# Crystallography and Crystal Defects

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Februar 2012

## Beschreibung

### Beschreibung

The aim of this new edition of Crystallography and Crystal Defects is to communicate the modern concepts of crystallography in a clear, succinct, manner and to put these concepts into use in the description of line and planar defects in crystalline materials, quasicrystals and crystal interfaces. Since the first edition of this book, understanding of crystal defects such as dislocations, stacking faults, twin, grain and interphase boundaries and their effect on the mechanical and electrical properties of materials has grown enormously, and this has been accompanied by a total change in style of the way in which both research and teaching are carried out through the use of the fast digital computer. This new edition takes account of this change and a number of new topics are included, for example piezoelectricity, liquid crystals, nanocrystalline concepts, incommensurate materials and the structure of foamed and amorphous materials. The topic of quasicrystalline materials has been completely rewritten, and the data tables and references have been fully updated. Reinforcing its unrivalled position as the core text for teaching crystallography and crystal defects, each chapter includes problem sets with brief numerical solutions at the end of the book. Detailed worked solutions, supplementary lecture material and computer programs for crystallographic calculations are provided online.### Inhaltsverzeichnis

Preface xiiiPart I Perfect Crystals 1

1 Lattice Geometry 3

1.1 The Unit Cell 3

1.2 Lattice Plane and Directions 7

1.3 The Weiss Zone Law 11

1.4 Symmetry Elements 14

1.5 Restrictions on Symmetry Elements 16

1.6 Possible Combinations of Rotational Symmetries 21

1.7 Crystal Systems 26

1.8 Space Lattices (Bravais Lattices) 26

Problems 37

Suggestions for Further Reading 40

References 41

2 Point Groups and Space Groups 43

2.1 Macroscopic Symmetry Elements 43

2.2 Orthorhombic System 49

2.3 Tetragonal System 52

2.4 Cubic System 53

2.5 Hexagonal System 56

2.6 Trigonal System 59

2.7 Monoclinic System 63

2.8 Triclinic System 65

2.9 Special Forms in the Crystal Classes 67

2.10 Enantiomorphous Crystal Classes 68

2.11 Laue Groups 69

2.12 Space Groups 69

2.13 Nomenclature for Point Groups and Space Groups 78

2.14 Groups, Subgroups and Supergroups 79

2.15 An Example of a Three-Dimensional Space Group 79

Problems 82

Suggestions for Further Reading 84

References 84

3 Crystal Structures 85

3.1 Introduction 85

3.2 Common Metallic Structures 86

3.3 Related Metallic Structures 93

3.4 Other Elements and Related Compounds 95

3.5 Simple MX and MX2 Compounds 98

3.6 Other Inorganic Compounds 104

3.7 Interatomic Distances 110

3.8 Solid Solutions 110

3.9 Polymers 113

3.10 Additional Crystal Structures and their Designation 116

Problems 119

Suggestions for Further Reading 121

References 122

4 Amorphous Materials and Special Types of Crystal-Solid Aggregate 123

4.1 Introduction 123

4.2 Amorphous Materials 123

4.3 Liquid Crystals 126

4.4 Geometry of Polyhedra 129

4.5 Icosahedral Packing 134

4.6 Quasicrystals 135

4.7 Incommensurate Structures 137

4.8 Foams, Porous Materials and Cellular Materials 137

Problems 139

Suggestions for Further Reading 139

References 140

5 Tensors 141

5.1 Nature of a tensor 141

5.2 Transformation of components of a vector 142

5.3 Dummy Suffix Notation 145

5.4 Transformation of Components of a Second-Rank Tensor 146

5.5 Definition of a Tensor of the Second Rank 148

5.6 Tensor of the Second Rank Referred to Principal Axes 149

5.7 Limitations Imposed by Crystal Symmetry for Second-Rank Tensors 153

5.8 Representation Quadric 155

5.9 Radius-Normal Property of the Representation Quadric 159

5.10 Third- and Fourth-Rank Tensors 161

Problems 161

Suggestions for Further Reading 163

References 163

6 Strain, Stress, Piezoelectricity and Elasticity 165

6.1 Strain: Introduction 165

6.2 Infinitesimal Strain 166

6.3 Stress 170

6.4 Piezoelectricity 177

6.5 Elasticity of Crystals 181

Problems 193

Suggestions for Further Reading 196

References 196

Section II Imperfect Crystals 197

7 Glide and Texture 199

7.1 Translation Glide 199

7.2 Glide Elements 203

7.3 Independent Slip Systems 208

7.4 Large Strains of Single Crystals: The Choice of Glide System 218

7.5 Large Strains: The Change in the Orientation of the Lattice During Glide 222

7.6 Texture 228

Problems 235

Suggestions for Further Reading 237

References 237

8 Dislocations 241

8.1 Introduction 241

8.2 Dislocation Motion 247

8.3 The Force on a Dislocation 249

8.4 The Distortion in a Dislocated Crystal 253

8.5 Atom Positions Close to a Dislocation 258

8.6 The Interaction of Dislocations with One Another 261

Problems 265

Suggestions for Further Reading 266

References 267

9 Dislocations in Crystals 269

9.1 The Strain Energy of a Dislocation 269

9.2 Stacking Faults and Partial Dislocations 277

9.3 Dislocations in c.c.p. Metals 280

9.4 Dislocations in the Rock Salt Structure 288

9.5 Dislocations in Hexagonal Metals 290

9.6 Dislocations in b.c.c. Crystals 295

9.7 Dislocations in Some Covalent Solids 297

9.8 Dislocations in Other Crystal Structures 301

Problems 301

Suggestions for Further Reading 303

References 303

