Results 311 to 320 of about 1,067,391 (347)

Shape memory polymer composite structures with two-way shape memory effects

Materials Letters, 2012
Abstract Shape memory polymers (SMPs) usually exhibit one-way shape memory effect. A simple and effective way to obtain two-way shape memory effect by SMP composite structures is proposed. The system consists of a SMP film with higher glass transition temperature Tg surrounded on another SMP cylindrical core with lower Tg.
Zhengdao Wang, Weibin Song, Liaoliang Ke, Yuesheng Wang   +3 more
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Relationship between Annealing and Shape Memory Effect of Shape Memory Polyurethane

Advanced Materials Research, 2014
The relationship of annealing and shape memory effect of uniaxially oriented shape memory polyurethane was studied; meanwhile a new method of adjusting shape recovery ratio by annealing was proposed for further consideration. Experiments were designed to compare the influence on length change from annealing and shape memory effect with shape memory ...
Jia Ying, Masaaki Nishikawa, Masaki Hojo
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Superelastic and Shape Memory Effects in Laminated Shape-Memory-Alloy Beams

AIAA Journal, 2003
A simple shape-memory-alloy (SMA) model to simulate the superelastic behavior as well as the shape memory effect is proposed. It considers only the transformations from austenite to single-variant martensite and from single-variant martensite to austenite, taking into account the ine uence of the temperature in the constitutive relationship.
S. Marfia, E. Sacco, J. N. Reddy
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Shape memory effect of antiferroelectrics

Ferroelectrics, 2001
Abstract Pb(Zr0.95 Ti0.05)O3 (PZT) antiferroelectric ceramics have been fabricated by sintering and their structure and phase transition behavior were studied by X-ray diffraction (XRD) and Differential Scanning Calorimetry (DSC). The phase transition order is anti-ferroelectric (ARE) → ferroelectric (FE) → Paraelectric with structure changes ...
Yurong Dai, Ying Chen, Huimin Shen, Zhifang Zhang, Yening Wang   +4 more
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The Shape-Memory Effect

2003
Abstract We are now in a position to discuss the shape-memory effect. Recall from the introduction that this is the ability of certain materials to recover, on heating, apparently plastic deformation sustained below a critical temperature.
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Magnetization and shape memory effect of ferromagnetic shape memory alloy wire

IEEE Transactions on Magnetics, 1999
Magnetization and shape memory effect (SME) of Fe-Mn-Cr-Si, magnetic shape memory alloy(SMA) have been investigated. The specimen used is a commercial product wire of diameter 1.2 mm. The properties largely depend on heat treatment conditions, so it is treated thermally under three different conditions. As a result, pre-heating before heat treatment is
T. Kanada, M. Enokizono
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Phase transition of shape-memory effect in glassy shape-memory polymers

SPIE Proceedings, 2013
Shape-memory materials (SMMs) are fascinating materials, with the potential for application as “smart materials” and also as actively moving materials, which can change their shape in a predefined way between/among shapes in presence of an appropriate stimulus.
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Shape memory effect of dual-phase NiMnGaTb ferromagnetic shape memory alloys

Journal of Iron and Steel Research International, 2018
The evolution of microstructure, reverse martensitic transformation and the correlated influence on shape memory effect was investigated in as-cast and directionally solidified dual-phase NiMnGaTb alloys. The directionally solidified alloys exhibit single-crystal microstructure, preferred dendrite microstructure, and mussy dendrite microstructure in ...
Jiang Zhang, Yong-hong Ma, Ruo-lin Wu, Jing-min Wang   +3 more
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WATER-INDUCED SHAPE MEMORY EFFECT OF EPOXY-BASED SHAPE MEMORY POLYMER

2013
The novel epoxy-based SMP display good shape memory effect in response to water. This study advocates the design concept and presents some experimental results of the water-induced smart composite.
Wenxin Wang, Haibao Lu, Yanju Liu, Jinsong Leng   +3 more
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Reversible shape memory effect

Scripta Metallurgica, 1974
A. Nagasawa, K. Enami, Y. Ishino, Y. Abe, S. Nenno   +4 more
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