Virgin effect in spheres of LaFeSi-based alloys
Source abstract
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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Magnetic Properties of Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Energy Conversion and Storage, Technical University of Denmark 1 , Fysikvej 310, DK 2800 Kgs. Lyngby, Denmark
Section of Thermal Energy, Department of Mechanical Engineering, Technical University of Denmark 2 , Koppels Alle 403, DK 2800, Kgs. Lyngby, Denmark
Funding
Horizon 2020 Framework Program
References (28)
Show source-provided references
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