Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles

Abstract The development of magnetocaloric materials represents an approach to enable efficient and environmentally friendly refrigeration. It is envisioned as a key technology to reduce CO2 emissions of air conditioning and cooling systems. Fe-Rh has been shown to be one of the best-suited material...

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Autores principales:	Ruksan Nadarajah, Joachim Landers, Soma Salamon, David Koch, Shabbir Tahir, Carlos Doñate-Buendía, Benjamin Zingsem, Rafal E. Dunin-Borkowski, Wolfgang Donner, Michael Farle, Heiko Wende, Bilal Gökce
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d095161a975e4411ae264eaaa0d8db52
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spelling	oai:doaj.org-article:d095161a975e4411ae264eaaa0d8db522021-12-02T18:18:51ZTowards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles10.1038/s41598-021-92760-52045-2322https://doaj.org/article/d095161a975e4411ae264eaaa0d8db522021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92760-5https://doaj.org/toc/2045-2322Abstract The development of magnetocaloric materials represents an approach to enable efficient and environmentally friendly refrigeration. It is envisioned as a key technology to reduce CO2 emissions of air conditioning and cooling systems. Fe-Rh has been shown to be one of the best-suited materials in terms of heat exchange per material volume. However, the Fe-Rh magnetocaloric response depends on its composition. Hence, the adaptation of material processing routes that preserve the Fe-Rh magnetocaloric response in the generated structures is a fundamental step towards the industrial development of this cooling technology. To address this challenge, the temperature-dependent properties of laser synthesized Fe-Rh nanoparticles and the laser printing of Fe-Rh nanoparticle inks are studied to generate 2D magnetocaloric structures that are potentially interesting for applications such as waste heat management of compact electrical appliances or thermal diodes, switches, and printable magnetocaloric media. The magnetization and temperature dependence of the ink’s γ-FeRh to B2-FeRh magnetic transition is analyzed throughout the complete process, finding a linear increase of the magnetization M (0.8 T, 300 K) up to 96 Am2/kg with ca. 90% of the γ-FeRh being transformed permanently into the B2-phase. In 2D structures, magnetization values of M (0.8 T, 300 K) ≈ 11 Am2/kg could be reached by laser sintering, yielding partial conversion to the B2-phase equivalent to long-time heating temperature of app. 600 K, via this treatment. Thus, the proposed procedure constitutes a robust route to achieve the generation of magnetocaloric structures.Ruksan NadarajahJoachim LandersSoma SalamonDavid KochShabbir TahirCarlos Doñate-BuendíaBenjamin ZingsemRafal E. Dunin-BorkowskiWolfgang DonnerMichael FarleHeiko WendeBilal GökceNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ruksan Nadarajah Joachim Landers Soma Salamon David Koch Shabbir Tahir Carlos Doñate-Buendía Benjamin Zingsem Rafal E. Dunin-Borkowski Wolfgang Donner Michael Farle Heiko Wende Bilal Gökce Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
description	Abstract The development of magnetocaloric materials represents an approach to enable efficient and environmentally friendly refrigeration. It is envisioned as a key technology to reduce CO2 emissions of air conditioning and cooling systems. Fe-Rh has been shown to be one of the best-suited materials in terms of heat exchange per material volume. However, the Fe-Rh magnetocaloric response depends on its composition. Hence, the adaptation of material processing routes that preserve the Fe-Rh magnetocaloric response in the generated structures is a fundamental step towards the industrial development of this cooling technology. To address this challenge, the temperature-dependent properties of laser synthesized Fe-Rh nanoparticles and the laser printing of Fe-Rh nanoparticle inks are studied to generate 2D magnetocaloric structures that are potentially interesting for applications such as waste heat management of compact electrical appliances or thermal diodes, switches, and printable magnetocaloric media. The magnetization and temperature dependence of the ink’s γ-FeRh to B2-FeRh magnetic transition is analyzed throughout the complete process, finding a linear increase of the magnetization M (0.8 T, 300 K) up to 96 Am2/kg with ca. 90% of the γ-FeRh being transformed permanently into the B2-phase. In 2D structures, magnetization values of M (0.8 T, 300 K) ≈ 11 Am2/kg could be reached by laser sintering, yielding partial conversion to the B2-phase equivalent to long-time heating temperature of app. 600 K, via this treatment. Thus, the proposed procedure constitutes a robust route to achieve the generation of magnetocaloric structures.
format	article
author	Ruksan Nadarajah Joachim Landers Soma Salamon David Koch Shabbir Tahir Carlos Doñate-Buendía Benjamin Zingsem Rafal E. Dunin-Borkowski Wolfgang Donner Michael Farle Heiko Wende Bilal Gökce
author_facet	Ruksan Nadarajah Joachim Landers Soma Salamon David Koch Shabbir Tahir Carlos Doñate-Buendía Benjamin Zingsem Rafal E. Dunin-Borkowski Wolfgang Donner Michael Farle Heiko Wende Bilal Gökce
author_sort	Ruksan Nadarajah
title	Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
title_short	Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
title_full	Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
title_fullStr	Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
title_full_unstemmed	Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
title_sort	towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d095161a975e4411ae264eaaa0d8db52
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Towards laser printing of magnetocaloric structures by inducing a magnetic phase transition in iron-rhodium nanoparticles

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