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# Core Curriculum: Materials (S5) - 3PMKTCM6

• #### Number of hours

• Lectures : 14.0
• Tutorials : 14.0
• Laboratory works : ?
• Projects : ?
• Internship : ?
ECTS : 2.5

### Goals

Know the various material classes.
Get valuable knowledge in crystallography and X-Ray diffraction.
Understand the material properties as function of their class, structure and defects.
Use the technics of material selection.

Contact Thierry DUFFAR, Alexis DESCHAMPS

Content

Introduction, organisation, personal work

Chapter 1: Chemical bonds
Ionic bonding, Covalent bonding, Metallic bonding. Weak bonding (Van der Waals, dipolar and hydrogen).
Main material classes: ceramics, metals, polymers.

Chapter 2 : Bonds and material properties
Elastic properties(tensile test, Young modulus, Poisson coeff.)
Thermal properties(dilatation coeff., melting T°, conduction)
Electrical properties(ionic and e- conduction)
Exercise: NaCl cohesion, compressibility
Exercise: Conductivity

Chapter 3 : Crystallography
Lattice (cell, Bravais lattices).
Crystallographic planes and directions(atomic density), reticular distances.
Patterns, crystal=lattice+atomic pattern.
Compact assemblies and main structural types. Metal Structures: fcc, ch, cc. Interstitial Sites. Covalent Structures (diamond),ionic structures.
Reciprocal lattice, definition, properties. Reciprocal lattice for various Crystal systems. Inter-reticular distances. Relation between direct and reciprocal cell volumes.
X-ray Diffraction: Bragg law, diffraction conditions (Bragg relation, Ewald sphere).
Exercise: Sm-Co et C (diamond-graphite)
Exercise: Intersticial sites
Exercice: Reciprocal lattice
Exercice: diffraction diagram

Chapitre 4 : Crystal defects
Binary phase diagram as a tool.
Point defects, solid solutions, diffusion.
Linear defects: dislocations, plasticity, hardening.
2D defects: grains, précipitates, equilibrium phases.
Material structures.
Exercise: phase diagrams
Exercise: Si substrate and epitaxy
Exercise: Al alloys and power lines.

Personal work: use of CES software for material selection.

Prerequisites

General knowledge in physics and chemistry

Tests

Multiple choice Questions
Written exam on exercises et problems (2h)
Delivery of personnal work(1h).

4 QCMs de 5 questions : à la fin de chaque chapitre : ± 0,1 pt/question → 2 points
Un exercice sur le logiciel CES, 1 heure → 4 points
Un devoir surveillé (exercices, problème…), 2 heures → 14 points

Curriculum->F1Y-PMP->Semester 5
Curriculum->F1Y-PET->Semester 5
Curriculum->1Y Core Curriculum->Semester 5
Curriculum->Common courses->Semester 5