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A highly porous titanium foam with open cells was made by the process of impregnating polymer foam in slurry and then sintering, which displayed a three-dimensional reticular structure with interconnected pores. For this reticular titanium foam, the electromagnetic shielding performance was investigated in the frequency range of 0.3–3000MHz (covering that of radio waves). The experimental results...
A novel sort of cellular titanium foam, whose total porosity was achieved as high as 86%–90% and main pores were spherically millimeter-scaled, was recently prepared successfully by an improved foaming method of melting the metallic powder. This titanium foam showed a good performance of sound absorption, and its sound absorption coefficient could be more than 0.6 in the sound-wave frequency range...
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