Results 11 to 20 of about 9,463 (269)

Smart Catheters for Diagnosis, Monitoring, and Therapy. [PDF]

open access: yesAdv Healthc Mater
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Tarman AY   +12 more
europepmc   +2 more sources

Investigation on ferromagnetic shape memory alloys [PDF]

open access: yesScience and Technology of Advanced Materials, 2005
Ferromagnetic shape memory alloys, exhibiting large recoverable strain and rapid frequency response, appear to be promising shape memory actuator material. These materials exhibit large shape memory effect associating with martensitic transformation, and magnetic-field-induced strain in the martensite state.
G.D. Liu   +5 more
openaire   +1 more source

Enhanced Reversible Magnetic-Field-Induced Strain in Ni-Mn-Ga Alloy

open access: yesMetals, 2021
A phase-field model was developed to simulate the ferromagnetic domain structure and martensite variant microstructure of Ni-Mn-Ga shape-memory alloy.
Pingping Wu, Yongfeng Liang
doaj   +1 more source

Electron Localizations in Alloy Exhibiting Nanotwinning

open access: yesProceedings, 2019
Ni2MnGa is a ferromagnetic shape memory alloy in which a large spontaneous deformation up to 12% has been observed after application of an external magnetic field [1]. [...]
Martin Zelený   +5 more
doaj   +1 more source

Theoretical prediction and experimental study of a ferromagnetic shape memory alloy: Ga_2MnNi [PDF]

open access: yes, 2008
We predict the existence of a new ferromagnetic shape memory alloy Ga_2MnNi using density functional theory. The martensitic start temperature (T_M) is found to be approximately proportional to the stabilization energy of the martensitic phase ...
A. K. Panda   +11 more
core   +3 more sources

Magnetoresistance behavior of a ferromagnetic shape memory alloy: Ni_1.75Mn_1.25Ga [PDF]

open access: yes, 2008
A negative-positive-negative switching behavior of magnetoresistance (MR) with temperature is observed in a ferromagnetic shape memory alloy Ni_1.75Mn_1.25Ga. In the austenitic phase between 300 and 120 K, MR is negative due to s-d scattering. Curiously,
Ahuja, B. L.   +9 more
core   +1 more source

Magneto-Structural Properties of Ni2MnGa Ferromagnetic Shape Memory Alloy in Magnetic Fields

open access: yesMetals, 2013
The purpose of this review was to investigate the correlation between magnetism and crystallographic structures as it relates to the martensite transformation of Ni2MnGa type alloys, which undergo martensite transformation below the Curie temperature. In
Takuo Sakon   +2 more
doaj   +1 more source

Microstructure and Magnetic Properties of Selected Laser Melted Ni-Mn-Ga and Ni-Mn-Ga-Fe Powders Derived from as Melt-Spun Ribbons Precursors

open access: yesMetals, 2021
Selective Laser Melting was successfully used as a fabrication method to produce Ni-Mn-Ga and Ni-Mn-Ga-Fe ferromagnetic shape memory alloys. The starting material in a powder form with an average particle size of about 17.6 µm was produced by milling of ...
Wojciech Maziarz   +7 more
doaj   +1 more source

Magnetic superelasticity and inverse magnetocaloric effect in Ni-Mn-In [PDF]

open access: yes, 2007
Applying a magnetic field to a ferromagnetic Ni$_{50}$Mn$_{34}$In$_{16}$ alloy in the martensitic state induces a structural phase transition to the austenitic state.
Antoni Planes   +9 more
core   +6 more sources

Magnetocaloric Effect Caused by Paramagnetic Austenite–Ferromagnetic Martensite Phase Transformation [PDF]

open access: yes, 2018
In the present work, the magnetization of Ni50Mn17.5Ga25Cu7.5 alloy undergoing the first-order phase transition from paramagnetic austenite to ferromagnetic martensite was measured to evaluate the magnetic-field-induced entropy change (MFIEC) and ...
Cesari, Eduard   +4 more
core   +2 more sources

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