At the end of the course
- The student can explain the meaning of the following concepts used in the description of material properties and the related physics phenomena (knowledge):
- Mechanical properties – mechanical failure; ductile/brittle deformation; intra/intergranular; resilience/toughness; Griffith crack model; stress concentration factor; crack propagation; DBTT; fatigue limit; creep; strain rate; time to rupture; Weibull model
- Thermal properties – heat capacity, thermal expansion, contributions to thermal conductivity – relation with material class; 1D thermal diffusion equation; phonons as carrier of heat; thermoelectricity (Seebeck, Peltier effect)
- Dielectric properties - capacitor; permittivity; susceptibility; dielectric displacement; polarization/polarizability; Clausius-Mossotti equation; electronic/ionic/orientational/ space charge polarization; Lorentz-Lorenz relation; (relation between) piezo/pyro/ferro/antiferroelectricity; potential energy of ferroelectric; ferroelectric hysteresis loop/ saturation/remanent polarization/coercive field
- Electronic properties – macroscopic electronic properties: Ohm’s law; contributions to and temperature dependence of conductivity/resistivity; free electron gas model and its band-diagram; density of states; Fermi energy, Fermi surface; Fermi-Dirac distribution function and role in band-diagram; relation between atomic orbitals and orbital overlap and different bands in electron energy diagram; conduction/valence bands in band-diagram and electron/hole conduction cause of bandgap; direct/indirect bandgap; relation band-diagram with metallic, semiconducting, insulating character of materials; effect of applied electric field on band occupation; intrinsic/extrinsic semiconductor; carrier concentration and relation with conductivity; functioning of p-n junction, LED in terms of band-diagram; DOS of lower dimensional nanostructures;
- Electro-chemistry: redox reactions, galvanic cells, batteries, corrosion, electrolysis, electrocatalysis, Pourbaix-diagrams
- can explain the (non) presence and strength of a specific material property in relation to the atomic and/or larger scale crystal structure (grain size) – (comprehension).
- knows the meaning of symbols used in formulas that describe material properties – (knowledge)
- can apply formulas that relate parameters that describe material properties to parameters that describe the material structure to calculate/estimate values or to explain material parameters from microscopic properties (such as types of atoms, crystal lattice) - (application)
- can interpret measurement results/graphs and extract values of parameters from these graphs – (application)
- can apply the concepts to analyse and explain new measurement data or situations – (analysis)
- can evaluate of the validity of the analysis: can give an appreciation of the limitations of the models learned in relation to a new situation – (evaluation)
- can apply concepts to construct an explanation/model description of observations on material properties in relation to structural properties
- can qualitatively evaluate the implications of sustainability-driven changes in fabrication and use of materials on people, planet and economy (analysis).
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The course Advanced Materials Science & Project deals with the relation between material properties and how these relate to the atoms and atomic structure/composition of the material. The course provides knowledge and insight into the functional properties of various material classes; and it provides understanding of the relations between microstructure and properties of materials.
The course consists of a series of two combined lectures after each other (colstructions).
- he first is a lecture on the structure and functional properties of several material classes (polymer, ceramic and metal).
- In the second part the students make exercises related to the topic of the lecture under supervision of the lecturer.
Each set of combined lectures deals with a different physical phenomenon, which can be material properties such as electrical conductivity or magnetism or physical processes such as diffusion.
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