Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature

The magnetocaloric properties of rare-earth free Mn0.45Fe0.55NiSi1-ySny (y=0.12, 0.14, 0.16, and 0.18) alloys were studied. The raw material cost is significantly lower than the counterpart alloys containing Ge or Ga. Sn substitution reduced the Curie temperature (Tc) from 343 K (for y=0.12) to 248...

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Main Authors: Deepak, Kamble, Ramanujan, R. V.
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/136674
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1366742023-07-14T15:44:51Z Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature Deepak, Kamble Ramanujan, R. V. School of Materials Science & Engineering Campus for Research Excellence and Technological Enterprise Engineering::Materials Alloy design Phase Change Materials The magnetocaloric properties of rare-earth free Mn0.45Fe0.55NiSi1-ySny (y=0.12, 0.14, 0.16, and 0.18) alloys were studied. The raw material cost is significantly lower than the counterpart alloys containing Ge or Ga. Sn substitution reduced the Curie temperature (Tc) from 343 K (for y=0.12) to 248 K (for y=0.18), offering a wide range of working temperatures near room temperature. The alloys exhibited a training effect. The first-order transition weakened as the Sn content increased from 0.12 to 0.18. Interestingly, magnetostructural transformation was observed near room temperature for y=0.14, with a maximum entropy change (Δ Smax) of 8.64 Jkg-1K-1 for a field change of 5 T. Hence, Mn0.45Fe0.55NiSi1-ySny alloys are promising candidates for low cost, near room temperature, magnetocaloric applications. Accepted version 2020-01-09T08:33:23Z 2020-01-09T08:33:23Z 2018 Journal Article Deepak, K., & Ramanujan, R. V. (2018). Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature. IEEE Transactions on Magnetics, 54(11), 1-5. doi:10.1109/TMAG.2018.2832090 0018-9464 https://hdl.handle.net/10356/136674 10.1109/TMAG.2018.2832090 2-s2.0-85047823379 11 54 1 5 en IEEE Transactions on Magnetics © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TMAG.2018.2832090 application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Alloy design
Phase Change Materials
spellingShingle Engineering::Materials
Alloy design
Phase Change Materials
Deepak, Kamble
Ramanujan, R. V.
Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
description The magnetocaloric properties of rare-earth free Mn0.45Fe0.55NiSi1-ySny (y=0.12, 0.14, 0.16, and 0.18) alloys were studied. The raw material cost is significantly lower than the counterpart alloys containing Ge or Ga. Sn substitution reduced the Curie temperature (Tc) from 343 K (for y=0.12) to 248 K (for y=0.18), offering a wide range of working temperatures near room temperature. The alloys exhibited a training effect. The first-order transition weakened as the Sn content increased from 0.12 to 0.18. Interestingly, magnetostructural transformation was observed near room temperature for y=0.14, with a maximum entropy change (Δ Smax) of 8.64 Jkg-1K-1 for a field change of 5 T. Hence, Mn0.45Fe0.55NiSi1-ySny alloys are promising candidates for low cost, near room temperature, magnetocaloric applications.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Deepak, Kamble
Ramanujan, R. V.
format Article
author Deepak, Kamble
Ramanujan, R. V.
author_sort Deepak, Kamble
title Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
title_short Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
title_full Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
title_fullStr Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
title_full_unstemmed Magnetocaloric properties of low-cost Fe and Sn substituted MnNiSi-based alloys exhibiting a magnetostructural transition near room temperature
title_sort magnetocaloric properties of low-cost fe and sn substituted mnnisi-based alloys exhibiting a magnetostructural transition near room temperature
publishDate 2020
url https://hdl.handle.net/10356/136674
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