Zhang, Mingxiao ; Shao, Yanyan ; Li, Chunhui ; Zhang, Yifei ; Sun, Wen ; Wei, Zhiyang ; Skokov, Konstantin P. ; Liu, Jian ; Yan, Aru (2023)
High-performance LaFe11.6Si1.4Hy/Al composites for magnetic refrigeration: a good combination of magnetocaloric effect, mechanical properties, and thermal conductivity.
In: Journal of Alloys and Compounds, 962
doi: 10.1016/j.jallcom.2023.171123
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Bulk LaFe11.6Si1.4Hy/Al composites with the saturated hydrogen content were prepared by hot pressing and subsequent hydrogenation. Al particles were dramatically deformed when pressed at 773 K, and a reaction of La(Fe,Si)13 and Al phases took place at 873 K. The reinforced skeleton structure consisting of malleable Al phases in the composites allows brittle La(Fe,Si)13Hy particles to be well bonded after hydrogen absorption. As a result, these LaFe11.6Si1.4Hy/Al hydrides show a good comprehensive performance for magnetic refrigeration, i.e., large entropy changes of 9.8–12.5 J/kg K under 2 T, large adiabatic temperature changes of 3.36–3.97 K under 1.9 T, high thermal conductivity of 11.4–45.6 W/m K, and high bending strength of 16.8–48.2 MPa. Particularly, the 20 wt% Al composite possesses a compressive strength of 122 MPa and plastic deformation of 4.6 %.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Zhang, Mingxiao ; Shao, Yanyan ; Li, Chunhui ; Zhang, Yifei ; Sun, Wen ; Wei, Zhiyang ; Skokov, Konstantin P. ; Liu, Jian ; Yan, Aru |
| Art des Eintrags: | Bibliographie |
| Titel: | High-performance LaFe11.6Si1.4Hy/Al composites for magnetic refrigeration: a good combination of magnetocaloric effect, mechanical properties, and thermal conductivity |
| Sprache: | Englisch |
| Publikationsjahr: | 5 November 2023 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Alloys and Compounds |
| Jahrgang/Volume einer Zeitschrift: | 962 |
| DOI: | 10.1016/j.jallcom.2023.171123 |
| Kurzbeschreibung (Abstract): | Bulk LaFe11.6Si1.4Hy/Al composites with the saturated hydrogen content were prepared by hot pressing and subsequent hydrogenation. Al particles were dramatically deformed when pressed at 773 K, and a reaction of La(Fe,Si)13 and Al phases took place at 873 K. The reinforced skeleton structure consisting of malleable Al phases in the composites allows brittle La(Fe,Si)13Hy particles to be well bonded after hydrogen absorption. As a result, these LaFe11.6Si1.4Hy/Al hydrides show a good comprehensive performance for magnetic refrigeration, i.e., large entropy changes of 9.8–12.5 J/kg K under 2 T, large adiabatic temperature changes of 3.36–3.97 K under 1.9 T, high thermal conductivity of 11.4–45.6 W/m K, and high bending strength of 16.8–48.2 MPa. Particularly, the 20 wt% Al composite possesses a compressive strength of 122 MPa and plastic deformation of 4.6 %. |
| Freie Schlagworte: | metal-bonded composites, hot pressing, magnetocaloric effect, thermal conductivity, mechanical properties |
| Zusätzliche Informationen: | Artikel-ID: 171123 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien |
| Hinterlegungsdatum: | 22 Jan 2024 06:43 |
| Letzte Änderung: | 22 Jan 2024 07:46 |
| PPN: | 514874015 |
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