The underlying mechanisms responsible for the giant magnetic or mechanical field-induced-strains in ferromagnetic shape memory alloys are briefly discussed based on a phenomenological approach. The fundamental aspect is illustrated by the experimental results related to the lattice, mechanical and magnetic instabilities in the prototype Ni-Mn-Ga materials. A strong linear dependence of the magnetization upon the twinning deformation of martensite is considered for the sensor applications. An actuation capability on the microscale is found in the Ni-Mn-Ga/substrate thin film composites.

Ferromagnetic shape memory alloys: Scientific and applied aspects.

Besseghini S
2008

Abstract

The underlying mechanisms responsible for the giant magnetic or mechanical field-induced-strains in ferromagnetic shape memory alloys are briefly discussed based on a phenomenological approach. The fundamental aspect is illustrated by the experimental results related to the lattice, mechanical and magnetic instabilities in the prototype Ni-Mn-Ga materials. A strong linear dependence of the magnetization upon the twinning deformation of martensite is considered for the sensor applications. An actuation capability on the microscale is found in the Ni-Mn-Ga/substrate thin film composites.
2008
Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia - ICMATE
File in questo prodotto:
File Dimensione Formato  
prod_22160-doc_39230.pdf

non disponibili

Descrizione: Ferromagnetic shape memory alloys: Scientific and applied aspects
Dimensione 209.33 kB
Formato Adobe PDF
209.33 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/22079
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 66
  • ???jsp.display-item.citation.isi??? 60
social impact