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Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique
In recent years, closed-cell porous Aluminum (Al) has drawn increasing attention, particularly in the applications requiring reduced weight and energy absorption capability such as in the automotive and aerospace industries. In the present work, porous Al with closed-cell structure was successfully...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502918/ https://www.ncbi.nlm.nih.gov/pubmed/28773377 http://dx.doi.org/10.3390/ma9040254 |
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author | Jamal, Nur Ayuni Tan, Ai Wen Yusof, Farazila Katsuyoshi, Kondoh Hisashi, Imai Singh, S. Anuar, Hazleen |
author_facet | Jamal, Nur Ayuni Tan, Ai Wen Yusof, Farazila Katsuyoshi, Kondoh Hisashi, Imai Singh, S. Anuar, Hazleen |
author_sort | Jamal, Nur Ayuni |
collection | PubMed |
description | In recent years, closed-cell porous Aluminum (Al) has drawn increasing attention, particularly in the applications requiring reduced weight and energy absorption capability such as in the automotive and aerospace industries. In the present work, porous Al with closed-cell structure was successfully fabricated by powder metallurgy technique using PMMA as a space holder. The effects of the amount of PMMA powder on the porosity, density, microstructure and compressive behaviors of the porous specimens were systematically evaluated. The results showed that closed-cell porous Al having different porosities (12%–32%) and densities (1.6478 g/cm(3), 1.5125 g/cm(3) and 1.305 g/cm(3)) could be produced by varying the amount of PMMA (20–30 wt %). Meanwhile, the compressive behavior results demonstrated that the plateau stress decreased and the energy absorption capacity increased with increasing amount of PMMA. However, the maximum energy absorption capacity was achieved in the closed-cell porous Al with the addition of 25 wt % PMMA. Therefore, fabrication of closed-cell porous Al using 25 wt % PMMA is considered as the optimal condition in the present study since the resultant closed-cell porous Al possessed good combinations of porosity, density and plateau stress, as well as energy absorption capacity. |
format | Online Article Text |
id | pubmed-5502918 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-55029182017-07-28 Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique Jamal, Nur Ayuni Tan, Ai Wen Yusof, Farazila Katsuyoshi, Kondoh Hisashi, Imai Singh, S. Anuar, Hazleen Materials (Basel) Article In recent years, closed-cell porous Aluminum (Al) has drawn increasing attention, particularly in the applications requiring reduced weight and energy absorption capability such as in the automotive and aerospace industries. In the present work, porous Al with closed-cell structure was successfully fabricated by powder metallurgy technique using PMMA as a space holder. The effects of the amount of PMMA powder on the porosity, density, microstructure and compressive behaviors of the porous specimens were systematically evaluated. The results showed that closed-cell porous Al having different porosities (12%–32%) and densities (1.6478 g/cm(3), 1.5125 g/cm(3) and 1.305 g/cm(3)) could be produced by varying the amount of PMMA (20–30 wt %). Meanwhile, the compressive behavior results demonstrated that the plateau stress decreased and the energy absorption capacity increased with increasing amount of PMMA. However, the maximum energy absorption capacity was achieved in the closed-cell porous Al with the addition of 25 wt % PMMA. Therefore, fabrication of closed-cell porous Al using 25 wt % PMMA is considered as the optimal condition in the present study since the resultant closed-cell porous Al possessed good combinations of porosity, density and plateau stress, as well as energy absorption capacity. MDPI 2016-03-30 /pmc/articles/PMC5502918/ /pubmed/28773377 http://dx.doi.org/10.3390/ma9040254 Text en © 2016 by the authors; Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jamal, Nur Ayuni Tan, Ai Wen Yusof, Farazila Katsuyoshi, Kondoh Hisashi, Imai Singh, S. Anuar, Hazleen Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title | Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title_full | Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title_fullStr | Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title_full_unstemmed | Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title_short | Fabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique |
title_sort | fabrication and compressive properties of low to medium porosity closed-cell porous aluminum using pmma space holder technique |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502918/ https://www.ncbi.nlm.nih.gov/pubmed/28773377 http://dx.doi.org/10.3390/ma9040254 |
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