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Polymer-Bonded La(Fe,Mn,Si)13Hx Plates for Heat Exchangers

Radulov, Iliya A. and Skokov, Konstantin P. and Karpenkov, Dmitriy Yu and Braun, Tobias and Gutfleisch, Oliver (2015):
Polymer-Bonded La(Fe,Mn,Si)13Hx Plates for Heat Exchangers.
In: IEEE Transactions on Magnetics, IEEE, pp. 1-4, 51, (11), ISSN 0018-9464, [Online-Edition: http://dx.doi.org/10.1109/TMAG.2015.2435051],
[Article]

Abstract

Composite materials containing hydrogenated La(Fe,Mn,Si)13 powder and 5 wt.% of polymer binder have very good magnetocaloric properties and can be machined in a heat exchanger. These heat exchangers have to fulfill certain requirements regarding their mechanical and chemical stability. In this paper, we have investigated the magnetocaloric properties of thin composite plates produced by two different methods: 1) wire saw cutting and 2) cold rolling. The flexural strength of the plates was investigated by three-point bending method. Furthermore, the corrosive behavior of the plates in different heat transfer fluids was investigated. Finally, the adiabatic temperature change and the magnetic entropy change of the plates were observed over a seven-month period in order to evaluate their applicability in a real device.

Item Type: Article
Erschienen: 2015
Creators: Radulov, Iliya A. and Skokov, Konstantin P. and Karpenkov, Dmitriy Yu and Braun, Tobias and Gutfleisch, Oliver
Title: Polymer-Bonded La(Fe,Mn,Si)13Hx Plates for Heat Exchangers
Language: English
Abstract:

Composite materials containing hydrogenated La(Fe,Mn,Si)13 powder and 5 wt.% of polymer binder have very good magnetocaloric properties and can be machined in a heat exchanger. These heat exchangers have to fulfill certain requirements regarding their mechanical and chemical stability. In this paper, we have investigated the magnetocaloric properties of thin composite plates produced by two different methods: 1) wire saw cutting and 2) cold rolling. The flexural strength of the plates was investigated by three-point bending method. Furthermore, the corrosive behavior of the plates in different heat transfer fluids was investigated. Finally, the adiabatic temperature change and the magnetic entropy change of the plates were observed over a seven-month period in order to evaluate their applicability in a real device.

Journal or Publication Title: IEEE Transactions on Magnetics
Volume: 51
Number: 11
Publisher: IEEE
Uncontrolled Keywords: Composite, La(Fe,Mn,Si)(13)H-x, magnetocaloric, polymer-bonded
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Functional Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 08 Jan 2016 10:21
Official URL: http://dx.doi.org/10.1109/TMAG.2015.2435051
Identification Number: doi:10.1109/TMAG.2015.2435051
Funders: Sponsored by IEEE Magnetics Society
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