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Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures

In this work, composite materials were obtained by spark plasma sintering of an Al(12)Mg(17)-B-Si powder mixture. The structure, phase composition, and mechanical properties of the obtained composites were studied. It was found that various compounds based on B(12) icosahedrons, such as AlB(12), B(4...

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Autores principales: Nikitin, Pavel, Zhukov, Ilya, Matveev, Alexey, Sokolov, Sergei, Sachkov, Victor, Vorozhtsov, Alexander
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182279/
https://www.ncbi.nlm.nih.gov/pubmed/35683750
http://dx.doi.org/10.3390/nano12111895
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author Nikitin, Pavel
Zhukov, Ilya
Matveev, Alexey
Sokolov, Sergei
Sachkov, Victor
Vorozhtsov, Alexander
author_facet Nikitin, Pavel
Zhukov, Ilya
Matveev, Alexey
Sokolov, Sergei
Sachkov, Victor
Vorozhtsov, Alexander
author_sort Nikitin, Pavel
collection PubMed
description In this work, composite materials were obtained by spark plasma sintering of an Al(12)Mg(17)-B-Si powder mixture. The structure, phase composition, and mechanical properties of the obtained composites were studied. It was found that various compounds based on B(12) icosahedrons, such as AlB(12), B(4)Si, and B(6)Si, are formed during spark plasma sintering. Based on the SEM images and results of XRD analysis of the obtained specimens, a probable scheme for the formation of the phase composition of composite materials during spark plasma sintering was proposed. An increase in the Al(12)Mg(17)-B powder content in the initial mixture from 30 to 70 wt% leads to an increase in hardness from 16.55 to 21.24 GPa and a decrease in the friction coefficient and wear rate from 0.56 to 0.32 and 13.60 to 5.60 10(−5) mm(−3)/(N/m), respectively.
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spelling pubmed-91822792022-06-10 Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures Nikitin, Pavel Zhukov, Ilya Matveev, Alexey Sokolov, Sergei Sachkov, Victor Vorozhtsov, Alexander Nanomaterials (Basel) Article In this work, composite materials were obtained by spark plasma sintering of an Al(12)Mg(17)-B-Si powder mixture. The structure, phase composition, and mechanical properties of the obtained composites were studied. It was found that various compounds based on B(12) icosahedrons, such as AlB(12), B(4)Si, and B(6)Si, are formed during spark plasma sintering. Based on the SEM images and results of XRD analysis of the obtained specimens, a probable scheme for the formation of the phase composition of composite materials during spark plasma sintering was proposed. An increase in the Al(12)Mg(17)-B powder content in the initial mixture from 30 to 70 wt% leads to an increase in hardness from 16.55 to 21.24 GPa and a decrease in the friction coefficient and wear rate from 0.56 to 0.32 and 13.60 to 5.60 10(−5) mm(−3)/(N/m), respectively. MDPI 2022-06-01 /pmc/articles/PMC9182279/ /pubmed/35683750 http://dx.doi.org/10.3390/nano12111895 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nikitin, Pavel
Zhukov, Ilya
Matveev, Alexey
Sokolov, Sergei
Sachkov, Victor
Vorozhtsov, Alexander
Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title_full Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title_fullStr Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title_full_unstemmed Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title_short Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the Al(12)Mg(17)-B-Si Powder Mixtures
title_sort phase composition, structure and properties of the spark plasma sintered ceramics obtained from the al(12)mg(17)-b-si powder mixtures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9182279/
https://www.ncbi.nlm.nih.gov/pubmed/35683750
http://dx.doi.org/10.3390/nano12111895
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