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Relevant bibliographies by topics / Ni-Mn-Ga System

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Academic literature on the topic 'Ni-Mn-Ga System'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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Journal articles on the topic "Ni-Mn-Ga System"

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Mahendran, Manickam, Jorge Feuchtwanger, and Robert C. O'Handley. "Acoustic Energy Absorption in Ferromagnetic Ni-Mn-Ga Shape Memory Alloy Polymer Composites." Advanced Materials Research 52 (June 2008): 87–94. http://dx.doi.org/10.4028/www.scientific.net/amr.52.87.

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The single crystal Ni-Mn-Ga and Ni-Mn-Ga particulate composites have responded to mechanical stress up to 1 kHz frequencies with significant acoustic attenuation. It has been observed that in Ni-Mn-Ga polymer composites, a heavy static load on both the ends of the system increases the acoustic stress amplitude and appears to have acoustic loss drops. The attenuation, as a function of frequency shows resonances in the displacement of the vibrating particle indicating the twin boundary motions. It is inferred that the resonances beyond the principal mode are highly damped in the Ni-Mn-Ga composi

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Ma, Yunqing, Shuiyuan Yang, Yan Zhou, Cuiping Wang, and Xingjun Liu. "A new ternary compound (Ni, Mn)2Ga in Ni–Mn–Ga system." Intermetallics 18, no. 11 (2010): 2105–8. http://dx.doi.org/10.1016/j.intermet.2010.06.017.

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Gupta, K. P. "The Ga-Mn-Ni (Gallium-Manganese-Nickel) System." Journal of Phase Equilibria and Diffusion 29, no. 1 (2007): 101–9. http://dx.doi.org/10.1007/s11669-007-9017-x.

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Ma, Yun Qing, Shui Yuan Yang, Ryosuke Kainuma, Kiyohito Ishida, Cui Ping Wang, and Xing Jun Liu. "Experimental Investigations of the High-Temperature Phase Relationship and Ordering Transition in Ni-Mn-Ga Ternary System." Advanced Materials Research 148-149 (October 2010): 1695–700. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1695.

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The phase equilibria at 900 °C and B2/L21 order-disorder transition in the Ni-Mn-Ga ternary system were investigated by analyzing the equilibrated alloys and diffusion couples using a combination of techniques. It was confirmed that a bcc single phase region exists in a wide composition range at 900 °C, and the critical temperatures of B2/L21 order-disorder transition were determined in Ni-50 at.% section, which exhibits a maximal ordering transition temperature of 796 at Mn content of 25 at.%. The obtained results will be helpful for the preparation and annealing of Ni-Mn-Ga alloys in the spe

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Mahalakshmi, Chelliah, Racil Jeya Geetha, Shanmugam Vinodh Kumar, Sonai Seenithurai, and Manickam Mahendran. "Attenuation of dilatational wave in ferromagnetic shape memory alloy polyurethane polymer composites." Journal of Composite Materials 51, no. 19 (2016): 2727–32. http://dx.doi.org/10.1177/0021998316677848.

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The ferromagnetic shape memory alloy polyurethane, Ni-Mn-Ga-PU, polymer composites absorb more mechanical energy than the conventional materials used for vibration damping applications. The vibration damping has been investigated using the custom-made experimental setup. The computed resonance peak values are in agreement with the experimental data. The dilatational wave decreases at high frequencies which is consistent with the theory of resonance frequency. The previously free end of the system increases the amplitude stress for an appreciable static load but loss appears to be very small. T

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Chernenko, V. A., V. V. Kokorin, O. M. Babii, and I. K. Zasimchuk. "Phase diagrams in the NiMnGa system under compression." Intermetallics 6, no. 1 (1998): 29–34. http://dx.doi.org/10.1016/s0966-9795(97)00050-2.

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Chernenko, Volodymyr A., O. Babii, Victor A. L'vov, and Paul G. McCormick. "Martensitic Transformations in Ni-Mn-Ga System Affected by External Fields." Materials Science Forum 327-328 (January 2000): 485–88. http://dx.doi.org/10.4028/www.scientific.net/msf.327-328.485.

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Wedel, C., and K. Itagaki. "High-temperature phase relations in the ternary Ga-Mn-Ni system." Journal of Phase Equilibria 22, no. 3 (2001): 324–30. http://dx.doi.org/10.1361/105497101770338833.

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Jiang, Lei, Yanbo Dong, and Zhen Cui. "Adsorption of Metal Atoms on SiC Monolayer." Inorganics 11, no. 6 (2023): 240. http://dx.doi.org/10.3390/inorganics11060240.

