Title :
Structure and phase transformation of ferromagnetic shape memory alloy Ni/sub 49/Mn/sub 30/Ga/sub 21/ fine particles prepared by spark erosion
Author :
Tang, Y.J. ; Smith, D.J. ; Spada, F.E. ; Harper, H. ; Berkowitz, A.E.
Author_Institution :
Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper explained about the structure and martensitic transformation of Ni-Mn-Ga alloys. Temperature dependence of the magnetization curves are obtained. XRD was studied for sparked powder and annealed powder. SEM results are also discussed.
Keywords :
X-ray diffraction; ferromagnetic materials; gallium alloys; magnetic particles; magnetisation; manganese alloys; martensitic transformations; nickel alloys; powders; scanning electron microscopy; shape memory effects; Ni/sub 49/Mn/sub 30/Ga/sub 21/; NiMnGa alloys; SEM; XRD; annealing; ferromagnetic materials; magnetization curves; martensitic structure; martensitic transformation; phase transformation; shape memory alloy; spark erosion; sparked powder; Annealing; Capacitive sensors; Crystalline materials; Iron alloys; Polymers; Powders; Shape memory alloys; Sparks; Temperature measurement; X-ray scattering;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230417
