.1 Cylindrical system.- 3.2 Sawaoka system.- 4 Consolidation experiments: Results and discussion.- 4.1 Hot shock consolidation.- 4.2 Shock consolidation followed by annealing or hot isostatic pressing.- 4.3 Reaction-assisted shock consolidation.- 5 Conclusions.- 8 A New Processing for the Self- propagating High Temperature Synthesis (SHS) Combined with Shock Compression Technique.- 1 Introduction.- 2 Explosive treatment of final SHS products.- 3 Shock wave effects in starting SHS compositions.- 4 Concomitant occurrence of SHS and explosive pressing.- 5 Conclusions.- 9 Shock wave interaction in solid materials.- 1 Introduction ~.- 2 Gas gun based methods of realizing wave interaction.- 2.1 Shock wave registration system.- 2.2 New procedure of generating shock convergence or collision.- 3 Symmetrically converging cylindrical shock waves in solids.- 3.1 Approximate theory of converging shock waves in condensed media.- 3.2 Converging shock wave: a unique application.- 4 Collision of plane shock waves and Mach stem produced by conical convergence.- 4.1 Regular and irregular reflection.- 4.2 Experimental procedures.- 4.3 Results and discussion.- 5 Concluding remarks.