Abstract
The structural characterization of chemical vapor deposition (CVD) nickel metal foam is presented in this study. Scanning electron microscope and post image processing were utilized to analyze the surface of the nickel metal foams. Measured data on foam unit cell, ligament thickness, projected pore diameter, and averaged porosity were obtained. The unit cell and projected pore diameters of CVD nickel metal foam possess Gaussian-like distribution. Characteristics of pore structure and its effect on permeability in the Darcian flow regime were analyzed. Results indicate that the permeability and the viscous conductivity of the CVD processed metal foam are highly affected by the porosity and ligament thickness.
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