Unit MATERIALS TECHNOLOGIES
- Course
- Industrial engineering
- Study-unit Code
- GP005008
- Curriculum
- In all curricula
- Teacher
- Andrea Di Schino
- CFU
- 12
- Course Regulation
- Coorte 2022
- Offered
- 2023/24
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa integrata
METALLURGIC TECHNOLOGIES
| Code | GP005020 |
|---|---|
| CFU | 6 |
| Teacher | Andrea Di Schino |
| Teachers |
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| Hours |
|
| Learning activities | Affine/integrativa |
| Area | Attività formative affini o integrative |
| Academic discipline | ING-IND/21 |
| Type of study-unit | Obbligatorio (Required) |
| Language of instruction | italian |
| Contents | The course deals metallic materials fabrication processes with particular attention to iron based alloys production. Starting from chemical physics principles, the ladle furnace and electric furnace processes will be deeply analyzed, with emphasis to the material properties achievable by them |
| Reference texts | The text will be given directly by the teacher in form of slides. |
| Educational objectives | Ability in right process choosing as a function of the materials properties |
| Prerequisites | Principles of chemistry |
| Teaching methods | Frontal lessons |
| Learning verification modality | Oral examination |
| Extended program | 1. Iron based alloys 2. Metals elaboration methods 3. Iron alloys production processes 4. Chemical physics principles for iron alloys 5. Fe oxides and Fe-O diagram 6. The cast iron 7. The ladle furnace process 8. Steels 9. The steel making process 10. The electric furnace process |
TECHNOLOGIES FOR POLIMERIC MATERIALS
| Code | GP005019 |
|---|---|
| CFU | 6 |
| Teacher | Luigi Torre |
| Teachers |
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| Hours |
|
| Learning activities | Affine/integrativa |
| Area | Attività formative affini o integrative |
| Academic discipline | ING-IND/22 |
| Type of study-unit | Obbligatorio (Required) |
| Language of instruction | Italian |
| Contents | Introduction., Polymerization Viscoelasticity, Rheology and Rheometry. Polymer crystals. tg Characterization of Polymers: thermal analysis Mechanical properties Solubility of polymers. Processing of polymeric materials, |
| Reference texts | Fondamenti di struttura, proprietà e tecnologia dei polimeri a cura di Enrico Pedemonte http://nuovacultura.it/catalogo/fondamenti-struttura-proprieta-tecnologia-dei-polimeri/ R. J. Young and P.A. Lowel: Indroduction to Polymers. Chapman ed. F. Rodriguez: “Principles of Polymer Systems” Mc Graw Hill |
| Educational objectives | Provide the student with knowledge on the main aspects of the characteristics, properties and technologies of polymeric materials. Starting from the definitions and chemical-physical characteristics of polymeric materials, the synthesis processes of polymers, their properties, characterization and their behavior will be studied and the main processes for the production |
| Prerequisites | Material Science and technology, Chemistry Physcics and Math |
| Teaching methods | Frontal lessons and exercises |
| Learning verification modality | Written and Oral Exam, Midterm examination |
| Extended program | Introduction. Structure, and classification: thermoplastic polymers, thermosetting polymers, homo and co-polymers, molecular weight and molecular weight distribution. commodity polymers, techno polymers Synthesis of polymers. Step polymerization: Introduction, reaction mechanism. Carothers theory, Flory theory (most probable distribution), kinetics, poly-condensation: Carothers gelling theory and Flory gelling theory. Chain polymerization: Reaction mechanism, kinetics, activation energy, average degree of polymerization, self-acceleration, chain transfer, effects of temperature, inhibition and delay. Copolymerization: Classification of copolymers. Composition equation of a copolymer, fa-Fa plot. Azeotrope blend. Determination of the amount of unreacted monomer. Viscoelasticity: Definitions. Variation of stress and strain over time. Maxwell model; Voigt (or Kelvin) model; Standard Linear Solid. Boltzman superposition principle. Rheology and Rheometry: rheological behavior of polymers viscosity measurement of polymer melts, time temperature superposition principle, WLF equation. Semi-crystalline polymers, spherulites, degree of crystallinity, crystal thickness and orientation, thermodynamics of crystallization and molecular mechanism, Hoffman theory. Avrami law. Melting, factors affecting the meting temperature Structure. Amorphous polymers. Free volume theory and glass transition, Gordon-Taylor equation for copolymers. Dependence of Tg on the chemical structure, elastomers Characterization of Polymers: thermal analysis Thermogravimetry, calorimetry, dilatometry, examples and equipment Mechanical properties: “Yield” of polymers phenomenology, necking, pressure-dependent yield criteria. Dependence on strain rate and temperature Solubility of polymers solubility criteria for polymeric materials, solubility parameter, Flory Huggings theory. Processing. Production processes of polymeric materials, Extrusion and co-extrusion basic concepts and operation. Fiber spinning and Filming: equipment and process modeling examples. Injection molding: principles of operation and main industrial problems. |
| Obiettivi Agenda 2030 per lo sviluppo sostenibile | 9 |