• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • View Item
  • Home
  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Assessment of geometrical and transport properties of a fibrous C/C composite preform as digitized by X-ray CMT. Part II: heat and gas transport properties

Article dans une revue avec comité de lecture
Author
VIGNOLES, Gérard
19229 Laboratoire des Composites Thermostructuraux [LCTS]
COINDREAU, Olivia
19229 Laboratoire des Composites Thermostructuraux [LCTS]
ccAHMADI-SENICHAULT, Azita
BERNARD, Dominique
481 Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

URI
http://hdl.handle.net/10985/9747
DOI
10.1557/JMR.2007.0216
Date
2007
Journal
Journal of Materials Research

Abstract

Raw and partially infiltrated carbon–carbon composite preforms have been scanned by high-resolution synchrotron radiation x-ray computerized microtomography. Three-dimensional high-quality images of the pore space have been produced at two distinct resolutions and have been used for the computation of transport properties: heat conductivity, binary gas diffusivities, Knudsen diffusivities, and viscous flow permeabilities. The computation procedures are based on a double change-of-scale strategy suited to the bimodal nature of pore space and on the local determination of transport anisotropy. Good agreement has been found between all calculated quantities and experimental data. I.

Files in this item

Name:
TREFLE_JMR_2007__Ahmadi.pdf
Size:
757.4Kb
Format:
PDF
View/Open

Collections

  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Related items

Showing items related by title, author, creator and subject.

  • Thermographic and tomographic methods for tridimensional characterization of thermal transfer in silica/phenolic composites 
    Article dans une revue avec comité de lecture
    BESSON, Gerard; ccAHMADI-SENICHAULT, Azita; CATY, Olivier; AYVAZYAN, Viguen; GREGORI, Maria Luisa; COSTA, S.F.; VIGNOLES, Gérard (Elsevier, 2016)
    Silica/phenolic composite materials are often used in thermal protection systems (TPS) for atmospheric re-entry. The present work aims to compare two different approaches to assess heat transfer properties of these materials: ...
  • Essais d’impact et propriétés thermiques résiduelles sur composites silice/phénolique 
    Communication avec acte
    BRESSON, Grégory; CATY, Olivier; MERZEAU, Jonathan; ccDAU, Frédéric; ccAHMADI-SENICHAULT, Azita; VIGNOLES, Gérard (Association Française de Mécanique, 2013)
    Silica/phenolic composites are used in atmospheric re-entry heat shield parts in spatial and strategic domains. For this application, the material is submitted to thermo-mechanical stresses that lead to delaminations. To ...
  • Thermographic and tomographic methods for three-dimensional characterization of thermal diffusion in silica/phenolic composites 
    Conférence invitée
    ccAHMADI-SENICHAULT, Azita; VIGNOLES, Gérard; BRESSON, Grégory; CATY, Olivier; AYVAZYAN, Viguen; GREGORI, Maria Luisa; COSTA, S.F. (2014)
    Aeronautical and space vehicles include many parts made of composite materials. The thermal design of these materials is critical versus their application. Indeed, the presence of very high thermal gradients during use may ...
  • Measurement of the thermal diffusivity of a silica fiber bundle using a laser and an IR camera 
    Communication avec acte
    VIGNOLES, Gérard; BRESSON, Grégory; LORRETTE, Christophe; ccAHMADI-SENICHAULT, Azita (Journal of Physics Conference Series, 2012)
    We propose a lightweight method for the determination of heat diffusivity of silica fiber bundles based on the use of a laser and an IR camera. The fiber bundle is maintained in traction in a holder; exposition is made as ...
  • Effective heat conductivities of partly infiltrated fibrous media 
    Communication sans acte
    ccAHMADI-SENICHAULT, Azita; VIGNOLES, Gérard; COINDREAU, Olivia; ROS, William; GOULARD DIAS, Fagner (2009)
    The present work has been motivated by the context of feeding a global model of thermal-gradient chemical vapour infiltration process for the fabrication of fibre-reinforced ceramic matrix composites: the heat conductivity ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales