A new type of La(Fe, Si)13-based magnetocaloric composite with amorphous metallic matrix. (15th January 2015)

• Record Type: Journal Article
• Authors: Krautz, Maria; Funk, Alexander; Skokov, Konstantin P.; Gottschall, Tino; Eckert, Jürgen; Gutfleisch, Oliver; Waske, Anja
• Is Part Of: Scripta materialia. Volume 95(2015)
• Page Start: 50
• Page End: 53
• Publication Date: 2015-01-15
• Subjects: Metal matrix composites -- Hot pressing -- Three-dimensional tomography -- Magnetocaloric effect; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2014.10.002
• Languages: English
• ISSNs: 1359-6462

Abstract

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, T g, 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 T g . Therefore, the magnetocaloric properties of the composites are almost independent of the compaction pressures.