Journal ArticleDOI
Large magnetic‐field‐induced strains in Ni2MnGa single crystals
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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.Abstract:
Strains of nearly 0.2% have been induced along [001] in unstressed crystals of Ni2MnGa with magnetic fields of 8 kOe applied at 265 K. These stains are associated with the superelastic motion of twin boundaries in the martensitic phase that is stable below about 274 K.read more
Citations
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Journal ArticleDOI
Entropy change and effect of magnetic field on martensitic transformation in a metamagnetic Ni–Co–Mn–In shape memory alloy
TL;DR: In this article, the authors studied the entropy change and the shift of the martensitic transformation temperatures with magnetic field in samples of a polycrystalline Ni-Co-Mn-In alloy having different degrees of long-range atomic order due to different heat treatments.
Journal ArticleDOI
Shape memory and ferromagnetic shape memory effects in single-crystal Ni2MnGa thin films
Jinming Dong,J. Q. Xie,Jun Lu,Jun Lu,Christoph Adelmann,Chris Palmstrom,Jun Cui,Jun Cui,Q. Pan,Q. Pan,T. W. Shield,Richard D. James,Stuart McKernan +12 more
TL;DR: In this paper, the structure of the Ni2MnGa and Ni2mn1.8 thin films has been characterized by molecular beam epitaxy on GaAs (001) substrates with Sc0.3Er0.7As interlayers.
Journal ArticleDOI
On the stress-assisted magnetic-field-induced phase transformation in Ni2MnGa ferromagnetic shape memory alloys
Haluk E. Karaca,Ibrahim Karaman,B. Basaran,Dimitris C. Lagoudas,Y.I. Chumlyakov,Hans Jürgen Maier +5 more
TL;DR: In this paper, the effect of magnetic field on the martensitic phase transformation in Ni2MnGa single crystals was investigated under compression and reversible and one-way stress-assisted field-induced phase transformations were observed under low field magnitudes.
Book ChapterDOI
Magnetic-Field-Induced Effects in Martensitic Heusler-Based Magnetic Shape Memory Alloys
TL;DR: The magnetic field triggers the changes of shape caused by either inducing the structural transition or rearranging the martensite variants as discussed by the authors, which is the best known functionalities of magnetic shape memory alloys.
Journal ArticleDOI
Direct current electrical and microwave properties of polymer-multiwalled carbon nanotubes composites
TL;DR: In this paper, effective direct current (dc) resistivities and alternating current (ac) complex permittivity measurements were carried out on two series of polymer/multiwalled (MW) carbon nanotube composite samples as function of the CNTs volume fraction and temperature.
References
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Ferromagnetic materials
TL;DR: In this paper, the authors restrict their attention to the ferrites and a few other closely related materials, which are more closely related to anti-ferromagnetic substances than they are to ferromagnetics in which the magnetization results from the parallel alignment of all the magnetic moments present.