Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering
In this research, we successfully fabricate high-hardness and lightweight Al-Ti composites. Al-Ti composites powders with three compositions (Al-20, 50, and 80 vol.% Ti) are mixed using ball milling and subsequently subjected to spark plasma sintering (SPS). The microstructures and phases of the Al-...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356306/ https://www.ncbi.nlm.nih.gov/pubmed/30669667 http://dx.doi.org/10.3390/ma12020331 |
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author | Park, Kwangjae Kim, Dasom Kim, Kyungju Cho, Seungchan Kwon, Hansang |
author_facet | Park, Kwangjae Kim, Dasom Kim, Kyungju Cho, Seungchan Kwon, Hansang |
author_sort | Park, Kwangjae |
collection | PubMed |
description | In this research, we successfully fabricate high-hardness and lightweight Al-Ti composites. Al-Ti composites powders with three compositions (Al-20, 50, and 80 vol.% Ti) are mixed using ball milling and subsequently subjected to spark plasma sintering (SPS). The microstructures and phases of the Al-Ti composites are characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) spectroscopy, and field emission-electron probe microanalysis (FE-EPMA). These tests confirm the presence of several intermetallic compounds (ICs) (Al(3)Ti, Al(5)Ti(2), Al(11)Ti(5)) in the composites, and we are able to confirm that these ICs are produced by the reaction of Al and Ti during the SPS process. Furthermore, thermogravimetric-differential thermal analysis (TG-DTA) is used to analyze the formation behavior of the ICs. In addition, the mechanical properties of the composites are measured using their Vickers hardness and it is observed that the Al-80 vol.% Ti composite exhibits the highest hardness. Consequently, it is assumed that SPS is suitable for fabricating Al-Ti composites which represent the next-generation materials to be used in various industrial fields as high-hardness and lightweight materials. |
format | Online Article Text |
id | pubmed-6356306 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63563062019-02-04 Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering Park, Kwangjae Kim, Dasom Kim, Kyungju Cho, Seungchan Kwon, Hansang Materials (Basel) Article In this research, we successfully fabricate high-hardness and lightweight Al-Ti composites. Al-Ti composites powders with three compositions (Al-20, 50, and 80 vol.% Ti) are mixed using ball milling and subsequently subjected to spark plasma sintering (SPS). The microstructures and phases of the Al-Ti composites are characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD) spectroscopy, and field emission-electron probe microanalysis (FE-EPMA). These tests confirm the presence of several intermetallic compounds (ICs) (Al(3)Ti, Al(5)Ti(2), Al(11)Ti(5)) in the composites, and we are able to confirm that these ICs are produced by the reaction of Al and Ti during the SPS process. Furthermore, thermogravimetric-differential thermal analysis (TG-DTA) is used to analyze the formation behavior of the ICs. In addition, the mechanical properties of the composites are measured using their Vickers hardness and it is observed that the Al-80 vol.% Ti composite exhibits the highest hardness. Consequently, it is assumed that SPS is suitable for fabricating Al-Ti composites which represent the next-generation materials to be used in various industrial fields as high-hardness and lightweight materials. MDPI 2019-01-21 /pmc/articles/PMC6356306/ /pubmed/30669667 http://dx.doi.org/10.3390/ma12020331 Text en © 2019 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 Park, Kwangjae Kim, Dasom Kim, Kyungju Cho, Seungchan Kwon, Hansang Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title | Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title_full | Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title_fullStr | Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title_full_unstemmed | Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title_short | Behavior of Intermetallic Compounds of Al-Ti Composite Manufactured by Spark Plasma Sintering |
title_sort | behavior of intermetallic compounds of al-ti composite manufactured by spark plasma sintering |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356306/ https://www.ncbi.nlm.nih.gov/pubmed/30669667 http://dx.doi.org/10.3390/ma12020331 |
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