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Journal articles on the topic 'Magnetoelastic materials'

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Author: Grafiati

Published: 14 March 2023

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1

NIKITIN, L. V., and A. N. SAMUS. "MAGNETOELASTICS AND THEIR PROPERTIES." International Journal of Modern Physics B 19, no. 07n09 (April 10, 2005): 1360–66. http://dx.doi.org/10.1142/s021797920503030x.

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The effect of a uniform magnetic field on the elastic and viscous properties of new magnetocontrolled materials (magnetoelastics) was studied. It was found that the application of a magnetic field leads to a considerable rise both in Young's modulus and in the viscosity of these materials. We investigated the samples prepared both in the absence of magnetic field and in the magnetic field applied during magnetoelastic curing.

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2

Sheng, Ping, Yali Xie, Yuhao Bai, Baomin Wang, Lei Zhang, Xingcheng Wen, Huali Yang, Xiaoyuan Chen, Xiaoguang Li, and Run-Wei Li. "Magnetoelastic anisotropy of antiferromagnetic materials." Applied Physics Letters 115, no. 24 (December 9, 2019): 242403. http://dx.doi.org/10.1063/1.5128141.

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3

Kasinathan, Sakthivel T., and Sivakumar M. Srinivasan. "Magnetoelasticity of gels." Journal of Intelligent Material Systems and Structures 29, no. 9 (February 14, 2018): 1913–27. http://dx.doi.org/10.1177/1045389x18754349.

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Magnetoelastic gel is an active material that is used widely these days. The behavior of these multifunctional gels is derived from a polymer matrix and magnetoresponsive inclusions. The polymer matrix provides structural integrity as well as load bearing capacity to the magnetoelastic gel. The magnetic behavior of the magnetoelastic gel is attributed to a large number of nano-to-micron-sized magnetic particles disbursed in the polymer matrix. The magnetoelastic gel is said to be diluted if the interparticle interactions are negligible/small or concentrated if there are strong interparticle interactions. We consider strong interparticle interactions in the magnetoelastic gel. When the magnetic field is applied to the magnetoelastic gel, the disbursed magnetic particles tend to translate and rotate to a new deformed configuration. Due to these translations and rotations of the many magnetoelastic particles, the polymer matrix around each particle deforms. These micro-deformations then coalesce and lead to the overall macroscopic deformation of the magnetoelastic gel. Both magnetization and mechanical strain characterize the magnetoelastic behavior of the magnetoelastic gel. In this article, an energy minimization approach is followed to find the equilibrium magnetization and strain. We formulate the total energy of the magnetoelastic gel on multiple-length scales and minimize it to obtain these equilibrium magnetization and mechanical strain. We also investigate the effect of particle size and polarization under the framework of energy minimization.

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4

Liang, Xianfeng, Cunzheng Dong, Huaihao Chen, Jiawei Wang, Yuyi Wei, Mohsen Zaeimbashi, Yifan He, Alexei Matyushov, Changxing Sun, and Nianxiang Sun. "A Review of Thin-Film Magnetoelastic Materials for Magnetoelectric Applications." Sensors 20, no. 5 (March 10, 2020): 1532. http://dx.doi.org/10.3390/s20051532.

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Since the revival of multiferroic laminates with giant magnetoelectric (ME) coefficients, a variety of multifunctional ME devices, such as sensor, inductor, filter, antenna etc. have been developed. Magnetoelastic materials, which couple the magnetization and strain together, have recently attracted ever-increasing attention due to their key roles in ME applications. This review starts with a brief introduction to the early research efforts in the field of multiferroic materials and moves to the recent work on magnetoelectric coupling and their applications based on both bulk and thin-film materials. This is followed by sections summarizing historical works and solving the challenges specific to the fabrication and characterization of magnetoelastic materials with large magnetostriction constants. After presenting the magnetostrictive thin films and their static and dynamic properties, we review micro-electromechanical systems (MEMS) and bulk devices utilizing ME effect. Finally, some open questions and future application directions where the community could head for magnetoelastic materials will be discussed.

