Ferromagnetic shape memory alloys: where might they be useful?

Author

O´Handley, R.C. ; Henry, C.P. ; Marioni, M. ; Richard, M. ; Feuchtwanger, J. ; Peterson, B. ; Bono, D. ; Huang, J.K. ; Paul, D.I. ; Allen, Stuart M.

Author_Institution

Massachusetts Inst. of Technol., Cambridge, MA, USA

fYear

2003

fDate

March 30 2003-April 3 2003

Abstract

In this paper, ferromagnetic shape memory alloys, most notably NiMnGa have received considerable attention because of the remarkable 6% to 10% field induced strains they have exhibited at room temperature in the magnetic fields of order 0.5 T. In order to address this question, the important technical properties that these materials exhibit will be reviewed and compared with those of competing active materials.

Keywords

ferromagnetic materials; gallium alloys; internal stresses; magnetic anisotropy; magnetic hysteresis; magnetostriction; manganese alloys; nickel alloys; shape memory effects; 0.5 T; 293 to 298 K; NiMnGa; NiMnGa alloys; ferromagnetic shape memory alloys; field induced strains; magnetic fields; room temperature; technical properties; Appropriate technology; Capacitive sensors; Iron alloys; Magnetic anisotropy; Magnetic field induced strain; Magnetic materials; Occupational stress; Perpendicular magnetic anisotropy; Piezoelectric materials; Shape memory alloys;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2003. INTERMAG 2003. IEEE International

Conference_Location

Boston, MA, USA

Print_ISBN

0-7803-7647-1

Type

conf

DOI

10.1109/INTMAG.2003.1230413

Filename

1230413