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Structural Characterization of Micron-scaled Reticulated Copper Foams

Published online by Cambridge University Press:  21 March 2011

Stephanie J Lin  and
Jason H. Nadler
Stephanie J Lin
Affiliation:
School of Material Science and Engineering, Georgia Tech ,771 Ferst Drive, Atlanta, GA 30332
Jason H. Nadler
Affiliation:
Georgia Tech Research Institute, 925 Dalney St, Atlanta GA 30332
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Abstract

The development of a multifunctional, micron-scaled, reticulated copper foam that reliably exhibits high intrinsic thermal conductivity, efficient capillary fluid and evaporative transport over a wide area presents a unique challenge. In this work, the relationship of critical foam processing variables such as sintering temperature and template size on the pore size distribution and pore neck/body ratio is investigated using image analysis. The resulting fluid permeability values of these foams are estimated by using the Kozeny Carman equation and the porosity, surface area per unit area and tortuosity obtained through image analysis. Estimating the fluid permeability of these foams is useful for predicting the mass and heat transfer within the porous network, and provides a metric for optimizing the foam’s structural characteristics for a particular application.

Keywords

cellular (material type)foamscanning electron microscopy (SEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1304: Symposium Z – Hierarchical Materials and Composites—Combining Length Scales from Nano to Macro , 2011 , mrsf10-1304-z09-11
Copyright
Copyright © Materials Research Society 2011

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References

[1] Laschet, G., Kashko, T., Angel, S., Scheele, J., Nickel, R., Bleck, W., and Bobzin, K., “Microstructure based model for permeability predictions of open-cell metallic foams via homogenization,” Mat Sci Eng: A, vol. 472, (2008), 214–226.CrossRefGoogle Scholar
[2] Habisreuther, P., Djordjevic, N., and Zarzalis, N., “Statistical distribution of residence time and tortuosity of flow through open-cell foams,” Chem Eng Sci, (2009), 1–12.Google Scholar
[3] Petrasch, J., Meier, F., Friess, H., and Steinfeld, A., “Tomography based determination of permeability, Dupuit–Forchheimer coefficient, and interfacial heat transfer coefficient in reticulate porous ceramics,” Inter J Heat Fluid Fl, vol. 29, (2008), 315–326.CrossRefGoogle Scholar
[4] Berryman, J.G. and Blair, S.C., “Kozeny-Carman relations and image processing methods for estimating Darcy’s constant,” vol. 94550, (1987), 2221–2229.Google Scholar
[5] Torquato, S. and Pham, D., “Optimal bounds on the trapping constant and permeability of porous media,” Phys Rev Lett, (2004), 255505.Google Scholar
[6] Russ, J.C., The Image Processing Handbook, Fourth Edition, CRC Press, 2002.CrossRefGoogle Scholar
[7] Smith, C. and Guttman, L., “Measurement of internal boundaries in three-dimensional structures by random sectioning,” Trans AIME, vol. 1,(1954), 81–92.Google Scholar
[8] Arya, L.M., Leij, F.J., Shouse, P.J., and Van Genuchten, M.T., “Relationship between the hydraulic conductivity function and the particle-size distribution,” Soil Sci J, vol. 63, 1063–1070.CrossRefGoogle Scholar
[9] Armatas, G.S., “Determination of the effects of the pore size distribution and pore connectivity distribution on the pore tortuosity and diffusive transport in model porous networks,” Chem Eng Sci, vol. 61, (2006), 4662–4675.CrossRefGoogle Scholar
[10] Liang, Z., “Permeability and electrical conductivity of porous media from 3D stochastic replicas of the microstructure,” Chem Eng Sci, vol. 55, (2000), 5247–5262.Google Scholar
[11] Phanikumar, M. and Mahajan, R., “Non-Darcy natural convection in high porosity metal foams,” Inter J Heat Mass Trans (2002), 3781–3793.CrossRefGoogle Scholar
[12] Torquato, S. and Avellaneda, M., “Diffusion and reaction in heterogeneous media: Pore size distribution, relaxation times, and mean survival time,” J Chem Phys, (1991), 6477–6489.Google Scholar
[13] Vogel, H.J., “Morphological determination of pore connectivity as a function of pore size using serial sections,” Eur J Soil Sci, vol. 48, (1997), 365–377.CrossRefGoogle Scholar