Results 21 to 30 of about 8,521 (254)

Gas Diffusion Layers in Fuel Cells and Electrolysers: A Novel Semi-Empirical Model to Predict Electrical Conductivity of Sintered Metal Fibres

open access: yesEnergies, 2019
This paper introduces novel empirical as well as modified models to predict the electrical conductivity of sintered metal fibres and closed-cell foams.
Reza Omrani, Bahman Shabani
doaj   +1 more source

Al-Foam Compression Tests in Parallel and Serial Concepts

open access: yesApplied Sciences, 2023
Taking into consideration the additional weight of a vehicle, today’s requirements can only be met using new materials and designs. The application of metal foam is one of the most promising methods of enhancing the impact energy absorption ability of ...
József Kertész   +4 more
doaj   +1 more source

Thermographic investigation of strain rate effects in Al foams and Ni/Al hybrid foams

open access: yesMaterials & Design, 2018
Open-cell metal foams are biomimetic open-porous materials mimicking the construction elements of bones. Based on their special porous microstructure, they are used as lightweight construction elements and for crash energy absorbers.
A. Jung   +4 more
doaj   +1 more source

Various Trade-Off Scenarios in Thermo-Hydrodynamic Performance of Metal Foams Due to Variations in Their Thickness and Structural Conditions

open access: yesEnergies, 2021
The long standing issue of increased heat transfer, always accompanied by increased pressure drop using metal foams, is addressed in the present work. Heat transfer and pressure drop, both of various magnitudes, can be observed in respect to various flow
Trilok G   +2 more
doaj   +1 more source

Tensile Behavior and Performance of Syntactic Steel Foams Prepared by Infiltration Casting

open access: yesMetals, 2022
Syntactic steel foams (SSFs) were prepared by low-pressure infiltration of molten ASTM CF-8 cast austenitic stainless steel into randomly and densely packed Al2O3 hollow spheres.
Yong Mei   +5 more
doaj   +1 more source

Influence of flow conditions and foam parameters on pressure drop and heat transfer in flow of fluids through channels filled with metal foams

open access: yesMATEC Web of Conferences, 2018
This paper reports the results of research into air, water and oil flow through pipes filled with open-cell metal foams, which form a material with a considerable potential for application in the design of process equipment.
Dyga Roman   +2 more
doaj   +1 more source

Study of Thermal Properties of Cast Metal- Ceramic Composite Foams

open access: yesArchives of Foundry Engineering, 2017
Owing to its properties, metallic foams can be used as insulation material. Thermal properties of cast metal-ceramic composite foams have applications in transport vehicles and can act as fire resistant and acoustic insulators of bulkheads.
Gawdzińska K.   +2 more
doaj   +1 more source

Mechanical behavior of open-cell aluminium foams filled with tin-bronze foams

open access: yesMaterials Research Express, 2021
The interior pore of open-cell aluminium foams filled with bronze foams is a new method of preparing aluminium foams composite. The voids of bronze foams were fabricated by in situ thermal decomposition of space-holder in a powder metallurgical sintering
Qiang Feng   +4 more
doaj   +1 more source

Research progress on matrix and mechanical properties of metal matrix composite foam materials

open access: yesFenmo yejin jishu
Metal matrix syntactic foams (MMSFs) are the new type of porous composite materials composed of hollow microsphere and metal matrix. The research progress on aluminum-based, magnesium-based, and steel-based composite foams in recent years was summarized ...
XU Lei   +4 more
doaj   +1 more source

Investigation into stress wave propagation in metal foams

open access: yesEPJ Web of Conferences, 2015
The aim of this study is to investigate stress wave propagation in metal foams under high-speed impact loading. Three-dimensional Voronoi model is established to represent real closed-cell foam. Based on the one-dimensional stress wave theory and Voronoi
Li Lang, Xue Pu, Chen Yue
doaj   +1 more source

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