Results 11 to 20 of about 103,363 (306)

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

Shape memory effect of polymeric composite materials filled with NiMnSbB shape memory alloy for textile materials

open access: yesMaterials Research Express, 2020
The aim of the study was to obtain a smart textile material with shape memory alloys. NiMn-based shape memory alloy was produced by arc melting system for this purpose.
Esra Topel-Zeren   +2 more
doaj   +1 more source

Deformation mechanisms in a TiNi shape memory alloy during cyclic loading [PDF]

open access: yes, 2012
The deformation mechanisms governing the cyclic stress-strain behaviour of a TiNi shape memory alloy were investigated in this work. To understand the development of these mechanisms during cyclic loading, three low-cycle fatigue tests were performed and
Billota, Giovambattista   +2 more
core   +3 more sources

Feedforward-feedback hybrid control for magnetic shape memory alloy actuators based on the Krasnosel'skii-Pokrovskii model. [PDF]

open access: yesPLoS ONE, 2014
As a new type of smart material, magnetic shape memory alloy has the advantages of a fast response frequency and outstanding strain capability in the field of microdrive and microposition actuators.
Miaolei Zhou, Qi Zhang, Jingyuan Wang
doaj   +1 more source

Shape memory alloy based smart landing gear for an airship [PDF]

open access: yes, 2007
The design and development of a shape memory alloy based smart landing gear for aerospace vehicles is based on a13; novel design approach. The smart landing gear comprises a landing beam, an arch, and a superelastic nickeltitanium shape memory alloy ...
Dayananda, GN   +2 more
core   +1 more source

NiTi shape-memory transformations: minimum-energy pathways between austenite, martensites, and kinetically-limited intermediate states [PDF]

open access: yes, 2014
NiTi is the most used shape-memory alloy, nonetheless, a lack of understanding remains regarding the associated structures and transitions, including their barriers.
Johnson, Duane   +3 more
core   +4 more sources

Coupled thermomechanical dynamics of phase transitions in shape memory alloys and related hysteresis phenomena [PDF]

open access: yes, 2001
In this paper the nonlinear dynamics of shape memory alloy phase transformations is studied with thermomechanical models based on coupled systems of partial differential equations by using computer algebra tools.
Melnik, R. V. N.   +2 more
core   +1 more source

Identification and Control of Shape Memory Alloys

open access: yesMeasurement + Control, 2013
In recent years, shape memory alloys have been used widely as actuators in microelectromechanical systems. Shape memory alloys have non-linear hysteresis behaviours and parameter uncertainties that include electrical properties such as resistance.
Z Ghasemi   +3 more
doaj   +1 more source

Selective RF wireless control of integrated bulk-micromachined shape-memory-alloy actuators and its microfluidic application [PDF]

open access: yes, 2011
This paper reports wireless microfluidic control enabled by selective operation of multiple bulk-micromachined shape-memory-alloy actuators using radiofrequency external magnetic fields.
Mohamed Ali, Mohamed Sultan   +1 more
core   +1 more source

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

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