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Course, academic year 2018/2019
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Crystal Lattice Defects - NFPL067
Title in English: Poruchy krystalové mříže
Guaranteed by: Department of Physics of Materials (32-KFM)
Faculty: Faculty of Mathematics and Physics
Actual: from 2004 to 2018
Semester: summer
E-Credits: 2
Hours per week, examination: summer s.:0/1 C [hours/week]
Capacity: unlimited
Min. number of students: unlimited
State of the course: taught
Language: Czech
Teaching methods: full-time
Guarantor: prof. RNDr. Zuzanka Trojanová, DrSc.
Classification: Physics > Solid State Physics
Annotation -
Last update: doc. Dr. rer. nat. Robert Král, Ph.D. (17.02.2013)
Point defects in metals, ionic crystals and semiconductors. Equilibrium and non-equilibrium concentrations. Dislocations. Stacking faults. Dissociated dislocations. Coherent and incoherent principitates.
Course completion requirements - Czech
Last update: doc. Dr. rer. nat. Robert Král, Ph.D. (07.06.2019)

Zápočet je udělován na základě aktivní účasti na semináři a úspěšného absolvování závěrečného testu.

Literature - Czech
Last update: doc. Dr. rer. nat. Robert Král, Ph.D. (17.02.2013)

1. Dislokace v pevných látkách. Pokroky fyziky pevných látek. sv. VI. Academia Praha 1961.

2. P. Kratochvíl, P. Lukáč, B. Sprušil: Úvod do fyziky kovů díl I. SNTL/Alfa Praha 1984.

3. V. Valvoda, M. Polcarová, P. Lukáč: Základy strukturní analýzy.UK 1992.

4. J. Čadek: Fyzika kovů. Část 2. Dislokace v krystalech. VŠB Ostrava 1980.

Syllabus -
Last update: T_KFK (22.05.2003)

1. Point defects. Vacancies. Interstitials. Schottky defects. Frenkel defects. Equilibrium concentrations of point defects. Non-equilibrium concentrations of point defects. Point defects in crystals with covalent and ionic binding. 2. Dislocations. Edge and screw dislocations. Burgers loop. Burgers vector. Stress field of dislocations. Energy of dislocations. Line energy of dislocations. Force on dislocation. Reactions between dislocations. Frank-Read dislocation source. Conservative and non-conservative dislocation motion. Intersection of dislocations. Interaction of dislocations with point defects. Dislocations in various crystal structures. 3. Stacking faults. Stacking faults in fcc and hcp structures. Partial dislocations. Grain boundary, subgrain boundary. Types and characteristics of interfaces. Polygonisation. Small angle boundaries. Energy of grain boundary. High angle boundary. Dislocations in grain boundary. 4. Volume defects. Coherent and non-coherent precipitates.

 
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