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The electronic, magnetic, and optical behaviors of metals (M = Ag, Al, Au, Bi, Ca, Co, Cr, Cu, Fe, Ga, K, Li, Mn, Na, Ni) adsorbed on the SiC monolayer have been calculated based on density functional theory (DFT). The binding energy results show that all the M-adsorbed SiC systems are stable. All the M-adsorbed SiC systems are magnetic with magnetic moments of 1.00 μB (Ag), 1.00 μB (Al), 1.00 μB (Au), 1.01 μB (Bi), 1.95 μB (Ca), 1.00 μB (Co), 4.26 μB (Cr), 1.00 μB (Cu), 2.00 μB (Fe), 1.00 μB (Ga), 0.99 μB (K), 1.00 μB (Li), 3.00 μB (Mn), and 1.00 μB (Na), respectively, except for the Ni-adsor

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Sokolovskaya, Yulia, Olga Miroshkina, Danil Baigutlin, et al. "A Ternary Map of Ni–Mn–Ga Heusler Alloys from Ab Initio Calculations." Metals 11, no. 6 (2021): 973. http://dx.doi.org/10.3390/met11060973.

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In the search for new magnetic functional materials, non-stoichiometric compounds remain a relatively unexplored territory. While experimentalists create new compositions looking for improved functional properties, their work is not guided by systematic theoretical predictions. Being designed for perfect periodic crystals, the majority of first-principles approaches struggle with the concept of a non-stoichiometric system. In this work, we attempt a systematic computational study of magnetic and structural properties of Ni–Mn–Ga, mapped onto ternary composition diagrams. Compositional stabilit

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Dissertations / Theses on the topic "Ni-Mn-Ga System"

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Ener, Semih [Verfasser], Winfried [Akademischer Betreuer] Petry, Christian [Akademischer Betreuer] Pfleiderer, and J. Leo van [Akademischer Betreuer] Hemmen. "Lattice Dynamics in Ferromagnetic Shape Memory Alloy System Ni-Mn-Ga / Semih Ener. Gutachter: Christian Pfleiderer ; J. Leo van Hemmen ; Winfried Petry. Betreuer: Winfried Petry." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1031075739/34.

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Bai, Jing. "Study on structural, electronic and magnetic properties of Ni-Mn-Ga and Ni-Mn-In ferromagnetic shape memory alloy systems." Thesis, Metz, 2011. http://www.theses.fr/2011METZ016S/document.

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Les Alliages à Mémoire de Forme Ferromagnétiques (AMFF) sont de nouveaux matériaux intelligents qui présentent des déformations induites par l’application d’un champ magnétique pouvant aller jusqu’à 10%. Ainsi, ils ont un fort potentiel pour de nombreuses applications technologiques. En outre, les couplages forts entre le champ magnétique et la structure dans ces matériaux rendent le phénomène « mémoire » très intéressant d'un point de vue scientifique. Ce travail présente une investigation de ces matériaux via des calculs ab initio effectues en utilisant la théorie de la fonctionnelle de la d

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Sharma, Amit. "Evolution of Crystallographic Texture and Microstructure in Sputter Deposited NiMnGa Thin Films and Their Influence on Magnetic Properties." Thesis, 2015. https://etd.iisc.ac.in/handle/2005/4543.

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Shape memory alloys are the promising candidate materials for sensing and actuator-based applications. Amongst a variety of shape memory alloys, NiMnGa based magnetic shape memory alloys are technologically most important owing to their superior properties such as large recoverable strain, low field actuation and fast response. In the present study, a systematic study has been performed to understand the effect of growth conditions and substrate selection on the texture, microstructure and magnetic properties of sputter deposited NiMnGa thin films. The film deposited in Zone T condition (500

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Book chapters on the topic "Ni-Mn-Ga System"

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Okamoto, Nariaki, Takashi Fukuda, Tomoyuki Kakeshita, and Tetsuya Takeuchi. "Magnetocrystalline Anisotropy and Twinning Stress of 10M and 2M Martensites in Ni-Mn-Ga System." In Materials Science Forum. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-996-2.195.

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Conference papers on the topic "Ni-Mn-Ga System"

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Faidley, LeAnn E., Marcelo J. Dapino, and Gregory N. Washington. "Strain Model for Ni-Mn-Ga With Collinear Field and Stress." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79092.

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Ferromagnetic shape memory alloys in the Ni-Mn-Ga system exhibit large reversible deformations of up to 9.5% in response to magnetic fields. Prior experimental measurements by the authors demonstrated large reversible strains of −0.41% along the [001] crystal direction of a cylindrical Ni50Mn28.7Ga21.3 rod driven with a magnetic field along the same direction and no external restoring force. This represents an unusual configuration which can lead to solenoid transducers with enhanced energy density and bandwidth relative to standard electromagnet devices. The paper builds on a previous thermod

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Kohl, Manfred, Berthold Krevet, Srinivasa R. Yeduru, Yossi Ezer, and Alexei Sozinov. "A Ferromagnetic Shape Memory Foil Actuator." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3652.

