Kaeswurm, B. ; Friemert, K. ; Gürsoy, M. ; Skokov, K. P. ; Gutfleisch, O. (2016)
Direct measurement of the magnetocaloric effect in cementite.
In: Journal of Magnetism and Magnetic Materials, 410
doi: 10.1016/j.jmmm.2016.02.080
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Measurements of the magnetocaloric effect of cementite at its Curie temperature of 475 K are presented. An adiabatic temperature change of 1.76 +/- 0.01 K was measured using a direct measurement technique. The isothermal entropy change was determined from measurements of magnetisation isotherms and was shown to be 3.07 J K-1 kg(-1) in a field change of 2 T. The field dependencies of both magnetocaloric properties follow the H-2/3 dependence typical for ferromagnetic materials with a second order phase transition. The material may be of interest in magnetocaloric applications such as magnetic refrigeration or thermomagnetic power generation. (C) 2016 Elsevier B.V. All rights reserved.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Kaeswurm, B. ; Friemert, K. ; Gürsoy, M. ; Skokov, K. P. ; Gutfleisch, O. |
| Art des Eintrags: | Bibliographie |
| Titel: | Direct measurement of the magnetocaloric effect in cementite |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Juli 2016 |
| Verlag: | ELSEVIER SCIENCE BV |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Magnetism and Magnetic Materials |
| Jahrgang/Volume einer Zeitschrift: | 410 |
| DOI: | 10.1016/j.jmmm.2016.02.080 |
| Kurzbeschreibung (Abstract): | Measurements of the magnetocaloric effect of cementite at its Curie temperature of 475 K are presented. An adiabatic temperature change of 1.76 +/- 0.01 K was measured using a direct measurement technique. The isothermal entropy change was determined from measurements of magnetisation isotherms and was shown to be 3.07 J K-1 kg(-1) in a field change of 2 T. The field dependencies of both magnetocaloric properties follow the H-2/3 dependence typical for ferromagnetic materials with a second order phase transition. The material may be of interest in magnetocaloric applications such as magnetic refrigeration or thermomagnetic power generation. (C) 2016 Elsevier B.V. All rights reserved. |
| Freie Schlagworte: | Magnetocaloric effect, Second order phase transition, Ferromagnetism, Cementite, Cohenite |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 11 Mai 2016 13:03 |
| Letzte Änderung: | 31 Jan 2019 15:14 |
| PPN: | |
| Sponsoren: | M.G. received funding from Deutsche Forschungsgemeinschaft (Darmstadt graduate school of energy science and engineering, GSC 1070)., The research leading to these results has received funding from the European community's seventh framework programme FP7/2007-2013 under grant agreement no. 310748 (DRREAM). |
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