Estimation of the electrical conductivity of TiB2/Al composites by using image analysis

The goal of the present work was developing the software for calculating the electrical conductivity of aluminum-based particle-dispersed composites by using the actual microstructure images and by performing conduction simulations. However, the electrical conductivity calculated using the microstru...

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Autores principales:	Kenjiro SUGIO, Nariaki KAWANO, Takaaki HIROSE, Yong-Bum CHOI, Gen SASAKI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2016
Materias:	composite materials electrical conductivity image analysis particle dispersibility finite volume method Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/44a76433c1e34550bf894c9c4785f451
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spelling	oai:doaj.org-article:44a76433c1e34550bf894c9c4785f4512021-11-26T06:40:17ZEstimation of the electrical conductivity of TiB2/Al composites by using image analysis2187-974510.1299/mej.15-00577https://doaj.org/article/44a76433c1e34550bf894c9c4785f4512016-02-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/2/3_15-00577/_pdf/-char/enhttps://doaj.org/toc/2187-9745The goal of the present work was developing the software for calculating the electrical conductivity of aluminum-based particle-dispersed composites by using the actual microstructure images and by performing conduction simulations. However, the electrical conductivity calculated using the microstructure image was supposed to be not equivalent to the electrical conductivity measured by using any of the existing experimental methods, because the microstructure image is a two-dimensional source of information, although the experimental conductivity is obtained from three-dimensional microstructures. Therefore, the statistical relationship between three- and two-dimensional electrical conductivities was investigated by performing the conduction simulations. The electrical potential distribution in the steady state was calculated by using the finite volume method, and the electrical conductivity of the composites was evaluated. The average electrical conductivity of two-dimensional cross-sections was lower than that of a three-dimensional cell, and the difference increased with increasing volume fraction. When the difference between the matrix and reinforcement electrical conductivities was small, the difference between the two- and three-dimensional electrical conductivities was small as well. The difference between the two- and three-dimensional electrical conductivities was constant for all volume fractions even when dispersibility changed. A correction for converting the two-dimensional electrical conductivity to the three-dimensional electrical conductivity was suggested. The electrical conductivity of Al/TiB2 was evaluated from the actual microstructure image by performing the conduction simulation.Kenjiro SUGIONariaki KAWANOTakaaki HIROSEYong-Bum CHOIGen SASAKIThe Japan Society of Mechanical Engineersarticlecomposite materialselectrical conductivityimage analysisparticle dispersibilityfinite volume methodMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 2, Pp 15-00577-15-00577 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite materials electrical conductivity image analysis particle dispersibility finite volume method Mechanical engineering and machinery TJ1-1570
spellingShingle	composite materials electrical conductivity image analysis particle dispersibility finite volume method Mechanical engineering and machinery TJ1-1570 Kenjiro SUGIO Nariaki KAWANO Takaaki HIROSE Yong-Bum CHOI Gen SASAKI Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
description	The goal of the present work was developing the software for calculating the electrical conductivity of aluminum-based particle-dispersed composites by using the actual microstructure images and by performing conduction simulations. However, the electrical conductivity calculated using the microstructure image was supposed to be not equivalent to the electrical conductivity measured by using any of the existing experimental methods, because the microstructure image is a two-dimensional source of information, although the experimental conductivity is obtained from three-dimensional microstructures. Therefore, the statistical relationship between three- and two-dimensional electrical conductivities was investigated by performing the conduction simulations. The electrical potential distribution in the steady state was calculated by using the finite volume method, and the electrical conductivity of the composites was evaluated. The average electrical conductivity of two-dimensional cross-sections was lower than that of a three-dimensional cell, and the difference increased with increasing volume fraction. When the difference between the matrix and reinforcement electrical conductivities was small, the difference between the two- and three-dimensional electrical conductivities was small as well. The difference between the two- and three-dimensional electrical conductivities was constant for all volume fractions even when dispersibility changed. A correction for converting the two-dimensional electrical conductivity to the three-dimensional electrical conductivity was suggested. The electrical conductivity of Al/TiB2 was evaluated from the actual microstructure image by performing the conduction simulation.
format	article
author	Kenjiro SUGIO Nariaki KAWANO Takaaki HIROSE Yong-Bum CHOI Gen SASAKI
author_facet	Kenjiro SUGIO Nariaki KAWANO Takaaki HIROSE Yong-Bum CHOI Gen SASAKI
author_sort	Kenjiro SUGIO
title	Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
title_short	Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
title_full	Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
title_fullStr	Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
title_full_unstemmed	Estimation of the electrical conductivity of TiB2/Al composites by using image analysis
title_sort	estimation of the electrical conductivity of tib2/al composites by using image analysis
publisher	The Japan Society of Mechanical Engineers
publishDate	2016
url	https://doaj.org/article/44a76433c1e34550bf894c9c4785f451
work_keys_str_mv	AT kenjirosugio estimationoftheelectricalconductivityoftib2alcompositesbyusingimageanalysis AT nariakikawano estimationoftheelectricalconductivityoftib2alcompositesbyusingimageanalysis AT takaakihirose estimationoftheelectricalconductivityoftib2alcompositesbyusingimageanalysis AT yongbumchoi estimationoftheelectricalconductivityoftib2alcompositesbyusingimageanalysis AT gensasaki estimationoftheelectricalconductivityoftib2alcompositesbyusingimageanalysis
_version_	1718409715797458944

Estimation of the electrical conductivity of TiB2/Al composites by using image analysis

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