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Étude portant sur un composite de thermoplastique chargé par des poudres magnétocaloriques.

Study on composite of thermoplastic loaded by magnetocaloric powders.

Numéro : pap. 227

Auteurs : LANZARINI J., GELIN J. C., BARRIERE T., et al.

Résumé

Magnetic refrigeration is an innovative and promising alternative to traditional refrigeration systems. However, the production of magnetocaloric components used as regenerators in magnetic refrigeration systems is a significant challenge. This work consists of developing an innovative process to obtain magnetocaloric components by powder extrusion moulding. A component containing up to 91.5 wt% magnetocaloric powder was obtained using a gas atomised magnetocaloric powder La-Fe-Si alloy. The powder is first mixed with a thermoplastic polymer to obtain a “ready to shape” feedstock. Then, the feedstock is either extruded to obtain the magnetocaloric component. Characterisations of the thermophysical properties are carried out during all stages of processing, from pure powder to injected parts. A study on the modification of the Curie temperature as a result of dehydrogenation was performed during each processing stages. Good processability was demonstrated for the highly loaded feedstock and conservation of the magnetocaloric properties during the process.

Documents disponibles

Format PDF

Pages : 4 p.

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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Détails

  • Titre original : Study on composite of thermoplastic loaded by magnetocaloric powders.
  • Identifiant de la fiche : 30019329
  • Langues : Anglais
  • Source : 7th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII). Proceedings: Turin, Italy, September 11-14, 2016.
  • Date d'édition : 11/09/2016
  • DOI : http://dx.doi.org/10.18462/iir.thermag.2016.0227

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