Results 91 to 100 of about 9,463 (269)

First-principles study of Zn-doping effects on phase stability and magnetic anisotropy of Ni-Mn-Ga alloys

Materials Research Express, 2020
The effect of Zn doping on Ni-Mn-Ga magnetic shape memory alloy was studied by the first-principles calculations using exact muffin-tin orbital method in combination with the coherent-potential approximation and projector augmented-wave method. Trends in
Jozef Janovec, Ladislav Straka, Alexei Sozinov, Oleg Heczko, Martin Zelený   +4 more
doaj   +1 more source

Elastocaloric Properties of Polycrystalline Samples of NiMnGaCu Ferromagnetic Shape Memory Alloy under Compression: Effect of Improvement of Thermoelastic Martensitic Transformation. [PDF]

Materials (Basel), 2022
Villa F, Bestetti E, Frigerio R, Caimi M, Tomasi C, Passaretti F, Villa E.   +6 more
europepmc   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Influence of internal stress on magnetostrain effect in Ni–Mn–Ga/polymer composite

Results in Materials, 2019
The outstanding role of internal stress in the silicone matrix driving a magnetostrain reversal of embedded particles of the Ni–Mn-Ga ferromagnetic shape memory alloy after removal of magnetic field, has been disclosed by finite element (FE) simulations ...
Pimpet Sratong-on, Volodymyr Chernenko, Hideki Hosoda   +2 more
doaj   +1 more source

Modulation on Ni2MnGa(001) surface [PDF]

, 2010
We report periodic modulation on (001) surface of Ni2MnGa ferromagnetic shape memory alloy. For the stoichiometric surface, analysis of the low energy electron diffraction (LEED) spot profiles shows that the modulation is incommensurate.
Barman, S., D'Souza, S., Dhaka, R., Lograsso, Thomas, Lograsso, Thomas, Maniraj, M., Nayak, J., Rai, Abhishek, Schlagel, Deborah, Schlagel, Deborah   +9 more
core   +2 more sources

First-principles study of lattice instabilities in the ferromagnetic martensite Ni$_2$MnGa

, 2003
The phonon dispersion relations and elastic constants for ferromagnetic Ni$_2$MnGa in the cubic and tetragonally distorted Heusler structures are computed using density-functional and density-functional perturbation theory within the spin-polarized ...
A. Ayuela, A. Dal Corso, A. Dal Corso, A. Dal Corso, A. Planes, A. Sozinov, A. Zheludev, A. Zheludev, A. Zheludev, A.T. Zayak, Claudia Bungaro, D. Vanderbilt, H.J. Monkhorst, J. Worgull, J.P. Perdew, K. M. Rabe, L. Mañosa, M. Methfessel, M. Pugaczowa-Michalska, O.H. Nielsen, O.H. Nielsen, O.I. Velikokhatny, P.J. Webster, P.J. Webster, R. Tickle, S. Baroni, S. Louie, S.J. Murray, V. Buchelnikov, V.V. Godlevsky, V.V. Martynov, V.V. Martynov, Y. Lee   +32 more
core   +1 more source

4D Printing of Multimaterial Flexible Magneto‐Active Polymers

Advanced Materials Technologies, EarlyView.
Magneto‐active polymers are 3D‐printed with tunable mechanical and magnetic properties using both superparamagnetic and hard ferromagnetic fillers. Nano‐CT imaging reveals the spatial distribution of particles within the matrix. Programmable magnetization patterns and soft, flexible architectures enable responsive actuation, offering exciting ...
Naji Tarabay, Mahtab Shakibmanesh, Javier Alonso López Medina, Hongyi Guan, Alan Mitchell, Ananya Renuka Balakrishna, Camilo Velez   +6 more
wiley   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Ion-irradiation-assisted tuning of phase transformations and physical properties in single crystalline Fe7Pd3 ferromagnetic shape memory alloy thin films

New Journal of Physics, 2015
Control of multi-martensite phase transformations and physical properties constitute greatly unresolved challenges in Fe _7 Pd _3 -based ferromagnetic shape memory alloys.
A Arabi-Hashemi, R Witte, A Lotnyk, R A Brand, A Setzer, P Esquinazi, H Hahn, R S Averback, S G Mayr   +8 more
doaj   +1 more source

Tweed in Martensites: A Potential New Spin Glass

, 1992
We've been studying the ``tweed'' precursors above the martensitic transition in shape--memory alloys. These characteristic cross--hatched modulations occur for hundreds of degrees above the first--order shape--changing transition.
, Bequart C, Duerig T W, James A Krumhansl, James P Sethna, Khachaturyan A, Korenblit I Ya, Mezard M, Muto S, Onozuko T, Oshima R, Parisi G, Parisi G, Parisi G, Robertson I M, Robertson I M, Robertson I M, Schmahl W W, Sivan Kartha, Tanner L E, Teresa Castán   +20 more
core   +1 more source