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

doi:10.1002/fuce.201300170

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

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

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 language	English
Pages (from-to)	91-95
Number of pages	5
Journal	Fuel Cells
Volume	14
Issue number	1
DOIs	https://doi.org/10.1002/fuce.201300170
State	Published - Feb 2014
Externally published	Yes

Keywords

Cathode
Electrode
Mathematical Modeling
Oxide Thin Films
Solid Oxide Fuel Cell

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10.1002/fuce.201300170

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

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).",

keywords = "Cathode, Electrode, Mathematical Modeling, Oxide Thin Films, Solid Oxide Fuel Cell",

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year = "2014",

month = feb,

doi = "10.1002/fuce.201300170",

language = "English",

volume = "14",

pages = "91--95",

journal = "Fuel Cells",

issn = "1615-6846",

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T1 - Three-dimensional reconstruction and microstructure modeling of porosity-graded cathode using focused ion beam and homogenization techniques

AU - Amani Hamedani, H.

AU - Baniassadi, M.

AU - Sheidaei, A.

AU - Pourboghrat, F.

AU - Rémond, Y.

AU - Khaleel, M.

AU - Garmestani, H.

PY - 2014/2

Y1 - 2014/2

N2 - 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).

AB - 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).

KW - Cathode

KW - Electrode

KW - Mathematical Modeling

KW - Oxide Thin Films

KW - Solid Oxide Fuel Cell

UR - https://www.scopus.com/pages/publications/84894177359

U2 - 10.1002/fuce.201300170

DO - 10.1002/fuce.201300170

M3 - Article

AN - SCOPUS:84894177359

SN - 1615-6846

VL - 14

SP - 91

EP - 95

JO - Fuel Cells

JF - Fuel Cells

IS - 1

ER -

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

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Keywords

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