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material. Methylcellulose and paraffin are used as porogen. The influence of porogen type and copper powder morphology on the property of copper porous materials is investigated as well. The results show... and controllable, so it is more conducive to the development of high-performance porous metal material [12–13]. In this study, copper porous materials have been manufactured by the method of adding......
acoustic absorption performance. Key words: porous titanium fiber material; acoustic absorption; heat transfer; pool boiling 1 Introduction Nowadays, noise is one of the three major environmental pollution... management. The main solution is to use porous material with homogeneously distributed internal fine through-open pores to absorb the noise [5-8]. Porous metal materials possess many new excellent features......
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excellent bath stability. Adding ultrasonic on the process can elevate the deposition rate of copper by 20%-30%. The foam metal material with a porosity of 92.2% and a three-dimensional network structure, was fabricated by electro-deposition after the electroless copper plating. Key words: electroless copper plating; microcellular; polyurethane foam; deposition rate; foam metal material......
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is investigated in two different geometries and the Re=10, 25, 50, 75, 100 and volume fraction 0, 0.2%, 0.5%, 2% and 5% that related to copper nanoparticles, and porous medium porosity of 0.5 and 0.9..... Their results show that Brownian term reduces nanofluid velocity and makes smoother streamlines, and increasing the thermal conductivity leads to cooling of porous material and achieving more Nusselt......
J. Cent. South Univ. Technol. (2011) 18: 6-15 DOI: 10.1007/s11771-011-0651-4 Morphology and growth of porous anodic oxide films on Ti-10V-2Fe-3Al in neutral tartrate solution YI Jun-lan(易俊兰... Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Porous anodic oxide films were fabricated galvanostatically on titanium alloy Ti-10V-2Fe-3Al in ammonium tartrate solution with different......
in a porous medium. They used the copper oxide as nanoparticles and considered the effects of the porosity. They showed that when the nanoparticles are added to the base fluid, the heat transfer... on the top of electronic modules to cool them [15–17]. This arrangement saves material usage against a porous layer, which completely covers the surface. The optimal arrangement of porous ribs has......
, the as-prepared N-C-800 catalyst shows a much better performance, suggesting that the N-doping and construction of 3D porous morphology can significantly boost the ORR performance of carbon material. The Eonset... ARTICLE J. Cent. South Univ. (2019) 26: 1458-1468 DOI: https://doi.org/10.1007/s11771-019-4102-y Red-blood-cell-like nitrogen-doped porous carbon as an efficient metal-free catalyst for oxygen......
pores. The overall porosity and porosity of open pore of the sintered porous magnesium increase with the increase of added spacer material, while decrease with the increase of the molding stress. The mechanical properties of sintered porous magnesium increase with decreasing addition of spacer material and increasing molding stress. Key words: porous magnesium; powder metallurgy; spacer material......
