High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys

Ti–Al–Si alloys are prospective material for high-temperature applications. Due to low density, good mechanical properties, and oxidation resistance, these intermetallic alloys can be used in the aerospace and automobile industries. Ti–Al–Si alloys were prepared by powder metallurgy using reactive s...

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Autores principales: Knaislová, Anna, Novák, Pavel, Cygan, Sławomir, Jaworska, Lucyna, Cabibbo, Marcello
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459057/
https://www.ncbi.nlm.nih.gov/pubmed/28772824
http://dx.doi.org/10.3390/ma10050465
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author Knaislová, Anna
Novák, Pavel
Cygan, Sławomir
Jaworska, Lucyna
Cabibbo, Marcello
author_facet Knaislová, Anna
Novák, Pavel
Cygan, Sławomir
Jaworska, Lucyna
Cabibbo, Marcello
author_sort Knaislová, Anna
collection PubMed
description Ti–Al–Si alloys are prospective material for high-temperature applications. Due to low density, good mechanical properties, and oxidation resistance, these intermetallic alloys can be used in the aerospace and automobile industries. Ti–Al–Si alloys were prepared by powder metallurgy using reactive sintering, milling, and spark plasma sintering. One of the novel SPS techniques is high-pressure spark plasma sintering (HP SPS), which was tested in this work and applied to a Ti–10Al–20Si intermetallic alloy using a pressure of 6 GPa and temperatures ranging from 1318 K (1045 °C) to 1597 K (1324 °C). The low-porosity consolidated samples consist of Ti(5)Si(3) silicides in an aluminide (TiAl) matrix. The hardness varied between 720 and 892 HV 5.
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spelling pubmed-54590572017-07-28 High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys Knaislová, Anna Novák, Pavel Cygan, Sławomir Jaworska, Lucyna Cabibbo, Marcello Materials (Basel) Article Ti–Al–Si alloys are prospective material for high-temperature applications. Due to low density, good mechanical properties, and oxidation resistance, these intermetallic alloys can be used in the aerospace and automobile industries. Ti–Al–Si alloys were prepared by powder metallurgy using reactive sintering, milling, and spark plasma sintering. One of the novel SPS techniques is high-pressure spark plasma sintering (HP SPS), which was tested in this work and applied to a Ti–10Al–20Si intermetallic alloy using a pressure of 6 GPa and temperatures ranging from 1318 K (1045 °C) to 1597 K (1324 °C). The low-porosity consolidated samples consist of Ti(5)Si(3) silicides in an aluminide (TiAl) matrix. The hardness varied between 720 and 892 HV 5. MDPI 2017-04-27 /pmc/articles/PMC5459057/ /pubmed/28772824 http://dx.doi.org/10.3390/ma10050465 Text en © 2017 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
Knaislová, Anna
Novák, Pavel
Cygan, Sławomir
Jaworska, Lucyna
Cabibbo, Marcello
High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title_full High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title_fullStr High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title_full_unstemmed High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title_short High-Pressure Spark Plasma Sintering (HP SPS): A Promising and Reliable Method for Preparing Ti–Al–Si Alloys
title_sort high-pressure spark plasma sintering (hp sps): a promising and reliable method for preparing ti–al–si alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459057/
https://www.ncbi.nlm.nih.gov/pubmed/28772824
http://dx.doi.org/10.3390/ma10050465
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