Three-dimensional reconstruction and microstructure modeling of porosity-graded cathode using focused ion beam and homogenization techniques

H. Amani Hamedani, M. Baniassadi, A. Sheidaei, F. Pourboghrat, Y. Rémond, M. Khaleel, H. Garmestani

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10 Citations (Scopus)

Abstract

In this study, microstructure of a porosity-graded lanthanum strontium manganite (LSM) cathode of solid oxide fuel cells (SOFCs) has been characterized using focused ion beam (FIB) and scanning electron microscopy (SEM) combined with image processing. Two-point correlation functions of the two-dimensional (2D) images taken along the direction of porosity gradient are used to reconstruct a three-dimensional (3D) microstructure. The effective elastic modulus of the two-phase porosity-graded cathode is predicted using strong contrast (SC) and composite inclusion (CI) homogenization techniques. The effectiveness of the two methods in predicting the effective elastic properties of the porosity-graded LSM cathode is investigated in comparison with the results obtained from the finite element model (FEM).

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalFuel Cells
Volume14
Issue number1
DOIs
Publication statusPublished - 1 Feb 2014
Externally publishedYes

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Keywords

  • Cathode
  • Electrode
  • Mathematical Modeling
  • Oxide Thin Films
  • Solid Oxide Fuel Cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

Cite this

Amani Hamedani, H., Baniassadi, M., Sheidaei, A., Pourboghrat, F., Rémond, Y., Khaleel, M., & Garmestani, H. (2014). Three-dimensional reconstruction and microstructure modeling of porosity-graded cathode using focused ion beam and homogenization techniques. Fuel Cells, 14(1), 91-95. https://doi.org/10.1002/fuce.201300170