Measurements of Magnetocaloric Effect in LaFe11.14Co0.66Si1.2-xAlx (x=0.1, 0.2, 0.3) Alloys |
| P. Gębara a, P. Pawlika, B. Michalski b and J.J. Wysłocki a
aInstitute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland bFaculty of Materials Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland |
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| In the present work, phase constitution and thermomagnetic properties of LaFe11.14Co0.66Si1.2-xAlx (where x=0.1, 0.2, 0.3) alloys were investigated. Ingot samples were obtained by arc-melting under the low pressure of Ar atmosphere. Subsequently samples were annealed at 1323 K for 15 days. X-ray diffraction of all samples revealed coexistence of two crystalline phases dominant La(Fe,Si)13-type and minor bcc α -Fe. Furthermore, the magnetic measurements at various temperatures allowed to study the Curie temperature, magnetic entropy changes and relative cooling power. |
DOI: 10.12693/APhysPolA.127.576 PACS numbers: 75.30.Sg, 75.50.Bb |