Study of the Coefficients of Thermal Expansion of phases embedded in multiphase materials - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Materials Science Forum Année : 2003

Study of the Coefficients of Thermal Expansion of phases embedded in multiphase materials

Résumé

The present paper describes a new approach developed in order to determine the Coefficients of Thermal Expansion (CTE) of phases embedded in two-phase materials. The procedure is based on the coupling of numerical simulations with scale transition models and experiments. A three scales one-site thermo-elastic self-consistent model following the formalism introduced by Kroner and Eshelby (KE) was extended to multiphase materials. Preliminary numerical computations justify to identify the CTE of a given phase embedded in a two-phase material with the CTE of the corresponding pure single-phase. This additional assumption was introduced in KE model. The implementation yields an explicit formulation for the unknown CTE of a phase embedded in a (α+β) two-phases material. The application of this expression to the characterization of β thermal expansion properties implies the measurement or knowledge of several parameters. This approach was checked through the study of an Al-50%vol.-SiC-50%vol. MMC. The CTE of Silicon Carbide were determined as a function of the temperature. Simulated results obtained show a very good agreement with experimental values available in the literature.
Fichier principal
Vignette du fichier
FGFGS.pdf (430.15 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01007345 , version 1 (16-06-2014)

Licence

Paternité

Identifiants

Citer

Sylvain Fréour, David Gloaguen, Manuel François, Ronald Guillen. Study of the Coefficients of Thermal Expansion of phases embedded in multiphase materials. Materials Science Forum, 2003, 426-432, pp.2083-2088. ⟨10.4028/www.scientific.net/MSF.426-432.2083⟩. ⟨hal-01007345⟩
91 Consultations
244 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More