Dislocations are lines of irregularity in the structure of a solid analogous to the bumps in a badly laid carpet. Like these bumps they can be easily moved, and they provide the most important mechanism by which the solid can be deformed. They also have a strong influence on crystal growth and on the electronic properties of semiconductors.
· Influence of dislocations on piezoelectric behavior
· New mechanisms for hardening in twinned crystals
· Bringing theories of martensite transformation into agreement
· Atomic scale motion of dislocations in electron microscopy
· Dislocation patterns deduced from X-ray diffraction
· Role of dislocations in friction
· Dislocation motion in quasicrystals
1. 1 General introduction 2. 2 Collective effects of dislocations 3. 3 Intermittent collective effects and their characterization 4. 4 Recent advances in statistical description of dislocation dynamics 5. 5 Dynamical approach to collective behavior of dislocations 6. 6 Dynamical approach to modeling the Portevin–Le Chatelier effect 7. 7 Discussion and outlook 8. Acknowledgements 9. Chapter 74: Topological Modelling of Martensitic Transformations 10. Chapter 75: Dislocations and Twinning in Face Centred Cubic Crystals 11. 1 Introduction 12. 2 Crystallography of deformation twinning 13. 3 Twinning elements in the fcc lattice 14. 4 Description of twinning transformation - lattice correspondence 15. 5 Twinning transformation of the perfect lattice – geometry of the transformation of dislocations 16. 6 Geometry of plastic deformation of single crystals - crystallographic notation 17. 7 Methodology of TEM analysis 18. 8 TEM observations of the dislocation substructure prior to twinning 19. 9 Twinning transformations of dislocations 20. 10 New elements of the twinned structure 21. 11 The strength of twinned crystal 22. 12 Summary 23. Acknowledgments 24. Chapter 76: Elasticity, Dislocations and their Motion in Quasicrystals 25. Chapter 77: Experimental Studies of Dislocation Core Defects 26. Chapter 78: In situ Nanoindentation in a Transmission Electron Microscope 27. Chapter 79: White Beam Microdiffraction and Dislocations Gradients 28. 1 Introduction: The need for white-beam microdiffraction 29. 2 Dislocation arrangements 30. 3 Dislocation-induced redistribution of scattering intensity 31. 4 White beam analysis of the orientation space 32. 5 Determination of elastic strain 33. 6 Example applications of white beam diffraction 34. 7 Instrumentation 35. 8 Concluding remarks 36. Acknowledgements 37. Chapter 80: X-Ray Imaging of Phonon Interaction with Dislocations 38. Author Index 39. Subject Index
Dislocations are lines of irregularity in the structure of a solid analogous to the bumps in a badly laid carpet. Like these bumps they can be easily moved, and they provide the most important mechanism by which the solid can be deformed. They also have a strong influence on crystal growth and on the electronic properties of semiconductors.
· Influence of dislocations on piezoelectric behavior
· New mechanisms for hardening in twinned crystals
· Bringing theories of martensite transformation into agreement
· Atomic scale motion of dislocations in electron microscopy
· Dislocation patterns deduced from X-ray diffraction
· Role of dislocations in friction
· Dislocation motion in quasicrystals
1. 1 General introduction 2. 2 Collective effects of dislocations 3. 3 Intermittent collective effects and their characterization 4. 4 Recent advances in statistical description of dislocation dynamics 5. 5 Dynamical approach to collective behavior of dislocations 6. 6 Dynamical approach to modeling the Portevin–Le Chatelier effect 7. 7 Discussion and outlook 8. Acknowledgements 9. Chapter 74: Topological Modelling of Martensitic Transformations 10. Chapter 75: Dislocations and Twinning in Face Centred Cubic Crystals 11. 1 Introduction 12. 2 Crystallography of deformation twinning 13. 3 Twinning elements in the fcc lattice 14. 4 Description of twinning transformation - lattice correspondence 15. 5 Twinning transformation of the perfect lattice – geometry of the transformation of dislocations 16. 6 Geometry of plastic deformation of single crystals - crystallographic notation 17. 7 Methodology of TEM analysis 18. 8 TEM observations of the dislocation substructure prior to twinning 19. 9 Twinning transformations of dislocations 20. 10 New elements of the twinned structure 21. 11 The strength of twinned crystal 22. 12 Summary 23. Acknowledgments 24. Chapter 76: Elasticity, Dislocations and their Motion in Quasicrystals 25. Chapter 77: Experimental Studies of Dislocation Core Defects 26. Chapter 78: In situ Nanoindentation in a Transmission Electron Microscope 27. Chapter 79: White Beam Microdiffraction and Dislocations Gradients 28. 1 Introduction: The need for white-beam microdiffraction 29. 2 Dislocation arrangements 30. 3 Dislocation-induced redistribution of scattering intensity 31. 4 White beam analysis of the orientation space 32. 5 Determination of elastic strain 33. 6 Example applications of white beam diffraction 34. 7 Instrumentation 35. 8 Concluding remarks 36. Acknowledgements 37. Chapter 80: X-Ray Imaging of Phonon Interaction with Dislocations 38. Author Index 39. Subject Index
