Results 71 to 80 of about 31,320 (288)

Analysis of the Composite Transmission of Magnetorheological Fluids and Shape Memory Alloy

open access: yesJixie chuandong, 2015
The magnetorheological effect of magnetorheological fluid reduce under a high temperature condition,which causes so many problems like the uncontrollability of the variation of shearing stress,and even failure of the transmission device.Based on the ...
Chen Song   +3 more
doaj  

An investigation on the magnetic entropy change of Ni38Co12Mn25V25

open access: yesResults in Surfaces and Interfaces
Ni-Mn based Heusler alloys are interesting class of ferromagnetic materials that performs well in the field of spintronics, shape memory alloys and solid-state refrigeration. In this work, the phase stability, magnetic properties and critical behavior of
Kowsalya Murugan   +2 more
doaj   +1 more source

Design and performance analysis of hydraulic switching valve driven by magnetic shape memory alloy

open access: yesAdvances in Mechanical Engineering, 2021
In this paper, the hydraulic switching valve is designed and its dynamic performance is investigated through proposing a fast response actuator with magnetic shape memory alloy (MSMA) to drive the valve. MSMA actuator with spring return is designed and a
Hu Shi   +3 more
doaj   +1 more source

Advanced materials for solid-state refrigeration

open access: yes, 2013
Recent progress on caloric effects are reviewed. The application of external stimuli such as magnetic field, hydrostatic pressure, uniaxial stress and electric field give rise respectively to magnetocaloric, barocaloric, elastocaloric and electrocaloric ...
Acet, Mehmet   +2 more
core   +1 more source

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus   +5 more
wiley   +1 more source

Research on Conical Magnetorheological and Shape Memory Alloy Composite Transmission Performance

open access: yesJixie chuandong, 2019
In view of the disadvantage of magnetorheological fluid (MRF) performance degradation at high temperature, a conical MRF and shape memory alloy (SMA) hybrid transmission method is proposed.
Xi Wang, Jin Huang, Yong Xie
doaj  

Local atomic arrangement and martensitic transformation in Ni$_{50}$Mn$_{35}$In$_{15}$: An EXAFS Study

open access: yes, 2007
Heusler alloys that undergo martensitic transformation in ferromagnetic state are of increasing scientific and technological interest. These alloys show large magnetic field induced strains upon martensitic phase change thus making it a potential ...
Bhobe P A   +6 more
core   +1 more source

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

open access: yesAdvanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das   +8 more
wiley   +1 more source

Effect of Isothermal Ageing on Structural and Magnetic Properties of Ni47Mn40Sn13 Ferromagnetic Shape Memory Alloy

open access: yesJournal of Advanced Materials in Engineering, 2015
In this investigation, Ni47Mn40Sn13 ferromagnetic shape memory alloy was prepared by mechanical alloying. The metal powders were ball milled in argon atmosphere for 20 hours.
A. Ghotbi varzaneh   +3 more
doaj   +2 more sources

Strain and order-parameter coupling in Ni-Mn-Ga Heusler alloys from resonant ultrasound spectroscopy

open access: yes, 2018
Resonant ultrasound spectroscopy and magnetic susceptibility experiments have been used to characterize strain coupling phenomena associated with structural and magnetic properties of the shape-memory Heusler alloy series Ni$_{50+x}$Mn$_{25-x}$Ga$_{25}$ (
Born, N. -O.   +5 more
core   +1 more source

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