F4H5101 Fasomvandlingar, kurs I 6,0 hp

Basic Concepts

-Survey of phase transformations in solids

- Transformations of various orders

- Homogeneous and heterogeneous reactions

- The concept of nucleation-and-growth

- Classification of transformations

- Activated processes

Phenomena at Crystal Surfaces and Interfaces

-Coherency in nucleation

- Crystal growth from vapour phase

- Faceted growth

- Role of structure of interface

Diffusion Controlled Transformations
under Local Equilibrium

- Mathematics of diffusion

- Exact and approximate solutions

- Effect of pressure, surface tension and stresses

Stability Problems

- Morphological stability

- Stability principles in dynamic systems

- Spinodal decomposition

Nucleation, Coarsening and Inverse Coarsening 

- Concept of critical size

- Theory of fluctuations

- The Lifshitz-Slyozov-Wagner theory

- Effect of stresses - inverse coarsening

Interface Control in Phase Transformation

- Finite interface mobility

- Solute drag in grain growth

- Solute trapping

- Transition to partitionless transformations

- Massive transformations

Martensitic and Massive Transformations

- Thermodynamics of partitionless transformations

- The role of the phase interface

- Coherency and anti coherency dislocations

- Nucleation of martensite

- Stress induced martensite

Higher-Order Phase Transformations

- Landau-Lifshitz treatment

- Internal variables

- Ordering reactions

- Amorphous solidification and glass transition

Antagen till forskarutbildning

All graduate students with interest in materials science are welcome to follow the course. However, some basic knowledge in physical chemistry and solid state physics is required.

När kurs inte längre ges har student möjlighet att examineras under ytterligare två läsår.

Examinator beslutar, baserat på rekommendation från KTH:s handläggare av stöd till studenter med funktionsnedsättning, om eventuell anpassad examination för studenter med dokumenterad, varaktig funktionsnedsättning.

Examinator får medge annan examinationsform vid omexamination av enstaka studenter.

Written material and home-work problems will be handed out at each lecture. All active students are required to study the material and to solve the home-work problems before next discussion and lecture.

 A written exam will be given after the last lecture. At the end of the course each student is required to hand in a literature review of some subject.

Joakim Odqvist

• Vid grupparbete har alla i gruppen ansvar för gruppens arbete.
• Vid examination ska varje student ärligt redovisa hjälp som erhållits och källor som använts.
• Vid muntlig examination ska varje student kunna redogöra för hela uppgiften och hela lösningen.