10 Point Defects 305

10.1 Introduction 305

10.2 Point Defects in Ionic Crystals 309

10.3 Point Defect Aggregates 310

10.4 Point Defect Configurations 312

10.5 Experiments on Point Defects in Equilibrium 317

10.6 Experiments on Quenched Metals 321

10.7 Radiation Damage 324

10.8 Anelasticity and Point Defect Symmetry 326

Problems 329

Suggestions for Further Reading 331

References 331

11 Twinning 335

11.1 Introduction 335

11.2 Description of Deformation Twinning 337

11.3 Examples of Twin Structures 342

11.4 Twinning Elements 350

11.5 The Morphology of Deformation Twinning 354

Problems 358

Suggestions for Further Reading 360

References 360

12 Martensitic Transformations 363

12.1 Introduction 363

12.2 General Crystallographic Features 364

12.3 Transformation in Cobalt 366

12.4 Transformation in Zirconium 369

12.5 Transformation of Indium-Thallium Alloys 374

12.6 Transformations in Steels 379

12.7 Transformations in Copper Alloys 382

12.8 Transformations in Ni-Ti-Based Alloys 383

12.9 Transformations in Nonmetals 384

12.10 Crystallographic Aspects of Nucleation and Growth 385

Problems 387

Suggestions for Further Reading 388

References 389

13 Crystal Interfaces 391

13.1 The Structure of Surfaces and Surface Free Energy 391

13.2 Structure and Energy of Grain Boundaries 397

13.3 Interface Junctions 409

13.4 The Shapes of Crystals and Grains 414

13.5 Boundaries between Different Phases 420

13.6 Strained Layer Epitaxy of Semiconductors 424

Problems 429

Suggestions for Further Reading 431

References 431

Appendix 1 Crystallographic Calculations 435

A1.1 Vector Algebra 435

A1.2 The Reciprocal Lattice 440

A1.3 Matrices 443

A1.4 Rotation Matrices and Unit Quaternions 448

References 449

Appendix 2 The Stereographic Projection 451

A2.1 Principles 451

A2.2 Constructions 455

A2.3 Constructions with the Wulff net 460

A2.4 Proof of the Properties of the Stereographic Projection 465

References 468

Appendix 3 Planar Spacings and Interplanar Angles 469

A3.1 Planar Spacings 469

A3.2 Interplanar Angles 472

Appendix 4 Transformation of Indices Following a Change of Unit Cell 473

A4.1 Change of Indices of Directions 473

A4.2 Change of Indices of Planes 475

A4.3 Example 1: Interchange of Hexagonal and Orthorhombic Indices for Hexagonal Crystals 476

A4.4 Example 2: Interchange of Rhombohedral and Hexagonal Indices 477

Appendix 5 Slip Systems in C.C.P. and B.C.C. Crystals 481

A5.1 Independent Glide Systems in C.C.P. Metals 481

A5.2 Diehl's Rule and the OILS Rule 483

A5.3 Proof of Diehl's Rule and the OILS Rule 485

References 486

Appendix 6 Homogeneous Strain 487

A6.1 Simple Extension 488

A6.2 Simple Shear 488

A6.3 Pure Shear 489

A6.4 The Relationship between Pure Shear and Simple Shear 489

Appendix 7 Crystal Structure Data 491

A7.1 Crystal structures of the Elements, Interatomic Distances and Ionic radii at Room Temperature 491

A7.2 Crystals with the Sodium Chloride Structure 495

A7.3 Crystals with the Caesium Chloride Structure 496

A7.4 Crystals with the Sphalerite Structure 497

A7.5 Crystals with the Wurtzite Structure 497

A7.6 Crystals with the Nickel Arsenide Structure 497

A7.7 Crystals with the Fluorite structure 498

A7.8 Crystals with the Rutile Structure 498

Appendix 8 Further Resources 499

A8.1 Useful Web Sites 499

A8.2 Computer Software Packages 499

Brief Solutions to Selected Problems 501

Index 509

### Portrait

Anthony Kelly is an Emeritus Professor and a Distinguished Research Fellow in the Department of Materials Science and Metallurgy at Cambridge University (UK). Professor Kelly has been employed in universities, in governmental science (National Physical Laboratory) and in industry (ICI). He was Vice-Chancellor of the University of Surrey (UK) and while there he established the Surrey Research Park. In 1963 with Robin Nicholson he produced the first synthesis relating type of dispersion and work hardening characteristics of metals. This has become an SCI citation classic. Since 2000 his main research interest is in using composite principles to control and to modify the thermal expansion coefficients of materials. He is the principal author of the two previous very successful editions of "Crystallography and Crystal Defects" and of other books and has a worldwide reputation in materials science. Dr. Kevin Knowles is senior lecturer at Department of Materials Science and Metallurgy at the University of Cambridge (UK). He received his DPhil at Oxon (UK) on aspects of the crystallography of martensitic transformations. Dr. Knowles has lectured and supervised a course on crystallography to third year undergraduates and he lectures and supervises a course on plasticity and deformation processing to undergraduates. The research interests of his group focus on the relationship between microstructure and the mechanical and electronic properties of engineering ceramics.### Pressestimmen

"Summing Up: Recommended. Upper-division undergraduates and above." ( Choice , 1 August 2012)EAN: 9780470750148

ISBN: 0470750146

Untertitel: 2 Rev ed.
black & white illustrations, black & white line drawings, black & white tables, figures.
Sprache: Englisch.

Verlag: John Wiley and Sons Ltd

Erscheinungsdatum: Februar 2012

Seitenanzahl: 536 Seiten

Format: kartoniert

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