Results 21 to 30 of about 9,463 (269)

Autonomous generator based on Ni-Mn-Ga microactuator as a frequency selective element

EPJ Web of Conferences, 2013
In this work, we suggest the temperature-induced resistivity change at the martensitic transformation in the Ni-Mn-Ga ferromagnetic shape memory alloy as a driving mechanism enabling periodic signal generation. We demonstrated its practical importance by
Barandiaran J.M., Skirta Y. B., Krupa M. M., Ohtsuka M., Chernenko V.A.   +4 more
doaj   +1 more source

Martensitic Transition and Superelasticity of Ordered Heat Treatment Ni-Mn-Ga-Fe Microwires

Metals, 2022
The preparation of Ni-Mn-Ga and Ni-Mn-Ga-Fe master alloy ingots and microwires was completed by high vacuum electric furnace melt melting furnace and melt drawing liquid forming equipment, and the lattice dislocations and defects formed inside the ...
Yanfen Liu, Zirui Lang, Hongxian Shen, Jingshun Liu, Jianfei Sun   +4 more
doaj   +1 more source

Manipulation of the Martensitic Transformation and Exchange Bias Effect in the Ni₄₅Co₅Mn₃₇In₁₃ Ferromagnetic Shape Memory Alloy Films

Magnetochemistry, 2023
The martensitic phase transition and exchange bias effect of the Ni-Mn-based ferromagnetic shape memory alloys (FSMAs) Ni45Co5Mn37In13 (Ni-Co-Mn-In) films are investigated in this paper.
Jiahong Wen, Bochu Yang, Zhichao Dong, Yaxin Yan, Xiaoyu Zhao   +4 more
doaj   +1 more source

Design of Ferromagnetic Shape Memory Alloy Composites [PDF]

Journal of Composite Materials, 2004
Ferromagnetic shape memory alloy (FSMA) composites composed of a ferromagnetic material and a shape memory alloy (SMA) are key material systems for fast-responsive and compact actuators. The function of ferromagnetic material is to induce magnetic force which is then used to induce the stress in the SMA, resulting in the stress-induced marten site ...
Masahiro Kusaka, Minoru Taya
openaire   +1 more source

Crystallographic insights into diamond-shaped 7M martensite in Ni–Mn–Ga ferromagnetic shape-memory alloys

IUCrJ, 2019
For Heusler-type Ni–Mn–Ga ferromagnetic shape-memory alloys, the configuration of the martensite variants is a decisive factor in achieving a large magnetic shape-memory effect through field-induced variant reorientation.
Zong-Bin Li, Bo Yang, Yu-Dong Zhang, Claude Esling, Xiang Zhao, Liang Zuo   +5 more
doaj   +1 more source

Mapping the magnetocaloric effect at the microscale on a ferromagnetic shape memory alloy with infrared thermography

JPhys Materials, 2023
An innovative study of the magnetocaloric effect (MCE) was performed by mapping the effect based on direct measurements of the temperature change during magnetic field cycles with microscopic resolution (85 μ m) on a Co-doped Ni–Mn–Ga bulk sample using ...
Maria J Pereira, Tiago Santos, Rafael Correia, João S Amaral, Vitor S Amaral, Simone Fabbrici, Franca Albertini   +6 more
doaj   +1 more source

Investigation of magnetic field-induced phase transition in Ni50Mn28Ga22, a ferromagnetic shape memory alloy [PDF]

AIP Advances
Ferromagnetic shape memory alloys (FSMAs) exhibit magnetic-field-induced strain (MFIS) through a reversible martensitic transformation. Among these, Nickel–Manganese–Gallium (Ni–Mn-Ga) alloys have drawn significant attention due to their large MFIS (up ...
Pavan Chaitanya, Samantha E. Smith, Margo Staruch, Ravi L. Hadimani   +3 more
doaj   +1 more source

Direct Measure of Giant Magnetocaloric Entropy Contributions in Ni-Mn-In [PDF]

, 2016
Off-stoichiometric alloys based on Ni 2 MnIn have drawn attention due to the coupled first order magnetic and structural transformations, and the large magnetocaloric entropy associated with the transformations. Here we describe calorimetric and magnetic
Bruno, Nickolaus M., Chen, Jing-Han, Huang, Yujin, Karaman, Ibrahim, Li, Jianguo, Ross Jr, Joseph H.   +5 more
core   +2 more sources

Microstructural Model of Magnetic and Deformation Behavior of Single Crystals and Polycrystals of Ferromagnetic Shape Memory Alloy

Magnetochemistry, 2023
In this article, a microstructural model of the Heusler alloy with the shape memory effect caused by the application of an external magnetic field is constructed.
Anatoli A. Rogovoy, Olga S. Stolbova
doaj   +1 more source

Preferred site occupation and magnetic properties of Ni-Fe-Ga-Co ferromagnetic shape memory alloys by first-principles calculations

AIP Advances, 2016
First-principles calculations have been used to investigate the effects of Co addition on the preferred site occupation and magnetic properties of Ni-Fe-Ga-Co ferromagnetic shape memory alloys.
Jing Bai, Yue Chen, Ze Li, Pan Jiang, Pu Wei, Xiang Zhao   +5 more
doaj   +1 more source