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5

García-Cervera, Carlos, Martin Kružík, Chun Liu, and Anja Schlömerkemper. "Mini-Workshop: Mathematics of Magnetoelastic Materials." Oberwolfach Reports 13, no. 4 (December 20, 2017): 2909–40. http://dx.doi.org/10.4171/owr/2016/51.

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6

Fang, D. N., Y. P. Wan, and A. K. Soh. "Magnetoelastic fracture of soft ferromagnetic materials." Theoretical and Applied Fracture Mechanics 42, no. 3 (December 2004): 317–34. http://dx.doi.org/10.1016/j.tafmec.2004.09.006.

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7

Kwon, Tae Song, Jong Chul Park, Sang Wook Wu, Chul Koo Kim, and Kyun Nahm. "Magnetoelastic anomaly of cubic antiferromagnetic materials." Physical Review B 49, no. 17 (May 1, 1994): 12270–73. http://dx.doi.org/10.1103/physrevb.49.12270.

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8

Acet, Mehmet. "Magnetoelastic sponges." Nature Materials 8, no. 11 (November 2009): 854–55. http://dx.doi.org/10.1038/nmat2551.

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9

Matsumoto, E., and S. Motogi. "Acoustoelasticity of magnetoelastic materials with orthotropic symmetry." NDT & E International 24, no. 1 (February 1991): 40. http://dx.doi.org/10.1016/0963-8695(91)90691-u.

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10

Ignatchenko, V. A., and L. I. Deich. "Magnetoelastic resonance in disordered zero-magnetostrictive materials." Journal of Magnetism and Magnetic Materials 140-144 (February 1995): 253–54. http://dx.doi.org/10.1016/0304-8853(94)01344-6.

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11

Hoffmann, T. J., and M. Chudzicka-Adamczak. "The Maxwell stress tensor for magnetoelastic materials." International Journal of Engineering Science 47, no. 5-6 (May 2009): 735–39. http://dx.doi.org/10.1016/j.ijengsci.2008.12.004.

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12

Benešová, Barbora, Johannes Forster, Carlos García-Cervera, Chun Liu, and Anja Schlömerkemper. "Analysis of the Flow of Magnetoelastic Materials." PAMM 16, no. 1 (October 2016): 663–64. http://dx.doi.org/10.1002/pamm.201610320.

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13

Bar’yakhtar, V. G., and A. G. Danilevich. "Damping of Magnetoelastic Waves." Ukrainian Journal of Physics 65, no. 10 (October 9, 2020): 912. http://dx.doi.org/10.15407/ujpe65.10.912.

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A general method for constructing a model of the dissipative function describing the relaxation processes induced by the damping of coupled magnetoacoustic waves in magnetically ordered materials has been developed. The obtained model is based on the symmetry of the magnet and describes both exchange and relativistic interactions in the crystal. The model accounts for the contributions of both the magnetic and elastic subsystems to the dissipation, as well asthe relaxation associated with the magnetoelastic interaction. The dispersion law for coupled magnetoelastic waves is calculated in the case of a uniaxial ferromagnet of the “easy axis” type. It is shown that the contribution of the magnetoelastic interaction to dissipative processes can play a significant role in the case of magnetoacoustic resonance.

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14

Saxena, Prashant. "Finite deformations and incremental axisymmetric motions of a magnetoelastic tube." Mathematics and Mechanics of Solids 23, no. 6 (March 14, 2017): 950–83. http://dx.doi.org/10.1177/1081286517697502.

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A thick-walled circular cylindrical tube made of an incompressible magnetoelastic material is subjected to a finite static deformation in the presence of an internal pressure, an axial stretch and an azimuthal or an axial magnetic field. The dependence of the static magnetoelastic deformation on the intensity of the applied magnetic field is analysed for two different magnetoelastic energy density functions. Then, superimposed on this static configuration, incremental axisymmetric motions of the tube and their dependence on the applied magnetic field and deformation parameters are studied. In particular, we show that magnetoelastic coupled waves exist only for particle motions in the azimuthal direction. For particle motion in radial and axial directions, only purely mechanical waves are able to propagate when a magnetic field is absent. The wave speeds as well as the stability of the tube can be controlled by changing the internal pressure, axial stretch and applied magnetic field that demonstrates the applicability of magneto-elastomers as wave guides and vibration absorbers.

