Journal ArticleDOI
Giant magnetic-field-induced strain in NiMnGa seven-layered martensitic phase
Reads0
Chats0
TLDR
In this paper, a magnetic-field-induced strain of about 9.5% was observed at ambient temperature in a magnetic field of less than 1 T in NiMnGa orthorhombic seven-layered martensitic phase.Abstract:
Giant magnetic-field-induced strain of about 9.5% was observed at ambient temperature in a magnetic field of less than 1 T in NiMnGa orthorhombic seven-layered martensitic phase. The strain proved to be caused by magnetic-field-controlled twin boundary motion. According to an analysis of x-ray diffraction data, the crystal structure of this phase is nearly orthorhombic, having lattice parameters a=0.619 nm, b=0.580 nm, and c=0.553 nm (in cubic parent phase coordinates) at ambient temperature. Seven-layer shuffling-type modulation along the (110)[110]p system was recorded. The results of mechanical tests and magnetic anisotropy property measurements are also reported.read more
Citations
More filters
Journal ArticleDOI
Structural, magnetic, and magnetotransport studies in bulk Ni55.2Mn18.1Ga26.7 alloy
TL;DR: In this article, structural, magnetic, and transport properties have been investigated in off-stochiometric bulk Ni552Mn181Ga267 alloy, and the alloy undergoes an austenite-martensite phase transition in ferromagnetic state at 264 K.
Journal ArticleDOI
Pd–In–Fe shape memory alloy
H. Ishikawa,Yuji Sutou,Toshihiro Omori,Katsunari Oikawa,Kiyohito Ishida,Akira Yoshikawa,Rie Y. Umetsu,Ryosuke Kainuma +7 more
TL;DR: Martensitic, magnetic transformations, and crystal structures in Pd-In-Fe alloys were investigated in this article, where it was confirmed that some Pd -In-F alloys show martensitic transformation from a Heusler-type (L21) ordered bcc phase to a 2M-type structure and that an almost perfect superelastic effect accompanied the transformation can be obtained.
Journal ArticleDOI
Structural, thermal, and electronic properties of Fe 2 V Si 1 − x Al x
TL;DR: In this article, the influence of local environment on the structural and electronic properties of Heusler alloys was investigated by measuring electrical resistivity, thermal conductivity, Seebeck coefficient, and heat capacity.
Journal ArticleDOI
Determination of the orientation relationship between austenite and 5M modulated martensite in Ni–Mn–Ga alloys
TL;DR: In this paper, the microstructural and crystallographic characteristics of 5M martensite in an Ni50Mn28Ga22 alloy were investigated by electron backscatter diffraction (EBSD) analysis.
Journal ArticleDOI
Strain mediated coupling in magnetron sputtered multiferroic PZT/Ni-Mn-In/Si thin film heterostructure
TL;DR: The strain mediated electrical and magnetic properties were investigated in PZT/Ni-Mn-In heterostructure deposited on Si (100) by dc/rf magnetron sputtering as mentioned in this paper.
References
More filters
Journal ArticleDOI
Large magnetic‐field‐induced strains in Ni2MnGa single crystals
TL;DR: In this paper, the superelastic motion of twin boundaries in the martensitic phase of Ni2MnGa with magnetic fields of 8 kOe applied at 265 K was found to be associated with the staining.
Journal ArticleDOI
6% magnetic-field-induced strain by twin-boundary motion in ferromagnetic Ni–Mn–Ga
TL;DR: In this paper, a simple model accounts quantitatively for the dependence of strain on magnetic field and external stress using as input parameters only measured quantities, and the strain versus field curves exhibit appreciable hysteresis associated with the motion of the twin boundaries.
Journal ArticleDOI
Magnetostriction of martensite
Richard D. James,Manfred Wuttig +1 more
TL;DR: In this article, a general strategy for inducing magnetostriction in ferromagnetic martensitic materials is described, and an analysis of domain redistribution caused by a magnetic field is given.
Journal ArticleDOI
Model for strain and magnetization in magnetic shape-memory alloys
TL;DR: In this paper, a simple phenomenological model for the magnetization process and field-induced strain by twin-boundary and phaseboundary motion is proposed for both the strong and weak anisotropy cases.
Journal ArticleDOI
Crystal structure of martensitic phases in Ni–Mn–Ga shape memory alloys
TL;DR: The crystal structures of the different martensitic phases observed in a wide variety of Ni-Mn-Ga alloy compositions have been studied in detail as discussed by the authors, and two approaches taken from the literature are analysed and discussed.