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Magnetocaloric effect of Co62Nb6Zr2B30 amorphous alloys obtained by mechanical alloying or rapid quenching

 

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Opened Access Magnetocaloric effect of Co62Nb6Zr2B30 amorphous alloys obtained by mechanical alloying or rapid quenching
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Author: Moreno Ramírez, Luis Miguel
Blázquez Gámez, Javier Sebastián
Ipus Bados, Jhon Jairo
Borrego Moro, Josefa María
Franco García, Victorino
Conde Amiano, Alejandro
Department: Universidad de Sevilla. Departamento de Física de la Materia Condensada
Date: 2014
Published in: Journal of Applied Physics, 115, 17A302
Document type: Article
Abstract: Amorphous samples of nominal composition Co62Nb6Zr2B30 have been prepared using mechanical alloying (MA) and rapid quenching (RQ) techniques. Differences appear in Curie temperature and the phases developed after crystallization. Refrigerant capacity is enhanced 20% in the MA-sample with respect to that of RQ-sample. Neglecting the demagnetizing factor of powder samples significantly affects the exponent n characterizing the field dependence of the maximum magnetic entropy change
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URI: http://hdl.handle.net/11441/30679

DOI: http://dx.doi.org/10.1063/14857595

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