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15

Sagasti, Ariane, Verónica Palomares, Jose María Porro, Iñaki Orúe, M. Belén Sánchez-Ilárduya, Ana Catarina Lopes, and Jon Gutiérrez. "Magnetic, Magnetoelastic and Corrosion Resistant Properties of (Fe–Ni)-Based Metallic Glasses for Structural Health Monitoring Applications." Materials 13, no. 1 (December 20, 2019): 57. http://dx.doi.org/10.3390/ma13010057.

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We have performed a study of the magnetic, magnetoelastic, and corrosion resistance properties of seven different composition magnetoelastic-resonant platforms. For some applications, such as structural health monitoring, these materials must have not only good magnetomechanical properties, but also a high corrosion resistance. In the fabricated metallic glasses of composition Fe 73 − x Ni x Cr 5 Si 10 B 12 , the Fe/Ni ratio was varied (Fe + Ni = 73% at.) thus changing the magnetic and magnetoelastic properties. A small amount of chromium ( Cr 5 ) was added in order to achieve the desired good corrosion resistance. As expected, all the studied properties change with the composition of the samples. Alloys containing a higher amount of Ni than Fe do not show magnetic behavior at room temperature, while iron-rich alloys have demonstrated not only good magnetic properties, but also good magnetoelastic ones, with magnetoelastic coupling coefficient as high as 0.41 for x = 0 in the Fe 73 Ni 0 Cr 5 Si 10 B 12 (the sample containing only Fe but not Ni ). Concerning corrosion resistance, we have found a continuous degradation of these properties as the Ni content increases in the composition. Thus, the corrosion potential decreases monotonously from 46.74 mV for the x = 0 , composition Fe 73 Ni 0 Cr 5 Si 10 B 12 to −239.47 mV for the x = 73 , composition Fe 0 Ni 73 Cr 5 Si 10 B 12 .

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16

Cobeño, A. F., A. P. Zhukov, E. Pina, J. M. Blanco, J. Gonzalez, and J. M. Barandiaran. "Sensitive magnetoelastic properties of amorphous ribbon for magnetoelastic sensors." Journal of Magnetism and Magnetic Materials 215-216 (June 2000): 743–45. http://dx.doi.org/10.1016/s0304-8853(00)00275-4.

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17

Vanderveken, Frederic, Jeroen Mulkers, Jonathan Leliaert, Bartel Van Waeyenberge, Bart Sorée, Odysseas Zografos, Florin Ciubotaru, and Christoph Adelmann. "Finite difference magnetoelastic simulator." Open Research Europe 1 (April 19, 2021): 35. http://dx.doi.org/10.12688/openreseurope.13302.1.

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We describe an extension of the micromagnetic finite difference simulation software MuMax3 to solve elasto-magneto-dynamical problems. The new module allows for numerical simulations of magnetization and displacement dynamics in magnetostrictive materials and structures, including both direct and inverse magnetostriction. The theoretical background is introduced, and the implementation of the extension is discussed. The magnetoelastic extension of MuMax3 is freely available under the GNU General Public License v3.

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18

Samourgkanidis, Georgios, Kostantis Varvatsoulis, and Dimitris Kouzoudis. "The Effect of the Thermal Annealing Process to the Sensing Performance of Magnetoelastic Ribbon Materials." Sustainability 13, no. 24 (December 17, 2021): 13947. http://dx.doi.org/10.3390/su132413947.

