Lecture notes provided by the teacher through the moodle platform.
Learning Objectives
Introduction to the physical chemistry of surfaces. Energy and types of interactions. Surface free energy and surface tension. Types of solids and interaction energies. Experimental methods for the measurement of surface free energy.
Methods of investigation of the structure of solids. Crystals: Bravais lattices, unit cells, Miller indices. Gamma anisotropy in crystalline solids. Wulff method.
Defects in solids: Classification and influence of defects on the physical properties of solids (structure, charge transport, magnetism).
Tribology: friction and wear. Type and quantification of friction. Experimental models and techniques for the study of friction and wear.
Prerequisites
None
Teaching Methods
Total number of hours for Lectures (hours): 48
Further information
No additional info
Type of Assessment
Oral examination, including exercises, calculations and exposition of the topics discussed within the course.
Course program
Introduction to the physical chemistry of surfaces. Energy and types of interactions. Surface free energy and surface tension. Types of solids and interaction energies. Experimental methods for the measurement of surface free energy.
Methods of investigation of the structure of solids. Atomic force microscopy, stm microscopy, electron microscopy, recapitulation of the fundamental concepts of the interaction between light and matter and of diffraction, spectroscopies.
Crystals: Bravais lattices, unit cells, Miller indices. Gamma anisotropy in crystalline solids. Wulff method for determining the equilibrium shape of crystals.
Photoemission and Auger emission. Qualitative and quantitative analyzes. Low-energy electron diffraction (LEED). Kinematic approach. From the LEED image to the periodicity in real space; inversion of the Fourier transform.
Defects in solids: Classification of point defects in metals, semiconductors and crystalline compounds. Influence of defects on the physical properties of solids (structure, charge transport, magnetism).
Tribology: friction and wear. Type and quantification of friction. Experimental models and techniques for the study of friction and wear.