Results 41 to 50 of about 3,361 (221)

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Superelastic Softening of Ferroelastic Multidomain Crystals [PDF]

Ferroelectrics, 2012
Many proper and improper ferroelastic materials display (at sufficiently low measurement frequencies) a huge elastic softening below Tc. This giant elastic softening, which can be suppressed with uniaxial stress, is caused by domain wall motion. Here we shortly review our results on frequency and temperature dependent elastic measurements of some ...
Schranz, Wilfried, Kabelka, Heinz, Tröster, Andreas   +2 more
openaire   +2 more sources

Stress-Induced Transformation and Superelasticity in Ni-Ti-Nb Alloys

, 2014
The present study reveals some new aspects of stress-induced martensitic transformation in a Ni47Ti44Nb9 alloy, with focus on the wide-window superelasticity.
J.W. Simpson, J.H. Yang
core   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Shape Memory Effect and Superelasticity of [001]-Oriented FeNiCoAlNb Single Crystals Aged under and without Stress

Metals, 2021
The two-step ageing of Fe-28Ni-17Co-11.5Al-2.5Nb (at.%) single crystals under and without stress, leads to the precipitation of the γ′- and β-phase particles.
Yuriy I. Chumlyakov, Irina V. Kireeva, Zinaida V. Pobedennaya, Philipp Krooß, Thomas Niendorf   +4 more
doaj   +1 more source

Superelasticity in micro-scale shape memory ceramic particles

, 2016
Shape memory ceramics that exhibit repeatable superelastic deformation are of considerable significance for possible energy damping and micro-actuation applications, and the present work aims to further establish the structural conditions required to ...
Zeng, Xiao Mei, Du, Zehui, Gan, Chee Lip, Liu, Qing, Schuh, Christopher A   +4 more
core   +1 more source

Einfluss von µ-Drahterodieren auf das Umwandlungsverhalten von medizinischem Nitinol

, 2022
S.450-461Most nitinol medical applications are hinged on its superelasticity and shape memory-two unique properties that are dependent on nitinol's phase transformation between a martensitic phase and an austenitic phase.
Schubert, Andreas, Weisheit, Linda, Zanjani, Matin Yahyavi, Mwangi, James Wamai, Bui, Viet Duc   +4 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Metastable twin boundary mediating superelasticity and ferroelasticity in monolayer group IV monochalcogenides

npj Computational Materials
Although covalent and ionic inorganic semiconductors have traditionally been excluded from exhibiting superelastic behavior, recent atomic-scale high-resolution transmission electron microscopy has revealed superelasticity in bulk group-IV ...
Chong Wang, Keying Han, Biao Ma, Bingchao Yang, Xiaobing Liu, Yingchun Cheng, Anmin Nie, Zhongyuan Liu   +7 more
doaj   +1 more source

Study on Superelasticity and Microstructure of TiNiV Shape Memory Alloy by Medium-Temperature Treatment

, 2011
The TiNiV shape memory alloy wire that was cold pressed under 9Mpa at the room temperature had good superelasticity. On this basis, a tensile test was made after a series of medium-temperature treatment.
Guang Lei Liu, Nai Chao Si, Song Hai Si, Zhi Jian Zhang   +3 more
core   +1 more source