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The magnetoelastic materials find many practical applications in everyday life like transformer cores, anti-theft tags, and sensors. The sensors should be very sensitive so as to be able to detect minute quantities of miscellaneous environmental parameters, which are very critical for sustainability such as pollution, air quality, corrosion, etc. Concerning the sensing sensitivity, the magnetoelastic material can be improved, even after its production, by either thermal annealing, as this method relaxes the internal stresses caused during manufacturing, or by applying an external DC magnetic bias field during the sensing operation. In the current work, we performed a systematic study on the optimum thermal annealing parameters of magnetoelastic materials and the Metglas alloy 2826 MB3 in particular. The study showed that a 100% signal enhancement can be achieved, without the presence of the bias field, just by annealing between 350 and 450 °C for at least half an hour. A smaller signal enhancement of 15% can be achieved with a bias field but only at much lower temperatures of 450 °C for a shorter time of 20 min. The magnetic hysteresis measurements show that during the annealing process, the material reorganizes itself, changing both its anisotropy energy and magnetostatic energy but in such a way such that the total material energy is approximately conserved.

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19

Scheidler, Justin J., and Marcelo J. Dapino. "Mechanically induced magnetic diffusion in cylindrical magnetoelastic materials." Journal of Magnetism and Magnetic Materials 397 (January 2016): 233–39. http://dx.doi.org/10.1016/j.jmmm.2015.08.074.

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20

Holmes, Hal R., Andrew DeRouin, Samantha Wright, Travor M. Riedemann, Thomas A. Lograsso, Rupak M. Rajachar, and Keat Ghee Ong. "Biodegradation and biocompatibility of mechanically active magnetoelastic materials." Smart Materials and Structures 23, no. 9 (August 14, 2014): 095036. http://dx.doi.org/10.1088/0964-1726/23/9/095036.

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21

Fähnle, Manfred, and Matej Komelj. "Second-order magnetoelastic effects: From the Dirac equation to the magnetic properties of ultrathin epitaxial films for magnetic thin-film applications." International Journal of Materials Research 93, no. 10 (October 1, 2002): 970–73. http://dx.doi.org/10.1515/ijmr-2002-0168.

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Abstract It has always been the endeavour of Professor Kronmüller to combine various methods in order to attain a comprehensive understanding of a physical phenomenon on all relevant scales. In this spirit, we combine the phenomenological nonlinear theory of magnetoelasticity with the relativistic density functional electron theory to describe the magnetoelastic behaviour of epitaxial films. We explain the two already performed cantilever bending beam experiments on the magnetoelasticity and underpin the assumption that second-order magnetoelastic effects are very important for epitaxial Fe films. A complete set of six cantilever experiments is introduced which allows to calculate the intrinsic first- and second-order magnetoelastic constants for cubic materials, and these constants are calculated ab initio for Fe, face-centred cubic Co, Ni, Ni3Fe and CsCl-type CoFe.

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22

Wei, Mengmeng, Kepeng Song, Yuying Yang, Qikun Huang, Yufeng Tian, Xiaotao Hao, and Wei Qin. "Organic Multiferroic Magnetoelastic Complexes." Advanced Materials 32, no. 40 (September 2, 2020): 2003293. http://dx.doi.org/10.1002/adma.202003293.

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23

Chen, Xuwen, Xingyu Ni, Bo Zhu, Bin Wang, and Baoquan Chen. "Simulation and optimization of magnetoelastic thin shells." ACM Transactions on Graphics 41, no. 4 (July 2022): 1–18. http://dx.doi.org/10.1145/3528223.3530142.

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Magnetoelastic thin shells exhibit great potential in realizing versatile functionalities through a broad range of combination of material stiffness, remnant magnetization intensity, and external magnetic stimuli. In this paper, we propose a novel computational method for forward simulation and inverse design of magnetoelastic thin shells. Our system consists of two key components of forward simulation and backward optimization. On the simulation side, we have developed a new continuum mechanics model based on the Kirchhoff-Love thin-shell model to characterize the behaviors of a megnetolelastic thin shell under external magnetic stimuli. Based on this model, we proposed an implicit numerical simulator facilitated by the magnetic energy Hessian to treat the elastic and magnetic stresses within a unified framework, which is versatile to incorporation with other thin shell models. On the optimization side, we have devised a new differentiable simulation framework equipped with an efficient adjoint formula to accommodate various PDE-constraint, inverse design problems of magnetoelastic thin-shell structures, in both static and dynamic settings. It also encompasses applications of magnetoelastic soft robots, functional Origami, artworks, and meta-material designs. We demonstrate the efficacy of our framework by designing and simulating a broad array of magnetoelastic thin-shell objects that manifest complicated interactions between magnetic fields, materials, and control policies.

