Quantification of Ni-YSZ Anode Microstructure Based on Dual Beam FIB-SEM Technique

被引：14

作者：

Iwai, H. ^{[1
]}

Shikazono, N. ^{[2
]}

Matsui, T. ^{[3
]}

Teshima, H. ^{[2
]}

Kishimoto, M. ^{[1
]}

Kishida, R. ^{[3
]}

Hayashi, D. ^{[1
]}

Matsuzaki, K. ^{[2
]}

Kanno, D.

Saito, M. ^{[1
]}

Muroyama, H. ^{[3
]}

Eguchi, K.

Kasagi, N. ^{[2
]}

Yoshida, H. ^{[1
]}

机构：

[1] Kyoto Univ, Dept Aeronaut & Astronaut, Sakyo Ku, Kyoto 6068501, Japan

[2] Univ Tokyo, Dept Mech Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Chem Kyoto Univ, Dept Energy Hydrocarbon, Nishikyo Ku, Kyoto 6158510, Japan

来源：

SOLID OXIDE FUEL CELLS 11 (SOFC-XI) | 2009年 / 25卷 / 02期

关键词：

RAY COMPUTED-TOMOGRAPHY; CERMET ANODE; RECONSTRUCTION; TORTUOSITY; BEHAVIOR; FLOW;

D O I：

10.1149/1.3205723

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Three-dimensional microstructure of a conventional Ni-8YSZ anode is quantified by means of dual beam FIB-SEM system equipped with EDX. The microstructure of the anode is virtually reconstructed in a computational field using a series of two-dimensional SEM images acquired. Three-phase-boundary (TPB) density and tortuosity factors are carefully evaluated by applying two different evaluation methods to each parameter. TPB density is evaluated by volume expansion method and centroid method, while tortuosity factor is evaluated by Lattice Boltzmann Method calculation and by random walk approach. The estimations of each parameter by two methods match well each other showing the reliability of analyzing methods proposed in this study.

引用

页码：1819 / 1828

页数：10

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