After the successful completion of the course the students:
-Are able to describe quantitatively the macroscopic behavior of materials concerning their mechanical, electrical, thermal,magnetic and optical properties
-Are able to understand the relations between crystalline structure or microstructure and the macroscopic properties (mechanical, electrical, thermal, magnetic, optical)
-Are able to proposed changes in the chemical composition, crystalline structure or microstructure so that its properties will be varied towards the desired direction
-Are able to select the best material for a certain application
Course Content (Syllabus)
Chapt. 15: Diffusion
Macroscopic and microscopic approach of steady state or non-steady state diffusion processes. Relation between the diffusion coefficient and the diffusion mechanism or the crystal structure and morphology of materials.
Chapt. 16: Mechanical properties of materials
Definitions and comlete analysis of the stress-strain curves of metals and ceramics. Hardness of materials
Chapt. 17: Understanding of the mechanical behavior of materials
Fundamental processes and relations between the macroscopic mechanical behavior with the microstructure of materials-technologies for the strengthening of materials-mechanical properties of non-equilibrium alloys in the Fe-C system.
Chapt. 18: Electrical properties of materials
The electrical properties of materials (metals, semiconductors, insulators) in relation to their microstructure-band theory, dopants in semiconductors, extrinsic semiconductivity in oxides.
Chapt.19: Magnetic properties of materials
Origin of magnetism in materials-classification of materials according to their magnetic behaviour, relation between magnetic behaviour and microstructure-modern applications of magnetic materials.
Chapt. 20: Dielectric behavior of solids
Macroscopic and microscopic approach of the dielectric behavior of materials. Polarization mechanisms and their dependency on the structure of the materials. Multiphase dielectric materials
Chapt. 21: Thermal properties of materials
The thermal conductivity, the linear expansion coefficient and the thermal capacity of materials-relation with the material type and microstructure and applications in material selection and design issues.
Chapt. 22: Optical properties of solids
Basic interaction between optical elecromagnetic radiation and matter and their relation with the crystal structure and the morphology and microstructure of solids.
Chapt. 23: Strengthening of solids
Common technologies and mechanisms for the strengthening of metals and ceramics (i.e. dopant additions, cold working, microstructure optimization). Mechanical properties of equilibrium and non-equilibrium materials in the Iron-Carbon system.
Chapt. 24: Materials in modern devices and systems
Principles of modern applications based on the properties of materials discussed in previous chapters (i.e. diodes, digital information storage, photovoltaics, fuel cells, batteries, sensors, optical fibers, redox material behavior in chemical processes of energetic or environmental importance.
behaviour and properties of materials, phase diagrams and transformations, mechanical properties, electric properties, thermal properties, magnetic properties
Teaching is supported by the projection of electronic transparencies (powerpoint). During the lessons, use is being made of specially designed educational sites (i.e. educational video clips with three dimensional structures etc.) that are available for this purpose. All course lectures are also available in video and occasionally may provided, via teleconference, to students that had reasons not to attend. Supporting material (notes, special topics,questions for deeper understanding etc.) is provided electronically to the students through the course site ( http://philon.cheng.auth.gr/lmt/ety2.html). The same holds for any kind of announcements concerning the course. In addition all students may have electronic access to all previous final or intermediate examination subjects, solved with detailed explanations.
Additional bibliography for study
Michael Ashby, Hugh Shercliff, David Cebon, "Υλικά: Μηχανική, Επιστήμη, Επεξεργασία και Σχεδιασμός"
ISBN: 978-960-461-449-3, Εκδόσεις Κλειδάριθμος
William D. Callister, Jr. "Επιστήμη και Τεχνολογία των Υλικών",
ISBN: 978-960-8050-90-1, Εκδόσεις Τζιόλα