Results 1 to 10 of about 9,389 (196)

Processing Effects on the Martensitic Transformation and Related Properties in the Ni₅₅Fe₁₈Nd₂Ga₂₅ Ferromagnetic Shape Memory Alloy [PDF]

Nanomaterials, 2022
The influence of processing on the martensitic transformation and related magnetic properties of the Ni55Fe18Nd2Ga25 ferromagnetic shape memory alloy, as bulk and ribbons prepared by the melt spinning method and subjected to different thermal treatments,
Mihaela Sofronie, Bogdan Popescu, Monica Enculescu, Mugurel Tolea, Felicia Tolea   +4 more
doaj   +2 more sources

Physical Characterization of Sintered NiMnGa Ferromagnetic Shape Memory Alloy. [PDF]

Materials (Basel), 2020
The present work focused on the microstructural, thermal, electrical, and damping characterization of NiMnGa samples produced through a powder pressing and a sintering process; the effect of sintering times and of the starting powder size were evaluated.
Villa F, Nespoli A, Fanciulli C, Passaretti F, Villa E.   +4 more
europepmc   +4 more sources

Origami-inspired reprogrammable microactuator system [PDF]

Microsystems & Nanoengineering
A reprogrammable microactuator system is presented, consisting of antagonistic shape memory alloy (SMA) microactuators for bidirectional folding of miniature-scale tiles following the concept of origami.
Vincent Gottwald, Lena Seigner, Makoto Ohtsuka, Rundong Jia, Pejman Shayanfard, Frank Wendler, Lars Bumke, Eckhard Quandt, Manfred Kohl   +8 more
doaj   +2 more sources

Nanoscale magneto-structural coupling in as-deposited and freestanding single-crystalline Fe7Pd3 ferromagnetic shape memory alloy thin films [PDF]

Science and Technology of Advanced Materials, 2013
Ferromagnetic shape memory alloys are characterized by strong magneto-mechanical coupling occurring at the atomic scale causing large magnetically inducible strains at the macroscopic level. Employing combined atomic and magnetic force microscopy studies
Anja Landgraf, Alexander M Jakob, Yanhong Ma and Stefan G Mayr
doaj   +2 more sources

Effect of sintering temperature on the mechanical properties of vacuum sintered Co-(Zn)-Ni-Al alloys [PDF]

Science of Sintering, 2020
In the present study, the wear resistance behavior and the microhardness of the Co38Ni35Al27 and Co35Zn10Ni32Al23 ferromagnetic shape memory alloys (FSMAs) were investigated. The alloy samples were prepared by powder metallurgy method along with
Johnsy Arputhavalli G., Agilan S., Jebasingh S., Vijay Joseph S.   +3 more
doaj   +1 more source

Phase Field Simulations of Microstructures in Porous Ferromagnetic Shape Memory Alloy Ni₂MnGa

Metals, 2023
The magnetic domain structures and martensite microstructures of porous Ni2MnGa Heusler alloys with various circle-shaped and ellipse-shaped pores were systematically studied by the phase field method.
Cailian Xu, Yu Huang, Yongfeng Liang, Pingping Wu   +3 more
doaj   +1 more source

Elastocaloric Effect in Aged Single Crystals of Ni₅₄Fe₁₉Ga₂₇ Ferromagnetic Shape Memory Alloy

Metals, 2022
In the present study, the effect of γ′-phase dispersed particles on both the L21(B2)-10M/14M-L10 martensitic transformations and the elastocaloric effect in aged Ni54Fe19Ga27 single crystals oriented along the [001]-direction was investigated.
Elena Y. Panchenko, Eleonora I. Yanushonite, Anna S. Eftifeeva, Aida B. Tokhmetova, Irina D. Kurlevskaya, Anton I. Tagiltsev, Nikita S. Surikov, Ekaterina E. Timofeeva, Yuri I. Chumlyakov   +8 more
doaj   +1 more source

Terahertz Metamaterial Absorber Based on Ni–Mn–Sn Ferromagnetic Shape Memory Alloy Films

Metals, 2023
Terahertz absorbers have been extensively investigated by researchers due to their applications in thermophotovoltaic energy conversion and sensors, but a key factor limiting their development is the lack of vital and versatile materials.
Rui Liu, Xiaochuan Wang, Jiachen Zhu, Xiaohua Tian, Wenbin Zhao, Changlong Tan, Kun Zhang   +6 more
doaj   +1 more source

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

Modelling Shape-Memory Effects in Ferromagnetic Alloys [PDF]

Shape Memory and Superelasticity, 2015
We develop a combined Ginzburg–Landau/micromagnetic model dealing with conventional and magnetic shape-memory properties in ferromagnetic shape-memory materials. The free energy of the system is written as the sum of structural, magnetic and magnetostructural contributions.
Gebbia, Jonathan Fernando, Lloveras Muntané, Pol Marcel, Planes Vila, Antoni, Castán Vidal, Teresa, Saxena, Avadh   +4 more
openaire   +3 more sources