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Journal article

A Monolithic Perovskite Structure for Use as a Magnetic Regenerator : A Monolithic Perovskite Structure for Use as a Magnetic Regenerator

By Pryds, Nini1,2,3; Clemens, Frank4; Menon, Mohan2,3,5; Nielsen, Pernille Hedemark2,3,5; Brodersen, Karen2,3,5; Bjørk, Rasmus1,2,3; Bahl, Christian Robert Haffenden1,2,3; Engelbrecht, Kurt1,2,3; Nielsen, Kaspar Kirstein1,2,3; Smith, Anders2,3,6

From

Thermo Ceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1

Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2

Risø National Laboratory for Sustainable Energy, Technical University of Denmark3

Swiss Federal Laboratories for Materials Science and Technology (Empa)4

Ceramic processing, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5

Fuel Cells and Solid State Chemistry Division. Management, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark6

A La0.67Ca0.26Sr0.07Mn1.05O3 (LCSM) perovskite was prepared for the first time as a ceramic monolithic regenerator used in a regenerative magnetic refrigeration device. The parameters influencing the extrusion process and the performance of the regenerator, such as the nature of the monolith paste and the influence of the sintering on the adiabatic temperature change, were investigated.

Comparisons between the extruded monolithic structure before and after the sintering showed that an increase of the adiabatic temperature change was seen after the sintering. Furthermore, calculations show that the performance of the monolithic structure is potentially superior to a parallel plate regenerator, indicating the potential cost and structural benefit of using such structure, i.e. a mechanically stable ceramic thin wall structure, which can be produced in one processing step.

Language: English
Year: 2011
Pages: 2549-2555
ISSN: 15512916 and 00027820
Types: Journal article
DOI: 10.1111/j.1551-2916.2011.04398.x
ORCIDs: Pryds, Nini , Bjørk, Rasmus , Bahl, Christian Robert Haffenden , Engelbrecht, Kurt , Nielsen, Kaspar Kirstein and Smith, Anders
Keywords

Magnetic refrigeration Magnetisk køling

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