Determination of physical properties and thermal conductivity of graphite foam with image analysis

A. Mohammadimehr, Ismail Solmus, B Ozyer, D A S Rees

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Abstract

Since pore network structures of porous materials have irregular shapes and may vary in size, the accurate characterization and virtual 3D reconstruction of these materials are of great importance for a deeper understanding of the structure and subsequent calculations. In this study, the scanning electron microscope (SEM) and X-ray microcomputed tomography (µCT) images of a graphite foam sample are used for image analysis method (IAM) and virtual 3D reconstruction as non-destructive scientific tools with high accuracy. The morphological characterization and determination of effective pore diameter, porosity, specific surface area (SSA), and effective thermal conductivity (ETC) of POCO graphite foam are investigated. By examining the results obtained from the method of image analysis, it is found that there is a good agreement among the IAM results.
Original languageEnglish
Article number45
Number of pages21
JournalInternational Journal of Thermophysics
Volume41
Issue number4
Early online date24 Feb 2020
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • 3D reconstruction
  • Effective thermal conductivity
  • Graphite foam
  • Image analysis
  • Porosity
  • Specific surface area

ASJC Scopus subject areas

  • Condensed Matter Physics

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