Artículo
Grinding and particle size selection as a procedure to enhance the magnetocaloric response of La( Fe, Si)(13) bulk samples
Autor/es | Ipus Bados, Jhon Jairo
Borrego Moro, Josefa María Moreno Ramírez, Luis Miguel Blázquez Gámez, Javier Sebastián Franco García, Victorino Conde Amiano, Alejandro |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2017-05 |
Fecha de depósito | 2023-12-27 |
Publicado en |
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Resumen | The magnetocaloric effect of La(Fe,Si)13 samples deteriorates with the presence of secondary phases.
However, it is highly challenging to produce single phase samples by conventional procedures and purification requires ... The magnetocaloric effect of La(Fe,Si)13 samples deteriorates with the presence of secondary phases. However, it is highly challenging to produce single phase samples by conventional procedures and purification requires long annealing time. We propose grinding and particle size selection of non-optimal starting samples as procedure to enhance the magnetocaloric response. In this study a starting multiphase LaFe11.8Si1.2 ingot was grinded and sieved to select three different particle size ranges. X-ray diffraction and Mossbauer spectrometry reveal that all samples mainly contain fcc-La(Fe,Si) € 13 and bccFe(Si) phases. Microstructural and magnetic results show that the fcc-La(Fe,Si)13 phase fraction increases for samples with the smallest average particle size, increasing their magnetocaloric response in a factor larger than three with respect to that of the bulk sample. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) Junta de Andalucía |
Identificador del proyecto | MAT2013-45165-P
MAT2016-77265-R |
Cita | Ipus Bados, J.J., Borrego Moro, J.M., Moreno Ramírez, L.M., Blázquez Gámez, J.S., Franco García, V. y Conde Amiano, A. (2017). Grinding and particle size selection as a procedure to enhance the magnetocaloric response of La( Fe, Si)(13) bulk samples. Intermetallics, 84, 30-34. https://doi.org/10.1016/j.intermet.2016.12.022. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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2017-Intermetallics84_30-34.pdf | 1.413Mb | [PDF] | Ver/ | Versión aceptada |