Extended Effective-Mean-Field Analysis for Electrical Conductivity of Lotus-Type Porous Nickel

Masakazu Tane; Soong Keun Hyun; Hideo Nakajima

doi:10.4028/www.scientific.net/MSF.512.331

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HomeMaterials Science ForumMaterials Science Forum Vol. 512Extended Effective-Mean-Field Analysis for...

Extended Effective-Mean-Field Analysis for Electrical Conductivity of Lotus-Type Porous Nickel

Abstract:

We studied the effective electrical conductivity of lotus-type porous nickel with cylindrical elongated pores by applying the extended effective-mean-field (extended EMF) theory that is based on Hatta-Taya’s theory and Bruggeman’s effective-medium approximation. We modeled lotus-type porous nickel as the composite materials with ellipsoidal void inclusion, and examined the effect of shape and orientation of the pores and applied-electric-field direction on the effective electrical conductivity. The extended EMF theory revealed that well-known Archie’s power law is quite useful for expressing the porosity dependence of the electrical conductivity of lotus-type porous metals even though the deviation of porous morphology exists.

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Periodical:

Materials Science Forum (Volume 512)

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331-336

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.512.331

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Online since:

April 2006

Authors:

Masakazu Tane, Soong Keun Hyun, Hideo Nakajima

Keywords:

Effective-Mean-Field-Theory, Electrical Conductivity, Porous Metals

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References

[1] Y. Suematsu, S.K. Hyun and H. Nakajima: J. Japan Institute Metals Vol. 68, (2004) pp.257-261.

Google Scholar

[2] H. Nakajima, S.K. Hyun, K. Ohashi, K. Ota and K. Murakami: Colloids Surfaces A Vol. 179 (2001), pp.209-214.

Google Scholar

[3] H. Hatta and M. Taya: J. Appl. Phys. Vol. 58 (1985), pp.2478-2486.

Google Scholar

[4] H. Hatta and M. Taya: J. Eng. Mater. Vol. 24 (1986), pp.1159-1172.

Google Scholar

[5] J.D. Eshelby: Proc. Roy. Soc. London Vol. A241 (1957), pp.376-396.

Google Scholar

[6] T. Mori and K. Tanaka: Acta Metall. Vol. 21 (1973), pp.571-574.

Google Scholar

[7] M. Tane, S.K. Hyun and H. Nakajima: Scripta Mater. [submitted].

Google Scholar

[8] D.A.G. Bruggeman: Ann. Phys. (Leipzig) Vol. 24 (1935), pp.636-664.

Google Scholar

[9] M. Tane and T. Ichitsubo: Appl. Phys. Lett. Vol. 85 (2004), pp.197-199.

Google Scholar

[10] M. Tane, T. Ichitsubo, H. Nakajima, S.K. Hyun and M. Hirao: Acta Mater. Vol. 52 (2004), pp.5195-5201.

DOI: 10.1016/j.actamat.2004.07.030

Google Scholar

[11] M. Tane, T. Ichitsubo, M. Hirao, T. Ikeda and H. Nakajima: J. Appl. Phys. Vol. 96 (2004), pp.3696-3701.

Google Scholar

[12] M. Tane, S.K. Hyun and H. Nakajima: J. Appl. Phys. Vol. 97 (2005), 103701.

Google Scholar

[13] G.E. Archie: Trans. AIME Vol. 146 (1942), pp.54-62.

Google Scholar

[14] Y. Ohnishi, S.K. Hyun and H. Nakajima: Proceedings of the International Conference on New Frontiers of Process Science and Engineering in Advanced Materials, Kyoto, Japan, 24-26 November 2004 (High Temperature Society of Japan, Osaka, 2004), pp.116-119.

Google Scholar