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Electrical Conductivity of Aluminum Alloy Foams |
| FENG Yi;ZHENG Hai-Wu;ZHU Zhen-Gang;ZU Fang-Qiu |
| Laboratory of Internal Friction and Defects in Solid,
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031
Department of Materials Science and Engineering, Hefei University of Technology, Hefei 230009 |
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| Cite this article: |
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FENG Yi, ZHENG Hai-Wu, ZHU Zhen-Gang et al 2002 Chin. Phys. Lett. 19 1501-1504 |
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Abstract Closed-cell aluminum alloy foams were produced using the powder metallurgical technique. The effect of porosity and cell diameter on the electrical conductivity of foams was investigated and the results were compared with a number of models. It was found that the percolation theory can be successfully applied to describe the dependence of the electrical conductivity of aluminum alloy foams on the relative density. The cell diameter has a negligible effect on the electrical conductivity of foams.
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| Keywords:
72.80.-r
81.05.Rm
81.20.Ev
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Published: 01 October 2002
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| PACS: |
72.80.-r
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(Conductivity of specific materials)
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81.05.Rm
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(Porous materials; granular materials)
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81.20.Ev
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(Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation)
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