Special Issue "Porous Metals and Metallic Foams"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 31 March 2018

Special Issue Editor

Guest Editor
Prof. Dr. Afsaneh Rabiei

Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC 27695-7910, USA
Website | E-Mail
Interests: processing, characterization and failure analysis of advanced materials such as: metallic foams; coatings and thin films; composites; materials for MEMS structures; shape memory alloys; bio-materials/materials for biomedical applications; surface modification and novel classes of materials and alloys

Special Issue Information

Dear Colleagues,

It is my pleasure to guest edit another Special Issue of Metals on Porous Metals and Metallic Foams. In this Special Issue, we will aim to publish papers with a focus on manufacturing, characterization and modeling of metallic foams. I look forward to seeing your contribution for potential publication in this Special Issue.

Prof. Dr. Afsaneh Rabiei
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metal foams

  • modeling

  • characterization

  • manufacturing

  • porous metal

Published Papers (2 papers)

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Research

Open AccessFeature PaperArticle Influence of the Heating Rate on the Foaming Behavior of Various Aluminium Alloys
Metals 2017, 7(9), 323; doi:10.3390/met7090323
Received: 14 July 2017 / Revised: 28 July 2017 / Accepted: 11 August 2017 / Published: 23 August 2017
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Abstract
Powders of metallurgically prepared precursors expand to a foam differently depending on how fast they are heated to their foaming temperature. The foaming behavior of four alloys was studied with heating rates varying from 0.1 K/s to 18 K/s. It was found that
[...] Read more.
Powders of metallurgically prepared precursors expand to a foam differently depending on how fast they are heated to their foaming temperature. The foaming behavior of four alloys was studied with heating rates varying from 0.1 K/s to 18 K/s. It was found that each alloy shows its own non-linear behavior of expansion values. Alloys not containing magnesium exhibit a maximum at intermediate heating rates, whereas Mg-containing alloys tend to expand more for higher heating rates. Full article
(This article belongs to the Special Issue Porous Metals and Metallic Foams)
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Open AccessFeature PaperArticle Coalescence Avalanches in Liquid Aluminum Foams
Metals 2017, 7(8), 298; doi:10.3390/met7080298
Received: 14 July 2017 / Revised: 28 July 2017 / Accepted: 1 August 2017 / Published: 4 August 2017
PDF Full-text (1145 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
Coalescence is the rupture of a film between two adjacent bubbles in any type of liquid foam and has pronounced influence on the development of its macrostructure after solidification, mostly leading to larger pores and a wider size distribution. Foamable AlSi6Cu4 + 0.5
[...] Read more.
Coalescence is the rupture of a film between two adjacent bubbles in any type of liquid foam and has pronounced influence on the development of its macrostructure after solidification, mostly leading to larger pores and a wider size distribution. Foamable AlSi6Cu4 + 0.5 wt % TiH2 precursors made following the powder metallurgical route were foamed in a gas-tight X-ray transparent furnace under 500 kPa (5 bar) pressure with subsequent pressure release. Coalescence was investigated by fast X-ray radioscopy at a frame rate of 1250 Hz and an effective pixel size of 9 µm at the beamline ID-19, European Synchrotron Radiation Facility (ESRF), Grenoble, France. A self-developed program yielded the temporal and spatial detection of coalescence events in the acquired radioscopies. We observed the occurrence of film ruptures in a short temporal and spatial distance and we will refer to these phenomena as “avalanches”. Full article
(This article belongs to the Special Issue Porous Metals and Metallic Foams)
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Figure 1

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