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This paper presents experimental and simulation results on the performance of a new kind of linear actuator making use of the magnetic shape memory (MSM) effect. The actuation material is a Ni-Mn-Ga foil of 200 μm thickness that has been fabricated from a bulk Ni-Mn-Ga (100) single crystal consisting of 10 M martensite variants at room temperature. Stress-strain experiments on tensile test structures demonstrate that the stress needed for reorientation of martensite variants is about 1.2 MPa. The low twinning stress allows magnetic-field induced variant switching, the basic mechanism of MSM ac

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Auernhammer, Daniel, Manfred Kohl, Berthold Krevet, and Makoto Ohtsuka. "Intrinsic Position Sensing of a Ni-Mn-Ga Microactuator." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-378.

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This paper presents an investigation of the intrinsic magnetoresistance of a ferromagnetic shape memory alloy (FSMA) microactuator for position sensing. The microactuator is designed as a double-beam cantilever of a polycrystalline Ni-Mn-Ga thin film, which exhibits both, a martensitic transformation in the temperature range 333–359 K and a ferromagnetic transition at about 370 K. The microactuator is placed in the inhomogeneous magnetic field of a miniature Nd-Fe-B magnet causing a mixed thermo-magneto-resistance effect upon actuation. The maximum in-plane magnetic field is about 0.38 Tesla.

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Kiang, Jademond, and Liyong Tong. "Characterization of Ni-Mn-Ga Shape Memory Single Crystals for Magnetic Properties and Magnetic Field Induced Shear and Normal Strains." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9133.

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This paper presents a novel experimental apparatus and a test method for measuring simultaneously quasi-static average longitudinal and shear magnetic-field-induced strain (MFIS) of Ni-Mn-Ga single crystals. The apparatus consists of an aluminum casing, a weight-controlled plunger, two displacement probes (one vertical and one lateral), and a torsion guide etc. Three Ni-Mn-Ga square prism samples were tested. Twin boundary bands were clearly visible after the application of magnetic field. A range of material properties were measured. These include: (a) magnetic anisotropy constant; (b) single

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Bruno, Nickolaus M., Constantin Ciocanel, Heidi P. Feigenbaum, and Alex Waldauer. "A Theoretical and Experimental Study on the Dynamic Response of Ni-Mn-Ga Specimens for Energy Harvesting." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5108.

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This paper presents experimental results and model predictions on power harvesting/sensing capabilities of magnetic shape memory alloys (MSMAs). The theoretical predictions are made using a refined thermodynamic based constitutive model, developed initially by Kiefer and Lagoudas. In an attempt to better predict the observed experimental response of the material at high frequencies, dynamic effects are included in the simulation. Furthermore, internal magnetic and external Lorentz forces are also included in the analysis and their effect on the material’s overall response is discussed. The exp

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Sarawate, Neelesh, and Marcelo Dapino. "Characterization and Modeling of Dynamic Sensing Behavior in Ferromagnetic Shape Memory Alloys." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-656.

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This paper is focused on the characterization and modeling of a commercial Ni-Mn-Ga alloy for use as a dynamic deformation sensor. The flux density is experimentally determined as a function of cyclic strain loading at frequencies from 0.2 Hz to 160 Hz. With increasing frequency, the stress-strain response remains almost unchanged whereas the flux density-strain response shows increasing hysteresis. This behavior indicates that twin-variant reorientation occurs in concert with the mechanical loading, whereas the rotation of magnetization vectors occurs with a delay as the loading frequency inc

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Krevet, B., M. Kohl, and V. Pinneker. "FEM Simulation of a Magnetic Shape Memory Foil Actuator Under Different Loading Conditions." In ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2011. http://dx.doi.org/10.1115/smasis2011-5052.

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This paper presents a finite element model and simulation results on the performance of a novel linear actuator using the magnetic shape memory (MSM) effect in a Ni-Mn-Ga foil loaded by a mechanical spring. We present finite element simulations with a material model based on the thermodynamic Gibbs free energy in a finite element program (FEM) using beam elements, which is combined with an integral magnetic solver. The simulations qualitatively describe the observed tensile stress-dependence of magneto strain of a first demonstrator of a MSM foil actuator. We demonstrate that complete reversib

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Pagounis, Emmanouel, and Markus Laufenberg. "New Ferromagnetic Shape Memory Alloy Production and Actuator Concepts." In ASME 2012 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/smasis2012-8042.

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Over the past decade ferromagnetic shape memory alloys (FSMA) have been the subject of intensive R&D work due to their potential in actuators, sensors, and intelligent systems. These smart materials can elongate and contract up to 10% when subjected to moderate magnetic fields, generating thus motion and force. Typically FSMA materials are alloys of Ni-Mn-Ga with various off-stoichiometric compositions. A new production approach based on commercially available machinery is introduced in this paper. Large single crystals have been produced demonstrating homogeneous structure and excellent m

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