Results 271 to 280 of about 796,752 (353)

Effect of Nd addition on the microstructure, mechanical properties, shape memory effect and corrosion behaviour of Cu–Al–Ni high-temperature shape memory alloys

Journal of Alloys and Compounds, 2020
The effects of rare earth element Nd on the microstructure, mechanical, shape memory properties and corrosion behaviour of Cu-13.0Al-4.0Ni-xNd (wt.%) high-temperature shape memory alloys were investigated in this paper. It was observed that the grains in
Xin Zhang, T. Cui, Qing-suo Liu, Z. Dong, C. Man   +4 more
semanticscholar   +1 more source

Elasticity and Shape Memory Effect of Shape Memory Fabrics

Textile Research Journal, 2008
An attempt has been made in this paper to investigate the distinction between shape memory effect and the wrinkle recovery property of cotton fabrics in terms of temperature sensitivity and elasticity. Elasticity is an inherent characteristic of typical wrinkle-free fabrics, because they are suppose to recover after the release of ...
null Xiaoxia Liu, null Jinlian Hu, K. Murugesh Babu, null Shanyuan Wang   +3 more
openaire   +1 more source

Epoxy-vitrimer composites based on exchangeable aromatic disulfide bonds: Reprocessibility, adhesive, multi-shape memory effect

, 2020
Vitrimers are a class of polymers integrating the advantage of thermosets and thermoplastics. The dynamic crosslinking networks endow vitrimers with interesting rheological behavior and functional applications, such as self-healing, thermally plasticity ...
Fance Ji, Xiangdong Liu, Dekun Sheng, Yuming Yang   +3 more
semanticscholar   +1 more source

Optimization of the shape memory effect in shape memory polymers

Journal of Polymer Science Part A: Polymer Chemistry, 2011
AbstractIn this article, we show that given a thermoresponsive shape memory polymer, it is possible to alter a number of its properties, such as the recovery temperature, shape fixity ratio, maximum recovery stress, and final recovery stress (and even a right combination of some of them, e.g., the maximum recovery stress and final recovery stress ...
L. Sun, W. M. Huang, C. C. Wang, Y. Zhao, Z. Ding, H. Purnawali   +5 more
openaire   +1 more source

Modeling the shape memory effect of shape memory polymer

SPIE Proceedings, 2009
Dynamic mechanical analysis (DMA) tests are conducted on the styrene-based shape memory polymer (SMP) to investigate its state transition behaviors. Tensile tests at various constant temperatures are carried out to reveal the stressstrain- temperature relationship of the styrene-based SMP.
Bo Zhou, Yanju Liu, Zhenqing Wang, Jin-Song Leng   +3 more
openaire   +1 more source

Multi-shape memory effect in shape memory polymer composites

Materials Letters, 2012
In this work, the multi shape memory effect is studied for two types of thermal active epoxy polymer composites. One of them is called the controlled behavior of composite material (CBCM) which has already been tested as an unsymmetrical active composite and the other one is the conventional symmetrical composite.
Basit, Abdul, L'Hostis, Gildas
openaire   +3 more sources

Phase field simulation on the grain size dependent super-elasticity and shape memory effect of nanocrystalline NiTi shape memory alloys

, 2020
Based on the Ginzburg-Landau's theory, the free energy function of polycrystalline system was modified by introducing an extra grain boundary energy, and a new two-dimensional phase field model considering the continuous variation of temperature was ...
Bo Xu, G. Kang, Chao Yu, Q. Kan
semanticscholar   +1 more source

Mechanisms of the multi-shape memory effect and temperature memory effect in shape memory polymers

Soft Matter, 2010
As recently demonstrated, after programming, thermo-responsive shape memorypolymers can exhibit the multi-shape memory effect (SME) upon heating. In addition, it is confirmed that the temperature corresponding to the maximum recovery stress in constrained recovery is roughly the temperature at which pre-deformation is conducted, a phenomenon known as ...
Li Sun, Wei Min Huang
openaire   +1 more source

Selective laser melting of NiTi alloy with superior tensile property and shape memory effect

Journal of Materials Science & Technology, 2019
It is a challenge to develop complex-shaped NiTi shape memory alloy parts by traditional processing methods, due to the poor machinability of NiTi alloy.
Zhiwei Xiong, Zhonghan Li, Zhenfeng Sun, S. Hao, Ying Yang, M. Li, Changhui Song, P. Qiu, L. Cui   +8 more
semanticscholar   +1 more source

Multireusable Thermoset with Anomalous Flame-Triggered Shape Memory Effect.

ACS Applied Materials and Interfaces, 2019
While thermosets with high mechanical properties and shape memory capabilities have been developed in recent years, two main bottlenecks persist in their intrinsic nonreusability and flammability, especially for those shape memory thermosets used in ...
Xiaming Feng, Jizhou Fan, Ang Li, Guoqiang Li   +3 more
semanticscholar   +1 more source