Conference Proceedings

Magnetic shape memory - Polymer hybrids

I Aaltio, F Nilsén, J Lehtonen, Y Ge, S Spoljaric, J Seppälä, SP Hannula

Materials Science Forum | Published : 2017

DOI: 10.4028/www.scientific.net/MSF.879.133

Abstract

Martensitic Ni-Mn-Ga based alloys are known for the Magnetic Shape Memory (MSM) effect, which upon application of an external magnetic field can generate a strain up to 12 % depending on the microstructure of the martensite. The MSM effect occurs by rearrangement of the martensite variants, which is most advantageous in single crystals. Single crystals are, however, rather tedious to produce and there has been attempts to achieve MSM effect in polycrystals. However, in polycrystals the magnetic field induced shape change remains low as compared to single crystals. As an alternative to the former, hybrid MSM materials offer several advantages. When compared to single crystals, hybrids have ex..

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University of Melbourne Researchers

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