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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......
Foam structure to improve microwave absorption properties of silicon carbide/carbon materialWanchong Li1,2,Chusen Li1,Lihai Lin1,2,Yan Wang3,Jinsong Zhang1,21. Institute of Metal Research,Chinese... structure properties of the silicon carbide/carbon(SiC/C) foam material on microwave absorption is explored using experiment and simulation.We find that the foam structure of SiC/C foam material......
been paid to the research of LFC process of magnesium alloy in recent years[3, 6-11]. During the LFC mold filling processing, the endothermic degradation of the foam pattern from the moving metal-foam interface produces a chilling effect on the liquid metal. As a result, it influences the temperature field after mold filling and solidification modes of castings. Currently, the heat transfer......
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Microstructure and mechanical properties of Mg-Gd-Y-Zr alloy cast by metal mould and lost foam casting LI Ji-lin, CHEN Rong-shi, KE Wei State Key Laboratory for Corrosion and Protection... of Mg-10.1Gd-3.74Y-0.25Zr (mass fraction, %) alloy (GW104 alloy) cast by metal mould casting (MMC) and lost foam casting (LFC) were evaluated, respectively. It is revealed that different forming modes do......
on a balance and measuring their dimensions by a digital caliper. Relative density could be calculated through the ratio of Al-Si closed-cell aluminum foam density to dense metal density. The cell... and micropores exist in the material (Fig.8), which cause fracture. In order to study the fracture behavior of Al-Si closed-cell aluminum foam in detail, Griffith crackle theory is introduced[15] as well......
is a low-cost technique for manufacturing complicated and near-net-shape castings. In the LFC process molten metal is poured into a foam pattern that has been coated with a refractory material... an EPS foam plank using a hot wire cutter and had a nominal density of 0.020g/cm3. The molten metal displaced the Styrofoam pattern with precise dimensional accuracy. Gases produced due......
, higher melting point porous metallic materials have found an increasing range of applications in many fields. For example, high porosity open-cell Fe-based metal foam can be used as heat exchangers[5], stainless steel foam with 3D open-cell network structure and excellent anti-corrosion property can be used as catalyst carriers in purifying automotive exhaust gases[6], high melting point metal......
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Trans. Nonferrous Met. Soc. China 20(2010) s768-s773 Microstructural evolution of Mg9AlZnY alloy with vibration in lost foam casting during semi-solid isothermal heat treatment ZHAO Zhong(赵 忠), FAN Zi-tian(樊自田), JIANG Wen-ming(蒋文明), DONG Xuan-pu(董选普) State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan......