22D38 - Crystal defects
Course specification | ||||
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Course title | Crystal defects | |||
Acronym | 22D38 | |||
Study programme | Metallurgical Enginering | |||
Module | ||||
Lecturer (for classes) | ||||
Lecturer/Associate (for practice) | ||||
Lecturer/Associate (for OTC) | ||||
ESPB | 5.0 | Status | ||
Condition | Облик условљености | |||
The goal | The aim of this course is acquiring knowledge about fundamental properties of crystal defects – point, line (dislocations) and planar (interfaces and grain boundaries) - and their effect on materials properties and behavior. | |||
The outcome | The expectation is that the acquired knowledge will enable students to develop an understanding of the role of crystal defects in mechanisms of plastic deformation, phase transformations and recrystallization as well as provide a base for the higher-level courses in physical and mechanical metallurgy. | |||
Contents | ||||
Contents of lectures | Point defects: definition and types; Formation energy and equilibrium concentration; Solid state diffusion; The effect on physical properties. Dislocations: Crystal growth and plasticity; Geometric aspects: edge, screw and mixed dislocations; Burgers vector; Elastic properties; Dislocation energy: thermodynamics, partial dislocations – unit dislocation dissociation and stacking faults; Dislocation motion: glide, climb and cross-slip. Dislocation interaction and dislocation sources. Characterization of dislocations – experimental techniques. Planar defects: Surface and interface energy; Anisotropy; Equilibrium crystal shape: Wulff plot; Interface structure: crystallography, models and experimental evidence; Interface phases and transitions; Crystallography and structure of grain boundaries; Grain boundary classification; Grain boundary energy; Grain boundary and interfacial defects; Mobility and mechanisms of interface and grain boundary migration. | |||
Contents of exercises | ||||
Literature | ||||
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Number of hours per week during the semester/trimester/year | ||||
Lectures | Exercises | OTC | Study and Research | Other classes |
3 | ||||
Methods of teaching | Lectures,homework. | |||
Knowledge score (maximum points 100) | ||||
Pre obligations | Points | Final exam | Points | |
Activites during lectures | 30 | Test paper | ||
Practical lessons | Oral examination | 70 | ||
Projects | ||||
Colloquia | ||||
Seminars |