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CODE 28083
ACADEMIC YEAR 2021/2022
CREDITS
SCIENTIFIC DISCIPLINARY SECTOR CHIM/03
LANGUAGE Italian
TEACHING LOCATION
  • GENOVA
SEMESTER 2° Semester
PREREQUISITES
Propedeuticità in ingresso
Per sostenere l'esame di questo insegnamento è necessario aver sostenuto i seguenti esami:
  • Chemistry and Chemical Technologies 8757 (coorte 2019/2020)
  • MATHEMATICAL INSTITUTIONS 72564 2019
  • Chemistry and Chemical Technologies 8757 (coorte 2021/2022)
  • MATHEMATICAL INSTITUTIONS 72564 2021
  • Chemistry and Chemical Technologies 8757 (coorte 2020/2021)
  • MATHEMATICAL INSTITUTIONS 72564 2020
TEACHING MATERIALS AULAWEB

AIMS AND CONTENT

LEARNING OUTCOMES

Main objective of this course is the description of properties and characteristics of inorganic materials on the basis of relations between structure, microstructure and chemical and physical properties. Moreover correlation between contitutional properties and behaviour in service under different conditions are described.

SYLLABUS/CONTENT

General characteristics of 2-component phase diagrams. Three-component phase diagrams. Gibbs triangle. Isothermal and isoplethal sections. Liquidus projections, primary solidification areas, solidification process. Isomorphous ternary systems. Two- and three-phase fields. Invariant ternary equilibria. Reaction scheme (Scheil diagrams). Examples of real ternary intermetallic and ceramic systems. Higher order systems.

Ceramic materials. Classification. Crystal structures: CsCl, NaCl, wurtzite, sfalerite, spinel, rutile, alumina, fluorite, perowskite, ecc. Silicates and their structures: ortosilicates, sorosilicates, ciclosilicates, fillosilicates, … SiO2 strucrures. Feldspar e zeolites. Kaolinite, Halloysite, Kyanite, Montmorillonite, … . Phase diagrams of ceramic systems: SiO2, SiO2-Al2O3, Fe2O3-SiO2, MgO-SiO2, CaO-MgO, CaO-SiO2, MgO-SiO2-Al2O3, K2O-SiO2-Al2O3, … Classical ceramics: earthenware, stoneware, porcellain, ... Advanced eramics: carbides, nitrides, borides, oxides, ....

Phase transitions: nucleation and growth, spinodal decomposition. Nucleation rate, growth rate, Avrami equation. Homogeneous and heterogeneous nucleation. Growth mechanisms: diffused and planar interface, nucleation controlled and diffusion controlled growth.  T-T-T diagrams. Structure of glasses. Network formers e network modifiers. Phase diagrams for vitreous systems. Glass transition temperature. amorfous metals.

Surfaces and interfaces: thermodynamic properties. High temperature solid-liquid interactions. Wetting. Reactive, non-reactive and dissolutive wetting. Measurements of wetting and surface tension. “Case Studies”: Metal-ceramic surface interactions, phase diagrams applied to wetting and brazing processes.

TEACHERS AND EXAM BOARD

Exam Board

GABRIELE CACCIAMANI (President)

SERENA DE NEGRI

PAOLA RIANI (President Substitute)

SIMONA DELSANTE (Substitute)

EXAMS

Exam schedule

Data appello Orario Luogo Degree type Note
31/01/2022 10:00 GENOVA Orale
31/01/2022 10:00 GENOVA Orale
14/02/2022 10:00 GENOVA Orale
14/02/2022 10:00 GENOVA Orale
07/06/2022 10:00 GENOVA Orale
13/06/2022 10:00 GENOVA Orale
22/06/2022 10:00 GENOVA Orale
27/06/2022 10:00 GENOVA Orale
07/07/2022 10:00 GENOVA Orale
07/07/2022 10:00 GENOVA Orale
06/09/2022 10:00 GENOVA Orale
06/09/2022 10:00 GENOVA Orale
22/09/2022 10:00 GENOVA Orale