Magnetic and magnetoelastic properties of melt-spun Ni-Mn-Ga

Author

Dearing, N. ; Jenner, A.G.

Author_Institution

Dept. of Phys., Hull Univ., UK

Volume

42

Issue

1

fYear

2006

Firstpage

78

Lastpage

80

Abstract

We have fabricated single roller melt-spun ribbons of the ferromagnetic shape memory alloy NiMnGa. The ribbons´ magnetic and magnetoelastic responses and corresponding microstructure in the as-spun and annealed states were analyzed by a combination of vibrating sample magnetometry, X-ray diffraction, differential scanning calorimetery, capacitance dilatometry, and optical microscopy. The transformation strain in the annealed ribbons showed a dependence on the applied field of 600 ppm, whereas the as-spun samples did not display any field-induced strain.

Keywords

X-ray diffraction; differential scanning calorimetry; ferromagnetic materials; gallium alloys; magnesium alloys; magnetoelastic effects; nickel alloys; optical microscopy; NiMnGa; X-ray diffraction; annealed ribbons; capacitance dilatometry; differential scanning calorimetery; ferromagnetic shape memory alloy NiMnGa; magnetic properties; magnetoelastic properties; magnetometry; melt-spun ribbon; optical microscopy; transformation strain; Annealing; Capacitance; Magnetic analysis; Magnetic field induced strain; Magnetic properties; Microstructure; Optical diffraction; Optical microscopy; Shape memory alloys; X-ray diffraction; Ferromagnetic shape memory; NiMnGa; melt spun;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.860204

Filename

1561504