Results 31 to 40 of about 796,752 (353)

Magnetic shape-memory effects in a crystal [PDF]

open access: yesNature, 2002
Magnetic fields affect the motion of electrons and the orientation of spins in solids, but are thought to have little impact on crystal structure, particularly in compounds with low magnetic susceptibility, such as antiferromagnets. Here we describe an unexpected magnetic effect on crystal shape, in which the direction of the crystal's axes are swapped
A N, Lavrov, Seiki, Komiya, Yoichi, Ando
openaire   +2 more sources

Two-Way and Multiple-Way Shape Memory Polymers for Soft Robotics: An Overview

open access: yesActuators, 2020
Shape memory polymers (SMPs) are smart materials capable of changing their shapes in a predefined manner under a proper applied stimulus and have gained considerable interest in several application fields.
Giulia Scalet
doaj   +1 more source

Development of High-Entropy Shape-Memory Alloys: A Review

open access: yesMetals, 2023
High-entropy shape-memory alloys (HESMAs) exhibit unique properties, including high yield strength, a wide temperature range of phase transformation, and excellent thermal cycling stability, among others. Hence, they have broad prospects for research and
Guoqiang Fu   +7 more
doaj   +1 more source

Three-way actuation of shape memory composite

open access: yesArchives of Mechanics, 2011
The SMC belt composed of two kinds of SMAs with different phase transformation temperatures and SMP, was fabricated and the three-way (reciprocating) movement and recovery force in bending actuation were investigated.
H. Tobushi   +4 more
doaj   +1 more source

The ultrahigh functional response of CuAlMnNb shape memory alloy by selective laser melting

open access: yesJournal of Materials Research and Technology, 2022
In this study, the Cu-11.85Al-3.88Mn-1.6Nb (wt.%) shape memory alloy with low cost and a highly functional response was manufactured by selective laser melting(SLM).
Xiaoying Xi   +4 more
doaj   +1 more source

Investigation of fibre reinforced shape memory polymer composites for structural components [PDF]

open access: yes, 2023
Shape memory polymers (SMPs), comprising a distinctive shape memorizing capability, is a significant and evolving branch of smart polymers. Shape memory polymer composites (SMPCs) were developed by reinforcing the SMP matrix to improve the inherently ...
Emmanuel Kotikawattege Don, Chris
core   +1 more source

Phase Transformation of Anisotropic Shape Memory Alloys: Theory and Validation in Superelasticity [PDF]

open access: yes, 2015
In the present study, a new transformation criterion that includes the effect of tension–compression asymmetry and texture-induced anisotropy is proposed and combined with a thermodynamical model to describe the thermomechanical behavior of ...
CHEMISKY, Yves   +5 more
core   +1 more source

Triple-shape memory effect in 3D-printed polymers

open access: yeseXPRESS Polymer Letters, 2020
A triple-shape memory effect represents that polymers can memorize two temporary shapes and show a subsequent recovery from the second temporary shape to the first temporary shape and further to the permanent shape with heating, which provides more ...
L. Dai, J. Song, S. Qu, R. Xiao
doaj   +1 more source

ECAE processed NiTi shape memory alloy [PDF]

open access: yesMaterials Research, 2014
The current work evaluated the microstructures and martensitic transformation temperatures of NiTi shape memory alloy (SMA) deformed by equal channel angular extrusion (ECAE).
Fernanda Lídia Carvalho Lucas   +4 more
doaj   +1 more source

Shape-memory effects in molecular crystals [PDF]

open access: yesNature Communications, 2019
AbstractMolecular crystals can be bent elastically by expansion or plastically by delamination into slabs that glide along slip planes. Here we report that upon bending, terephthalic acid crystals can undergo a mechanically induced phase transition without delamination and their overall crystal integrity is retained.
Ejaz Ahmed   +3 more
openaire   +4 more sources

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