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24

Szewczyk, Roman. "Generalization of the Model of Magnetoelastic Effect: 3D Mechanical Stress Dependence of Magnetic Permeability Tensor in Soft Magnetic Materials." Materials 13, no. 18 (September 14, 2020): 4070. http://dx.doi.org/10.3390/ma13184070.

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This paper presents a new solution enabling modeling of the mechanical stress tensor dependence of the 3D relative permeability tensor of isotropic material only on the basis of knowledge of the axial stress dependence characteristics. For the proposed model, the concept of principal stresses is utilized. In such a case, the sophisticated system of axial and shear stresses may be reduced to the set of axial stresses in a rotated coordination axes system. As a result, the proposed solution generalizes the explanation of the shape of magnetoelastic characteristics as well as radically extending possibility of the application of the finite elements methods (FEM) to describe sophisticated magnetoelastic systems.

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25

Ostaszewska-Liżewska, Anna, Michał Nowicki, Roman Szewczyk, and Mika Malinen. "A FEM-Based Optimization Method for Driving Frequency of Contactless Magnetoelastic Torque Sensors in Steel Shafts." Materials 14, no. 17 (September 1, 2021): 4996. http://dx.doi.org/10.3390/ma14174996.

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This paper presents a novel finite element method (FEM) of optimization for driving frequency in magneto-mechanical systems using contactless magnetoelastic torque sensors. The optimization technique is based on the generalization of the axial and shear stress dependence of the magnetic permeability tensor. This generalization creates a new possibility for the determination of the torque dependence of a permeability tensor based on measurements of the axial stress on the magnetization curve. Such a possibility of quantitative description of torque dependence of a magnetic permeability tensor has never before been presented. Results from the FEM-based modeling method were validated against a real magnetoelastic torque sensor. The sensitivity characteristics of the model and the real sensor show a maximum using a driving current of similar frequency. Consequently, the proposed method demonstrates the novel possibility of optimizing magnetoelastic sensors for automotive and industrial applications.

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26

Jiang, Yinhuan, Chuanping Zhou, Ban Wang, and Liqun Wu. "Magnetoelastic Coupled Wave Diffraction and Dynamic Stress Intensity Factor in Graded Piezomagnetic Composites with a Cylindrical Aperture." Materials 13, no. 3 (February 3, 2020): 669. http://dx.doi.org/10.3390/ma13030669.

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A theoretical method is developed to study the magnetoelastic coupled wave and dynamic stress intensity around a cylindrical aperture in exponential graded piezomagnetic materials. By employing the decoupling technique, the coupled magnetoelastic governing equations are decomposed. Then the analytic solutions of elastic wave fields and magnetic fields are presented by using the wave function expansion method. By satisfying the boundary conditions of the aperture, the mode coefficients, and the analytic solutions of dynamic stress intensity factors are determined. The numerical examples of the dynamic stress intensity factor near the aperture are presented. The numerical results indicate that the incident wave number, the piezomagnetic properties, and the nonhomogeneous parameter of materials highly influence the dynamic stress around the aperture.

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27

Dorfmann, A., and R. W. Ogden. "Magnetoelastic modelling of elastomers." European Journal of Mechanics - A/Solids 22, no. 4 (July 2003): 497–507. http://dx.doi.org/10.1016/s0997-7538(03)00067-6.

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28

Wang, W. Q., L. Wang, G. X. Li, W. D. Hutchison, M. F. Md Din, S. J. Campbell, Z. X. Cheng, and J. L. Wang. "Magnetoelastic coupling in DyFe11.4Nb0.6." Intermetallics 125 (October 2020): 106864. http://dx.doi.org/10.1016/j.intermet.2020.106864.

