metal foams
A. Mechanical Behaviours of Metal Foams
... in metal foams can be imagined as sponge. A metal foam is, therefore, characterised microstructurally by its cell topology, relative density, cell size and cell shape ...a metal foam in ...
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Phase change convective heat transfer in high porosity cellular metal foams
... for metal foams, which gave good agreement with test ...in metal foams are three-dimensional, and therefore a 3D model is preferred in order to get improved ...approximate metal foam ...
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A Modified Kelvin Model for Thermal Performance Simulation of High Mechanical Property Open Cell Metal Foams
... as metal fins, metal meshes and metal foam ...open-cell metal foams have been widely investigated because of its high surface area to volume ratio which can greatly increase the energy ...
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Heat transfer enhancement in phase change materials (PCMs) by metal foams and cascaded thermal energy storage
... For metal foams, their high porosity means thermal equilibrium is difficult to achieve; metal materials usually have a thermal conductivity 10 3 times higher than saturation materials such as air and ...
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Flow and Convection in Metal Foams: a Survey and New CFD Results
... the metal foams the most studied devices for heat transfer enhancement in the last ...the metal foams provide a significant alternative to the finned surfaces as tools for increasing the heat ...
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Selected Microstructural and Mechanical Properties of Open-Cell Metal Foams
... Fe-based metal foams All the specimens analysed in this paper were prepared under a pressure of 1 ...Cu-based foams, where the foaming agent is copper ...
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Pore scale numerical investigation of pressure drop behaviour across open cell metal foams
... This study aims to address some points commonly overlooked in previous studies. Direct pore-scale simulations are performed on several commercial open-cell metal foams with different pore sizes. X-ray ...
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Numerical Modelling of Transport in Complex Porous Media: Metal Foams to the Human Lung
... 1. Investigation of effective properties in other porous materials. In this work, all of the effective flow and thermal properties of graphite foam were obtained and the perme- ability of an alveolated duct was ...
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A Systematic Study on the Mechanical and Thermal Properties of Open Cell Metal Foams for Aerospace Applications
... cell metal foam directly in front of the turbine blades (after the combustion chambers) for the purpose of mixing the hot and cold ...earlier, metal foams are considered porous media and exhibit ...
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Eddy current measurement of the electrical conductivity and porosity of metal foams
... ELLULAR metal foams are a relatively new class of material, which are of interest because of the excep- tional ability to adapt their mechanical, thermal, acoustic, electrical, and chemical properties by ...
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Processing and Characterization of Aluminum-Steel Composite Metal Foams
... properties, metal foams are considered to be an appropriate material for impact-energy absorbing components (Figure ...makes metal foams a candidate material for crash-relevant components in ...
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Characterization and Applications of Composite Metal Foams.
... of metal foams for structural components has been relatively limited due to the non-homogeneous cellular structure, which results in their low mechanical properties and premature failure under ...of ...
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Heat transfer enhancement for thermal energy storage using metal foams embedded within phase change materials (PCMs)
... Metal foams have so complicated interior microstructures that it is hard for us to accurately capture the heat transfer phenomena within the foam ...of metal foams, as shown in ...
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Effect of Fe additive on plastic deformation for crush-boxes with closed-cell metal foams, Part I: Al-composite foam compression response
... Composite foams of AlSi7SiC3 and AlSi7SiC3-(Fe) as a closed cell were synthesized through powder metallurgy foaming ...produced foams revealed a non-homogenous cell which is dependent on Fe-rich ...
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Modelling of the behaviour of metal foams under shock compression
... Abstract. A theoretical modelling is proposed to describe the shock response of foam materials. This model is based on micromechanical and energetic arguments, and takes into account the contribution of microscale ...
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Analysis of liquid metal foams through X ray radioscopy and microgravity experiments
... Complex liquid structures such as metallic foams were produced in a furnace that allowed in situ X-ray monitoring of the evolution of the structure and distribution of the liquid in the foam. The experiments were ...
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Simulation of Foaming and Deformation for Composite Aluminum Foams
... the foams were then performed using 25 kN Instron 8502 test machine at a crosshead speed of ...of foams was prepared by metallographic ...porous metal were meshed and simulated elastic-plastic ...
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Chapter 16: The structure of liquid foams
... wet foams, however, remain challenging, mainly due to the problems associated with detection and execution of topological ...wet foams. Future progress in understanding wet foams will benefit from ...
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Jamming and geometry of two-dimensional foams
... as foams, emulsions, granular media and (colloidal) suspensions, and this idea has lead to an upsurge of simulations revealing critical behaviour as a function of the distance to the critical point J, which is ...
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Production of Bio-Based Phenol Formaldehyde Foams
... BPF foams as thermal insulating and fire retardant materials, without KL undergoing any ...BPF foams with high phenol substitution ratios of up to 50 ...BPF foams are formulated using new ...
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