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Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy
Alloys of Mn(55)Al(45)C(2) with additions of VC nano-particles have been synthesized and their properties evaluated. The Mn(55)Al(45)C(2)(VC)(x) (x = 0.25, 0.5 and 1) alloys have been prepared by induction melting resulting in a high content of the ferromagnetic τ-phase (> 94 wt.%). Powder X-ray...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280156/ https://www.ncbi.nlm.nih.gov/pubmed/34262064 http://dx.doi.org/10.1038/s41598-021-93395-2 |
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author | Shtender, Vitalii Stopfel, Henry Hedlund, Daniel Karlsson, Dennis Pothala, Rajasekhar Skårman, Björn Olsson, Fredrik Vidarsson, Hilmar Andersson, Gabriella Svedlindh, Peter Sahlberg, Martin |
author_facet | Shtender, Vitalii Stopfel, Henry Hedlund, Daniel Karlsson, Dennis Pothala, Rajasekhar Skårman, Björn Olsson, Fredrik Vidarsson, Hilmar Andersson, Gabriella Svedlindh, Peter Sahlberg, Martin |
author_sort | Shtender, Vitalii |
collection | PubMed |
description | Alloys of Mn(55)Al(45)C(2) with additions of VC nano-particles have been synthesized and their properties evaluated. The Mn(55)Al(45)C(2)(VC)(x) (x = 0.25, 0.5 and 1) alloys have been prepared by induction melting resulting in a high content of the ferromagnetic τ-phase (> 94 wt.%). Powder X-ray diffraction indicates that nano-VC can be dissolved in the alloy matrix up to 1 at.%. On the other side, metallography investigations by scanning electron microscopy and scanning transmission electron microscope show inclusions of the nanosized additives in the microstructure. The effect of nano-VC on the grain and twin boundaries has been studied by electron backscattering diffraction. The magnetization has been measured by magnetometry up to 9 T while the domain structure has been studied using both magnetic force microscopy as well as Kerr-microscopy. For nano-VC contents above 0.25 at.%, a clear increase of the coercive force is observed, from 57 to 71 kA/m. The optimum appears to be for 0.5 at.% nano-VC which shows a 25% increase in coercive force without losing any saturation magnetization. This independent increase in coercivity is believed to originate from the nano-VC reducing the overall magnetic domain size. Overall, we observe that addition of nano-VC could be an interesting route to increase the coercive force of MnAl, without sacrificing saturation magnetization. |
format | Online Article Text |
id | pubmed-8280156 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82801562021-07-15 Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy Shtender, Vitalii Stopfel, Henry Hedlund, Daniel Karlsson, Dennis Pothala, Rajasekhar Skårman, Björn Olsson, Fredrik Vidarsson, Hilmar Andersson, Gabriella Svedlindh, Peter Sahlberg, Martin Sci Rep Article Alloys of Mn(55)Al(45)C(2) with additions of VC nano-particles have been synthesized and their properties evaluated. The Mn(55)Al(45)C(2)(VC)(x) (x = 0.25, 0.5 and 1) alloys have been prepared by induction melting resulting in a high content of the ferromagnetic τ-phase (> 94 wt.%). Powder X-ray diffraction indicates that nano-VC can be dissolved in the alloy matrix up to 1 at.%. On the other side, metallography investigations by scanning electron microscopy and scanning transmission electron microscope show inclusions of the nanosized additives in the microstructure. The effect of nano-VC on the grain and twin boundaries has been studied by electron backscattering diffraction. The magnetization has been measured by magnetometry up to 9 T while the domain structure has been studied using both magnetic force microscopy as well as Kerr-microscopy. For nano-VC contents above 0.25 at.%, a clear increase of the coercive force is observed, from 57 to 71 kA/m. The optimum appears to be for 0.5 at.% nano-VC which shows a 25% increase in coercive force without losing any saturation magnetization. This independent increase in coercivity is believed to originate from the nano-VC reducing the overall magnetic domain size. Overall, we observe that addition of nano-VC could be an interesting route to increase the coercive force of MnAl, without sacrificing saturation magnetization. Nature Publishing Group UK 2021-07-14 /pmc/articles/PMC8280156/ /pubmed/34262064 http://dx.doi.org/10.1038/s41598-021-93395-2 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Shtender, Vitalii Stopfel, Henry Hedlund, Daniel Karlsson, Dennis Pothala, Rajasekhar Skårman, Björn Olsson, Fredrik Vidarsson, Hilmar Andersson, Gabriella Svedlindh, Peter Sahlberg, Martin Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title | Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title_full | Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title_fullStr | Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title_full_unstemmed | Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title_short | Influence of nano-VC on the structural and magnetic properties of MnAlC-alloy |
title_sort | influence of nano-vc on the structural and magnetic properties of mnalc-alloy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8280156/ https://www.ncbi.nlm.nih.gov/pubmed/34262064 http://dx.doi.org/10.1038/s41598-021-93395-2 |
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