Virgin effect in spheres of LaFeSi-based alloys

Christian R. H. Bahl*, Jierong Liang, Marvin Masche, Kaspar K. Nielsen, Kurt Engelbrecht

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

A virgin phase transition is observed in spherical particles of the industrially relevant magnetocaloric material La(Fe,Mn,Si)13Hy. Upon initial cooling, the phase transition is observed 2–3 K below the heating transition on all subsequent cooling and heating transitions. This virgin transition has been studied using differential scanning calorimetry and vibrating sample magnetometry. Incremental measurements show not only how the phase transition can be carefully approached but also that the initial full transformation requires cooling of about 6 K below the observed phase transformation. No signs of structural damage due to the thermal cycling were observed, neither macroscopically or by scanning electron microscopy.
Original languageEnglish
Article number065216
JournalA I P Advances
Volume12
Issue number6
Number of pages7
ISSN2158-3226
DOIs
Publication statusPublished - 2022

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