Krautz, Maria ; Funk, Alexander ; Skokov, Konstantin P. ; Gottschall, Tino ; Eckert, Jürgen ; Gutfleisch, Oliver ; Waske, Anja (2015)
A new type of La(Fe,Si)13-based magnetocaloric composite with amorphous metallic matrix.
In: Scripta Materialia, 95
doi: 10.1016/j.scriptamat.2014.10.002
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on novel magnetocaloric composites based on La(Fe,Si)13 particles in an amorphous metallic matrix. Hot compaction at the glass transition temperature, Tg, of the matrix prevents crack formation as commonly occurs in conventional hot-compacted La(Fe,Si)13 material. This damage can affect the magnetocaloric performance. The approach in the present paper shows that the La(Fe,Si)13 particles stay intact due to the buffer-effect of the amorphous and ductile matrix at Tg. Therefore, the magnetocaloric properties of the composites are almost independent of the compaction pressures.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Krautz, Maria ; Funk, Alexander ; Skokov, Konstantin P. ; Gottschall, Tino ; Eckert, Jürgen ; Gutfleisch, Oliver ; Waske, Anja |
| Art des Eintrags: | Bibliographie |
| Titel: | A new type of La(Fe,Si)13-based magnetocaloric composite with amorphous metallic matrix |
| Sprache: | Englisch |
| Publikationsjahr: | 15 Januar 2015 |
| Verlag: | Elsevier Science Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scripta Materialia |
| Jahrgang/Volume einer Zeitschrift: | 95 |
| DOI: | 10.1016/j.scriptamat.2014.10.002 |
| Kurzbeschreibung (Abstract): | We report on novel magnetocaloric composites based on La(Fe,Si)13 particles in an amorphous metallic matrix. Hot compaction at the glass transition temperature, Tg, of the matrix prevents crack formation as commonly occurs in conventional hot-compacted La(Fe,Si)13 material. This damage can affect the magnetocaloric performance. The approach in the present paper shows that the La(Fe,Si)13 particles stay intact due to the buffer-effect of the amorphous and ductile matrix at Tg. Therefore, the magnetocaloric properties of the composites are almost independent of the compaction pressures. |
| Freie Schlagworte: | Metal matrix composites, Hot pressing, Three-dimensional tomography, Magnetocaloric effect |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 17 Nov 2014 10:04 |
| Letzte Änderung: | 17 Nov 2014 10:04 |
| PPN: | |
| Sponsoren: | The financial support of this joint publication by the German Research Foundation (DFG-Deutsche Forschungsgemeinschaft) within the priority program SPP 1599 is gratefully acknowledged., The authors are thankful to Norbert Mattern for providing the Pd-based amorphous material. |
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