Refrigerant Capacity and Magnetocaloric Effect on LaFe11.1Co0.8Si1.1BX Alloys

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In this paper, we report on the structure, magnetic properties and magnetocaloric effect in NaZn13-type LaFe11.1Co0.8Si1.1Bx alloys close to room temperature. The stable NaZn13 cubic structure phase (space group is Fm-3c) can easily obtained by annealing at 1080 °C for 225 hours. The maximal values of magnetic entropy change for LaFe11.1Co0.8Si1.1Bx (x=0.2, 0.25) were found to be 5.3 and 5.9 J/kg K at Curie temperature for a magnetic field change in 0-1.5 T, respectively. The calculated refrigerant capacity for a field change in 0–1.5 T is about 147 and 107 J/kg K, for LaFe11.1Co0.8Si1.1B0.2 and LaFe11.1Co0.8Si1.1B0.25 respectively, which is as larger as those of Gd(99.3%) alloy

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Periodical:

Edited by:

Aimin Yang, Jingguo Qu and Xilong Qu

Pages:

667-670

DOI:

10.4028/www.scientific.net/AMM.84-85.667

Citation:

G. Q. Xie "Refrigerant Capacity and Magnetocaloric Effect on LaFe11.1Co0.8Si1.1BX Alloys", Applied Mechanics and Materials, Vols. 84-85, pp. 667-670, 2011

Online since:

August 2011

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$35.00

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