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29

Radtke, Guillaume, Andrés Saúl, Hanna A. Dabkowska, Myron B. Salamon, and Marcelo Jaime. "Magnetic nanopantograph in the SrCu2(BO3)2 Shastry–Sutherland lattice." Proceedings of the National Academy of Sciences 112, no. 7 (February 2, 2015): 1971–76. http://dx.doi.org/10.1073/pnas.1421414112.

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Magnetic materials having competing, i.e., frustrated, interactions can display magnetism prolific in intricate structures, discrete jumps, plateaus, and exotic spin states with increasing applied magnetic fields. When the associated elastic energy cost is not too expensive, this high potential can be enhanced by the existence of an omnipresent magnetoelastic coupling. Here we report experimental and theoretical evidence of a nonnegligible magnetoelastic coupling in one of these fascinating materials, SrCu2(BO3)2 (SCBO). First, using pulsed-field transversal and longitudinal magnetostriction measurements we show that its physical dimensions, indeed, mimic closely its unusually rich field-induced magnetism. Second, using density functional-based calculations we find that the driving force behind the magnetoelastic coupling is the CuOCu^ superexchange angle that, due to the orthogonal Cu2+ dimers acting as pantographs, can shrink significantly (0.44%) with minute (0.01%) variations in the lattice parameters. With this original approach we also find a reduction of ∼10% in the intradimer exchange integral J, enough to make predictions for the highly magnetized states and the effects of applied pressure on SCBO.

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Song, Zhao, Zongbin Li, Bo Yang, Haile Yan, Claude Esling, Xiang Zhao, and Liang Zuo. "Large Low-Field Reversible Magnetocaloric Effect in Itinerant-Electron Hf1−xTaxFe2 Alloys." Materials 14, no. 18 (September 11, 2021): 5233. http://dx.doi.org/10.3390/ma14185233.

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First-order isostructural magnetoelastic transition with large magnetization difference and controllable thermal hysteresis are highly desirable in the development of high-performance magnetocaloric materials used for energy-efficient and environmental-friendly magnetic refrigeration. Here, we demonstrate large magnetocaloric effect covering the temperature range from 325 K to 245 K in Laves phase Hf1−xTaxFe2 (x = 0.13, 0.14, 0.15, 0.16) alloys undergoing the magnetoelastic transition from antiferromagnetic (AFM) state to ferromagnetic (FM) state on decreasing the temperature. It is shown that with the increase of Ta content, the nature of AFM to FM transition is gradually changed from second-order to first-order. Based on the direct measurements, large reversible adiabatic temperature change (ΔTad) values of 2.7 K and 3.4 K have been achieved under a low magnetic field change of 1.5 T in the Hf0.85Ta0.15Fe2 and Hf0.84Ta0.16Fe2 alloys with the first-order magnetoelastic transition, respectively. Such remarkable magnetocaloric response is attributed to the rather low thermal hysteresis upon the transition as these two alloys are close to intermediate composition point of second-order transition converting to first-order transition.

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Bieńkowski, Adam, Roman Szewczyk, Jacek Salach, and Roman Kolano. "Differential Magnetoelastic Compressive Force Sensor Utilizing Two Amorphous Alloy Ring Cores." Solid State Phenomena 154 (April 2009): 23–27. http://dx.doi.org/10.4028/www.scientific.net/ssp.154.23.

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Paper presents the results of investigation on functional characteristics of magnetoelastic compressive force sensor utilizing two Fe81Si4B15 amorphous alloy ring-shaped cores. Uniform distribution of stresses in one of two cores was achieved owing to special non-magnetic backings. Signal from sensing coils of cores was connected to differential amplifier, whereas sine wave voltage signal was applied to magnetizing circuit. High stress sensitivity of developed sensor was indicated together with expected reduction of temperature sensitivity of magnetoelastic sensor. These results confirm, that differential configuration of magnetoelastic sensor is suitable for practical application in sensors development.

