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Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss

Metamagnetic shape memory alloys (MMSMAs) are attractive functional materials owing to their unique properties such as magnetostrain, magnetoresistance, and the magnetocaloric effect caused by magnetic‐field‐induced transitions. However, the energy loss during the martensitic transformation, that is...

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Autores principales: Ito, Tatsuya, Xu, Xiao, Miyake, Atsushi, Kinoshita, Yuto, Nagasako, Makoto, Takahashi, Kohki, Omori, Toshihiro, Tokunaga, Masashi, Kainuma, Ryosuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10427369/
https://www.ncbi.nlm.nih.gov/pubmed/37309306
http://dx.doi.org/10.1002/advs.202207779
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author Ito, Tatsuya
Xu, Xiao
Miyake, Atsushi
Kinoshita, Yuto
Nagasako, Makoto
Takahashi, Kohki
Omori, Toshihiro
Tokunaga, Masashi
Kainuma, Ryosuke
author_facet Ito, Tatsuya
Xu, Xiao
Miyake, Atsushi
Kinoshita, Yuto
Nagasako, Makoto
Takahashi, Kohki
Omori, Toshihiro
Tokunaga, Masashi
Kainuma, Ryosuke
author_sort Ito, Tatsuya
collection PubMed
description Metamagnetic shape memory alloys (MMSMAs) are attractive functional materials owing to their unique properties such as magnetostrain, magnetoresistance, and the magnetocaloric effect caused by magnetic‐field‐induced transitions. However, the energy loss during the martensitic transformation, that is, the dissipation energy, E (dis), is sometimes large for these alloys, which limits their applications. In this paper, a new Pd(2)MnGa Heusler‐type MMSMA with an extremely small E (dis) and hysteresis is reported. The microstructures, crystal structures, magnetic properties, martensitic transformations, and magnetic‐field‐induced strain of aged Pd(2)MnGa alloys are investigated. A martensitic transformation from L2(1) to 10M structures is seen at 127.4 K with a small thermal hysteresis of 1.3 K. The reverse martensitic transformation is induced by applying a magnetic field with a small E (dis) (= 0.3 J mol(−1) only) and a small magnetic‐field hysteresis (= 7 kOe) at 120 K. The low values of E (dis) and the hysteresis may be attributed to good lattice compatibility in the martensitic transformation. A large magnetic‐field‐induced strain of 0.26% is recorded, indicating the proposed MMSMA's potential as an actuator. The Pd(2)MnGa alloy with low values of E (dis) and hysteresis may enable new possibilities for high‐efficiency MMSMAs.
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spelling pubmed-104273692023-08-17 Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss Ito, Tatsuya Xu, Xiao Miyake, Atsushi Kinoshita, Yuto Nagasako, Makoto Takahashi, Kohki Omori, Toshihiro Tokunaga, Masashi Kainuma, Ryosuke Adv Sci (Weinh) Research Articles Metamagnetic shape memory alloys (MMSMAs) are attractive functional materials owing to their unique properties such as magnetostrain, magnetoresistance, and the magnetocaloric effect caused by magnetic‐field‐induced transitions. However, the energy loss during the martensitic transformation, that is, the dissipation energy, E (dis), is sometimes large for these alloys, which limits their applications. In this paper, a new Pd(2)MnGa Heusler‐type MMSMA with an extremely small E (dis) and hysteresis is reported. The microstructures, crystal structures, magnetic properties, martensitic transformations, and magnetic‐field‐induced strain of aged Pd(2)MnGa alloys are investigated. A martensitic transformation from L2(1) to 10M structures is seen at 127.4 K with a small thermal hysteresis of 1.3 K. The reverse martensitic transformation is induced by applying a magnetic field with a small E (dis) (= 0.3 J mol(−1) only) and a small magnetic‐field hysteresis (= 7 kOe) at 120 K. The low values of E (dis) and the hysteresis may be attributed to good lattice compatibility in the martensitic transformation. A large magnetic‐field‐induced strain of 0.26% is recorded, indicating the proposed MMSMA's potential as an actuator. The Pd(2)MnGa alloy with low values of E (dis) and hysteresis may enable new possibilities for high‐efficiency MMSMAs. John Wiley and Sons Inc. 2023-06-12 /pmc/articles/PMC10427369/ /pubmed/37309306 http://dx.doi.org/10.1002/advs.202207779 Text en © 2023 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Ito, Tatsuya
Xu, Xiao
Miyake, Atsushi
Kinoshita, Yuto
Nagasako, Makoto
Takahashi, Kohki
Omori, Toshihiro
Tokunaga, Masashi
Kainuma, Ryosuke
Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title_full Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title_fullStr Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title_full_unstemmed Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title_short Pd(2)MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss
title_sort pd(2)mnga metamagnetic shape memory alloy with small energy loss
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10427369/
https://www.ncbi.nlm.nih.gov/pubmed/37309306
http://dx.doi.org/10.1002/advs.202207779
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