Results 11 to 20 of about 930 (239)

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

Adv 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, Ahmed S, Althumayri MO, Guy M, Lugo DC, Ligler FS, Ligler GT, Oklu R, Kawahira H, McShane MJ, Kameoka J, Bova J, Ceylan Koydemir H.   +12 more
europepmc   +2 more sources

Investigation on ferromagnetic shape memory alloys [PDF]

Science 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, Z.H. Liu, X.F. Dai, S.Y. Yu, J.L. Chen, G.H. Wu   +5 more
openaire   +1 more source

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

Metals, 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

Proceedings, 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, Jan Zemen, Martin Veis, Daniel Král, Ladislav Straka, Oleg Heczko   +5 more
doaj   +1 more source

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

Metals, 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, Yoshiya Adachi, Takeshi Kanomata   +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

Metals, 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, Paweł Czaja, Robert Chulist, Anna Wójcik, Łukasz Żrodowski, Bartosz Morończyk, Rafał Wróblewski, Maciej Kowalczyk   +7 more
doaj   +1 more source

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

A lightweight shape-memory alloy with superior temperature-fluctuation resistance. [PDF]

Nature
Song Y, Xu S, Sato S, Lee I, Xu X, Omori T, Nagasako M, Kawasaki T, Kiyanagi R, Harjo S, Gong W, Grabec T, Stoklasová P, Kainuma R.   +13 more
europepmc   +2 more sources

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