Manufacture, characterisation and application of cellular metals and metal foams

Banhart, John

doi:10.1016/s0079-6425(00)00002-5

Cited by 3,400 publications

(1,999 citation statements)

References 123 publications

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“…According to the state, in which the metal is processed, it is possible to divide the manufacturing processes into four groups. The porous metallic materials may be made from [1,5]: -Molten metal (e.g. direct foaming of molten metal, foaming agents, casting, etc.…”

Section: Methods For Manufacture Of Metallic Foamsmentioning

confidence: 99%

“…Porosity can reach 30% up to 93%, depending on the manufacturing method and the material used. By changing the parameters of the manufacturing process it is possible to obtain a porous structure with different pore sizes and shapes and with different types of arrangements (regular or stochastic) [4,5].…”

Section: Methods For Manufacture Of Metallic Foamsmentioning

confidence: 99%

“…-Thermal stability: metallic porous materials preserve high mechanical properties even at high-temperatures. -Heat transfer: metallic porous materials with open structure have large specific surface, which gives them better abilities of heat exchange [4,5].…”

Section: Properties and Utilization Of Metallic Foamsmentioning

confidence: 99%

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Preparation and Evaluation of Properties of Cast Metallic Foams with Regular Inner Structure

Lichý¹,

Elbel²,

Kroupová³

et al. 2017

Archives of Metallurgy and Materials

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Lately we encounter still more new applications of metallic foams, as well as possible methods of their manufacture. These metallic materials have specific properties, such as large rigidity at low density, in some cases high thermal conductivity, capability to absorb energy, etc. The work is focused on the preparation of these materials using conventional casting technology, which ensures rapid and economically feasible method for production of shaped components. In the experimental part we studied conditions of casting of metallic foams with a regular structure made of ferrous and non-ferrous alloys. For thus obtained castings we evaluated the achieved microstructure and mechanical properties, which determine the possible use of these materials. The samples were subjected to compression tests, by which we investigated deformation behaviour of selected materials and determined the value of energy absorption.

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Section: Methods For Manufacture Of Metallic Foamsmentioning

confidence: 99%

Section: Methods For Manufacture Of Metallic Foamsmentioning

confidence: 99%

See 1 more Smart Citation

Preparation and Evaluation of Properties of Cast Metallic Foams with Regular Inner Structure

Lichý¹,

Elbel²,

Kroupová³

et al. 2017

Archives of Metallurgy and Materials

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“…Porous titanium and titanium alloys are produced by solid state processes due to their high melting point and strong reactivity [14]. Loose powder sintering [15], space holder method [16,17], sintering of hollow spheres [18], gas entrapment method [19], replication method [20] and electron beam/laser melting of powders [21][22][23] are common techniques in literature for production of porous titanium and its alloys.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Mechanical Response of Porous Ti-6al-4v Alloys Produced by Different Compaction Techniques

Selimoğlu¹,

Aşık²,

Şen³

et al. 2017

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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Porous Ti-6Al-4V alloys are attractive candidates as implant materials due to their good biocompatibility combined with the porous structure leading to increased osseointegration and decreased stiffness. Accordingly, different processing techniques were employed for the production of Ti-6Al-4V foams in the literature. Among these techniques, sintering with space holder is used to produce porous Ti-6Al-4V alloys in this study. Magnesium was employed as the space holder material because of its relatively low boiling point as well as high oxygen affinity. Two different compaction techniques, die compaction with hydraulic pressing and cold isostatic pressing (CIP), were employed for obtaining green compacts. Both spherical and nonspherical Ti-6Al-4V powders were used to investigate the effect of powder shape on compaction. Processed foams were characterized in terms of both microstructural and mechanical aspects in order to investigate the effect of pressing conditions in combination with powder characteristics. It was observed that NS-CIP foam, which was produced by compacting nonspherical powders by cold isostatic press, has the highest strength. However, the S-DP foam, which was produced by diepressing of spherical powders, has the highest toughness.

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“…These characteristics have made diverse applications of porous materials, including separation filters, catalyst supports and energy absorbers [1][2][3]. In this field, application models underline the control of the pore structure (shape and orientation) as well as the porosity and pore size.…”

Section: Introductionmentioning

confidence: 99%

Fabrication Of Porous Ti By Thermal Decomposition And Sintering Of PMMA/TiH2 Powder Compact

Jeon¹,

Kim²,

Suk³

et al. 2015

Archives of Metallurgy and Materials

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Porous Ti with controlled pore structure was fabricated by thermal decomposition and sintering process using TiH 2 powders and Polymethylmethacrylates (PMMA) beads as pore forming agent. The beads sizes of 8 and 50 µm were used as a template for fabricating the porous Ti. The TiH 2 powder compacts with 20 and 70 vol% PMMA were prepared by uniaxial pressing and sintered for 2 h at 1100 • C. TGA analysis revealed that the PMMA and TiH 2 were thermally decomposed at about 400 • C forming pores and at about 600 • C into metallic Ti phase. The porosity increased with increase in the amount of PMMA addition. Also, the microstructure observation showed that the pore size and shape were strongly dependent on the PMMA shapes.

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Manufacture, characterisation and application of cellular metals and metal foams

Cited by 3,400 publications

References 123 publications

Preparation and Evaluation of Properties of Cast Metallic Foams with Regular Inner Structure

Preparation and Evaluation of Properties of Cast Metallic Foams with Regular Inner Structure

Comparison of the Mechanical Response of Porous Ti-6al-4v Alloys Produced by Different Compaction Techniques

Fabrication Of Porous Ti By Thermal Decomposition And Sintering Of PMMA/TiH2 Powder Compact

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