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32

Ferenc, Jarosław, Maciej Kowalczyk, Tatiana Erenc-Sędziak, Xiu Bing Liang, Gabriel Vlasák, and Tadeusz Kulik. "Magnetic Anisotropy of Nanocrystalline HITPERM-Type Alloys and its Correlation with Application." Solid State Phenomena 154 (April 2009): 169–73. http://dx.doi.org/10.4028/www.scientific.net/ssp.154.169.

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Structure as well as magnetic and magnetoelastic properties of nanocrystalline (Fe,Co)-(Hf,Zr)-Cu-B alloys (HITPERM-type) were investigated in order to find out which factors are responsible for the magnetic hardening of these magnetically soft materials. Magnetoelastic anisotropy, caused by the presence of cobalt, was found to play the predominant role in the observed increase of coercive field. On this basis, guidelines on chemical composition and crystallisation process selection were suggested for two fields of application: soft magnetic cores and sensors or actuators cores.

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33

Bar’yakhtar, V. G., and A. G. Danilevich. "Magnetoelastic Waves in Ferromagnets in the Vicinity of Lattice Structural Phase Transitions." Ukrainian Journal of Physics 63, no. 9 (September 24, 2018): 836. http://dx.doi.org/10.15407/ujpe63.9.836.

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The dispersion laws for coupled magnetoelastic waves in ferromagnets with uniaxial or cubic symmetry have been calculated. The features of obtained dispersion laws in the vicinity of spin-reorientation phase transitions are analyzed. The interaction between elastic and spin waves is shown to depend on the direction of the ferromagnet magnetic moment. The influence of the magnetoelastic interaction on the dispersion law of quasispin waves in the degenerate ground state of a uniaxial “easy plane” ferromagnet is studied. The results of calculations show that the magnetoelastic interaction eliminates the degeneration and leads to the appearance of a magnetoacoustic gap in the ferromagnet spectrum. The behavior of the spectra of coupled magnetoelastic waves in the vicinity of lattice phase transitions, namely, in the vicinity of martensitic phase transformations in materials with the shape memory effect, is analyzed. The obtained results are used to interpret experimental data obtained for the Ni–Mn–Ga alloy. The phenomenon of a drastic decrease of the elastic moduli for this alloy, when approaching the martensitic phase transition point is explained theoretically. It is shown that the inhomogeneous magnetostriction is the main factor affecting the elastic characteristics of the material concerned. A model dissipative function describing the relaxation processes associated with a damping of coupled magnetoelastic waves in ferromagnets with cubic or uniaxial symmetry is developed. It takes the symmetry of a ferromagnet into account and describes both the exchange and relativistic interactions in the crystal.

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34

Magen, C., L. Morellon, P. A. Algarabel, C. Marquina, and M. R. Ibarra. "Magnetoelastic behaviour of Gd5Ge4." Journal of Physics: Condensed Matter 15, no. 14 (March 31, 2003): 2389–97. http://dx.doi.org/10.1088/0953-8984/15/14/314.

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35

Nowak, Paweł. "Magnetoelastic Effect Detection with the Usage of Eddy Current Tomography." Materials 12, no. 3 (January 22, 2019): 346. http://dx.doi.org/10.3390/ma12030346.

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The possibility of application of the eddy current tomography setup to measure the small permeability variations caused by magnetoelastic effect was presented. A ferromagnetic steel sample was prepared for applying wall stresses and measured for 30 MPa stresses. The Finite Element Method (FEM) was utilized to conduct numerical forward tomography transformation for samples of known permeability. Developed forward tomography transformation was applied for single variable inverse tomography transformation, utilized for determining magnetic permeability. This confirmed the possibility of the application of eddy current tomography for quantitative measurements of magnetoelastic effect in samples of known geometry.

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36

Nowicki, Michał. "Stress Dependence of the Small Angle Magnetization Rotation Signal in Commercial Amorphous Ribbons." Materials 12, no. 18 (September 9, 2019): 2908. http://dx.doi.org/10.3390/ma12182908.

