Results 21 to 30 of about 12,483,395 (301)

Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]

open access: yes, 2010
Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Kraft, Arno,   +21 more
core   +2 more sources

A method to determine the accuracy of shape setting thin, spirally shaped Nitinol wires

open access: yesCurrent Directions in Biomedical Engineering, 2021
Electric stimulation of the auditory nerve using a cochlear implant (CI) is presumed to be superior when the electrode array (EA) is placed close to the inner wall of the cochlea. Nitinol is investigated as an actuator that enables an intracochlear shape
Ehmann Tim   +3 more
doaj   +1 more source

Shape Memory Effect in Micro-Sized Shape Memory Polymer Composite Chains

open access: yesApplied Sciences, 2019
Since the shape memory effect (SME) has been confirmed in micron and submicron sized polyurethane (PU) shape memory polymer (SMP), it might be used in novel micro/nano devices even for surgery/operation inside a single cell.
Xin Lan, Weimin Huang, Jinsong Leng
doaj   +1 more source

High performance shape memory polyurethane synthesized with high molecular weight polyol as the soft segment [PDF]

open access: yes, 2012
Shape memory polyurethanes (SMPUs) are typically synthesized using polyols of low molecular weight (MW~2,000 g/mol) as it is believed that the high density of cross-links in these low molecular weight polyols are essential for high mechanical strength ...
Miraftab, Mohsen   +15 more
core   +1 more source

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

Epoxy/Polycaprolactone Systems with Triple-Shape Memory Effect: Electrospun Nanoweb with and without Graphene Versus Co-Continuous Morphology [PDF]

open access: yes, 2013
Triple-shape memory epoxy (EP)/polycaprolactone (PCL) systems (PCL content: 23 wt %) with different structures (PCL nanoweb embedded in EP matrix and EP/PCL with co-continuous phase structure) were produced.
Márta Fejős   +5 more
core   +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

Shape memory performance of asymmetrically reinforced epoxy/carbon fibre fabric composites in flexure [PDF]

open access: yes, 2013
In this study asymmetrically reinforced epoxy (EP)/carbon fibre (CF) fabric composites were prepared and their shape memory properties were quantified in both unconstrained and fully constrained flexural tests performed in a dynamic mechanical analyser ...
Fejős, M., J. Karger-Kocsis, M. Fejos
core   +1 more source

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