Results 21 to 30 of about 2,536 (262)

Acoustic Emissions during Structural Changes in Shape Memory Alloys

Metals, 2019
Structural changes (martensitic transformation, rearrangements of martensitic variants) in shape memory alloys have an intermittent character that is accompanied by the emission of different (thermal, acoustic, and magnetic) noises, which are ...
Dezső László Beke, Lajos Daróczi, László Zoltán Tóth, Melinda Kalmárné Bolgár, Nora Mohareb Samy, Anikó Hudák   +5 more
doaj   +1 more source

In-Situ Study of Temperature- and Magnetic-Field-Induced Incomplete Martensitic Transformation in Fe-Mn-Ga

Crystals, 2023
Significant interest in the stoichiometric and off-stoichiometric Fe2MnGa alloys is based on their complex phase transition behavior and potential application.
Xiaoming Sun, Jingyi Cui, Shaofu Li, Zhiyuan Ma, Klaus-Dieter Liss, Runguang Li, Zhen Chen   +6 more
doaj   +1 more source

Design and Control of Magnetic Shape Memory Alloy Actuators

Materials, 2022
This paper presents research on the application of magnetic shape memory alloys (MSMAs) in actuator design. MSMAs are a relatively new group of so-called smart materials that are distinguished by repeatable strains up to 6% and dynamics much better than that of thermally activated shape memory alloys (SMAs). The shape change mechanism in MSMAs is based
Bartosz Minorowicz, Andrzej Milecki
openaire   +2 more sources

Simultaneous improvement of magnetic-field-induced working temperature and mechanical properties in Ni–Mn–In shape memory alloy

AIP Advances, 2022
Ni–Mn–In magnetic shape memory alloys, which can be stimulated by an external magnetic field, exhibit a fast response and have aroused wide attention in the field of electro-mechanical actuators.
Tianyou Ma, Kun Zhang, Binglun Han, Lei Zhao, Wenbin Zhao, Cheng Wang, Rui Liu, Xiaohua Tian, Changlong Tan   +8 more
doaj   +1 more source

Thermal and magnetic properties of Ni51Mn28.5Ga19.5B magnetic-shape-memory alloy

Journal of Thermal Analysis and Calorimetry, 2013
Ni51Mn28.5Ga19.5B magnetic shape-memory alloy was produced in Arc melter under vacuum. The crystal structure of the produced alloy was determined by using XRD. The XRD analysis results indicated the presence of two phases; namely the martensitic phase that the alloy was determined to display non-modulated martensitic phase and the gamma phase ...
Kok, M., Yakinci, Z. D., Aydogdu, A., Aydogdu, Y.   +3 more
openaire   +3 more sources

Magnetic-responsive triple shape memory polymer from bio-based benzoxazine/urethane polymer alloys with iron oxide nanoparticles

Advanced Industrial and Engineering Polymer Research
Novel magnetic-responsive triple shape memory polymers (SMPs) derived from bio-based benzoxazine-urethane (V-fa/PU) polymer alloys containing iron oxide nanoparticles (Fe3O4 NPs) were developed in this work. Shape memory effect and curing behavior of the
Kullanard Ruenpanya, Phattarin Mora, Panagiotis Karagiannidis, Kittipon Bunyanuwat, Sarawut Rimdusit   +4 more
doaj   +1 more source

Electronic structure and magnetic properties of bulk elements (Fe and Pd) and ordered binary alloys (FePd and Fe3Pd):TB-LMTO-ASA

Bibechana, 2014
The binary alloys formed from the elements of Fe and Pd like FePd and Fe3Pd, have the strange electronic and magnetic properties, generally used in shape memory alloys, Computational chips, Medical purposes as well as modern technological uses.
Suraj Pandey, Gopi Chandra Kaphle, Narayan Prasad Adhikari   +2 more
doaj   +3 more sources

Mössbauer Spectroscopy Studies on Magnetic Properties for 57Fe-substituted Ni-Mn-Sn Metamagnetic Shape Memory Alloys

Metals, 2013
In order to investigate the Fe substituted effects on the magnetic properties of the Ni-Mn-Sn metamagnetic shape memory alloys, magnetization and the Mössbauer spectroscopy measurements were carried out with using 57Fe-doped specimens of Ni2Mn1.48 ...
Ryosuke Kainuma, Yasushi Amako, Yusuke Taniguchi, Kenji Sano, Kouji Fukushima, Takeshi Kanomata, Rie Y. Umetsu   +6 more
doaj   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Phase stability and magnetic-field-induced martensitic transformation in Mn-rich NiMnSn alloys

AIP Advances, 2012
A series of Ni50-xMn41+xSn9 (x = 0–19) alloys from Ni-rich to Mn-rich composition were prepared, and the composition dependence of phase transitions and magnetic properties were investigated. No γ-phase can be observed until x = 17.
Q. Tao, Z. D. Han, J. J. Wang, B. Qian, P. Zhang, X. F. Jiang, D. H. Wang, Y. W. Du   +7 more
doaj   +1 more source