Thermal and Mechanical Properties of Materials

The mechanical and thermal properties of materials are central to many applications in the field of energy materials. Following an introduction to these various fields of application, this course unit aims to define the different concepts necessary for understanding both the mechanical and thermal properties of materials, focusing exclusively on “bulk” materials.

Hourly volumes*:

            CM: 11: 00 a.m.

            TD: 9: 00 a.m.

The goal is to provide a solid foundation of skills for:

1) an understanding of the various phenomena that govern mechanical and thermal properties

2) knowledge of the different classes of materials

3) Determination of the elastic constants

4) Determination of thermal conductivity

Differential calculus. Matrix algebra. Knowledge of crystallography.

Classical Thermodynamics

Terminal Control (1)

1) Thermal properties (5.5 CM - 4.5 TD)

-Microscopic-macroscopic connection; temperature of electrons and phonons; heat capacity (application: thermal energy storage)

-Thermal conductivity; the law of heat diffusion (application: building insulation)

-Thermal expansion; microscopic aspects and bond anharmonicity; atypical effects (negative expansion, massive expansion, etc.) (technological applications)

-Melting and heat resistance (thermal shock)

-Diffusivity in Materials

-thermoelasticity

2) Mechanical Properties (5.5 CM - 4.5 TD)

- Introduction/Definitions: What are mechanical properties?
- Stress-strain relationships:

Stresses: normal, shear
Strains: tensile, shear, expansion
Stress-strain curve: elastic region (Hooke), plastic region, necking
Definition of different types of materials
- Elastic region:
Definition of different elastic moduli (bulk, shear, Young's, Poisson)
Introduction to the elastic constants Cij
Elastic energy density
Expression of the elastic moduli in terms of Cij
Application to cubic, tetragonal, and orthorhombic crystals

Administrative contact(s):

Master's in Chemistry Office

https://master-chimie.edu.umontpellier.fr/