Teacher Angelo Casagrande. Credits Language Italian. Insegnamenti online - IOL. Course Timetable from Sep 23, to Dec 19,

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Teacher Angelo Casagrande. Credits Language Italian. Insegnamenti online - IOL. Course Timetable from Sep 23, to Dec 19, Course Timetable from Sep 23, to Nov 11, The aim of the course is to give the students a sound knowledge of the different classes of materials in order to:.

This course provides the basic knowledge about the technology of manufaturing processes of metallic and ceramic components. Materials science as a link between theoretical and applied disciplines. Materials classification and evolution. Competition and sinergy between materials. Resources and reserves of materials. Energy content and environmental impact of materials. Disposal and recycling of materials.

Materials structure and microstructure. Structure and interatomic bond: covalent, ionic and metallic solids. Intra- and intermolecular bonds in polymeric solids.

Crystal structure of ionic ceramics. Diamond and covalent solids. Silica and silicates. Crystallinity in polimeric solids. Crystal systems and unit cells. Indices of positions, directions and planes in the cubic cell. Structural analysis by XR diffraction techniques.

Structure defects in crystalline solids: vacancies, interstitials, dislocations and grain boundaries. Structure-related properties: density, thermal expansion and elastic behaviour. Elastic moduli and interatomic bond strength. The stiffness of macromolecular solids: thermoplastics, thermosettings and fibers. Elastic properties of composite and foamed materials. Anelasticity and viscoelasticity. Materials microstructure: components, phases and micro-constituents.

Substitutional and interstitials solid solutions. Free energy vs. Binary equilibrium diagrams of metals and ceramics. Ternary diagrams in ceramic technology. Copolymers and polymer blends. Nanostructured materials and related technologies. Solidification of metals: homogeneous and heterogeneous nucleation. Growth morphology and solidification microstructures.

Metal forming by casting techniques. Microstructure and defects of metal castings. Crystalline solidification and glass transition. Vitrification of silicate melts. Liquid-phase sintering. Microstructure of polymeric materials.

Injection moulding and reactive solidification of polymer melts. Film formation in paints and adhesives. Slip casting. Setting and hardening of lime, plaster and cement mortars.

Diffusion controlled solid-phase transformations. The austenite to pearlite transformation. Precipitation from solid solutions. Sintering and devitrification. Theoretical strength of materials. Plastic deformation of metals: dislocations and slip systems. Yield strength, strain hardening and tensile strength of metals.

Strengthening mechanisms in metal alloys. Cold forming of metal components. Recrystallization and grain-growth Hardening and heat treatments of alloy steels.

Precipitation hardening of aluminum alloys. Plastic deformation and cold drawing of polymeric materials. Plastic forming of ceramic pastes. Rupture strength of ceramic materials: the Weibull modulus. Ductile and brittle fracture. Impact and fracture thoughness. The fatigue rupture and creep of materials.

Hot forming of metals. Glass forming. Moulding of thermosetting polymers. Physical properties of materials. Conductive polymers. Intrinsic and extrinsic semiconductors. Semiconductor-based devices.

Dielectric properties: insulators and condensators. Piezoelectricity and electrostriction. Magnetic properties. Soft and hard magnetic materials.

Electromagnetic transducers. Optical properties: photonic materials and systems. Thermal properties: capacity, conductivity and expansion coefficient. Thermal shock in ceramics. Degradation, corrosion and aging of materials. Wet and dry corrosion of metals. Active and passive protection techniques. Thermal and photochemical degradation of polymeric materials.

Chemical corrosion of ceramic materials. Metal joining techniques: Oxyacetylene welding, Gas-tungsten arc welding, Gas-metal arc welding, laser beam welding, resistance welding.

Metals machining. Preliminar size reduction of solids: Rotary dryers, coarse crusher, crushing rolls, solid mixing machines. Conveying of bulk solids: roller conveyor, belt conveyor, bucket elevator, screw conveyor, pneumatic conveyor. Metallographic preparation of steel and cast iron samples followed by optical microscope observation. Image Analysis techniques and generalities on quantitative metallography.

Santocchi, F. The final examination of the course, which aims to achieve the objectives, consists of the synthesis of final evaluations of the different modules:. In the event that the candidate does not reach the minimum target of knowledge in a section of course, this will have to be repeated and overcome, so as to achieve the total final evaluation. See the website of Angelo Casagrande. See the website of Alessandro Morri. See the website of Carla Martini. Search Search Close.


Materials science

Scienza e tecnologia dei materiali. Materials play a crucial role in engineering design and the module on Materials Science and Technology is aimed to supply the student with an engineering background on materials, emphasizing the relationships among materials structure, microstructure and performances and, as a consequence, the potentialities of engineering design able to exploit traditional and innovative materials through the tailoring of their microstructure. A deep understanding of the property-limited selection and design is therefore the main objective of this course. Near the analysis of the science that lies behind, some specific case studies will be exploited to allow the student to understand how properties can affect materials selection and processing.


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Materials Science (the English translation of "Scienza dei materiali")


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