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The results of the investigation on tensile stress dependence of the SAMR (small angle magnetization rotation) signal in soft magnetic amorphous ribbons are presented. Exemplary results for commercially available, negatively magnetostrictive 2705M, 2714A, and 6030D amorphous ribbons show significant stress dependence, in contrast to positively magnetostrictive 2826MB alloy. The magnetoelastic hysteresis of the obtained characteristics is compared, as well as the influence of the biasing H field and supply current variations. Based on the results, 2705M alloy with near-zero negative magnetostriction is proposed as best suited for a SAMR-based, magnetoelastic force sensor.

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37

Moskvin, Alexander. "Structure–Property Relationships for Weak Ferromagnetic Perovskites." Magnetochemistry 7, no. 8 (August 3, 2021): 111. http://dx.doi.org/10.3390/magnetochemistry7080111.

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Despite several decades of active experimental and theoretical studies of rare-earth orthoferrites, the mechanism of the formation of their specific magnetic, magnetoelastic, optical, and magneto-optical properties remains a subject of discussion. This paper provides an overview of simple theoretical model approaches to quantitatively describing the structure–property relationships—in particular, the interplay between FeO6 octahedral deformations/rotations and the main magnetic and optic characteristics, such as Néel temperature, overt and hidden canting of magnetic sublattices, magnetic and magnetoelastic anisotropy, and optic and photoelastic anisotropy.

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38

Szewczyk, Roman, Jacek Salach, and Adam Bieńkowski. "Modeling of Magnetoelastic Materials for Force and Torque Sensors." Solid State Phenomena 144 (September 2008): 124–29. http://dx.doi.org/10.4028/www.scientific.net/ssp.144.124.

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The paper presents a new idea of extension of the Jiles-Atherton-Sablik model for modeling of the influence of mechanical stresses on magnetic hysteresis loops of amorphous alloys. In the extended model changes of parameter k are considered during the magnetization and the influence of stresses on eight parameters of the Jiles-Atherton-Sablik model is taken into account. Verification of the model was carried out on the base of experimental results obtained for Fe40Ni38Mo4B18 amorphous alloy subjected to both stress from external compressive force as well as shearing stresses from torque. In the experiment uniform stress distribution was achieved in both cases due to special mechanical system of backings. Evolutionary strategies were used in conjunction with gradient optimization for calculation of the model parameters. Results of simulation are in good agreement with experimental findings. As a result the extended Jiles- Atherton-Sablik model enables modeling of the magnetoelastic characteristics of amorphous materials for mechatronic inductive components such as compressive stress and torque sensors.

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Meyers, Kaylee Marie, and Keat Ghee Ong. "Magnetoelastic Materials for Monitoring and Controlling Cells and Tissues." Sustainability 13, no. 24 (December 10, 2021): 13655. http://dx.doi.org/10.3390/su132413655.

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Advances in cell and tissue therapies are slow to be implemented in the clinic due to the limited standardization of safety and quality control techniques. Current approaches for monitoring cell and tissue manufacturing processes are time and labor intensive, costly, and lack commercial scalability. One method to improving in vitro manufacturing processes includes utilizing the coupled magnetic and mechanical properties of magnetoelastic (ME) materials as passive and wireless sensors and actuators. Specifically, ME materials can be used in quantifying cell adhesion, detecting contamination, measuring biomarkers, providing biomechanical stimulus, and enabling cell detachment in bioreactors. This review outlines critical design considerations for ME systems and summarizes recent developments in utilizing ME materials for sensing and actuation in cell and tissue engineering.

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Santi, L., J. C. Denardin, M. R. Dotto, L. F. Schelp, and R. L. Sommer. "Barkhausen noise measurements in materials with vanishing magnetoelastic anisotropies." Journal of Applied Physics 91, no. 10 (2002): 8201. http://dx.doi.org/10.1063/1.1453942.

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Crum, R. S., J. P. Domann, G. P. Carman, and V. Gupta. "Propagation and dispersion of shock waves in magnetoelastic materials." Smart Materials and Structures 26, no. 12 (November 15, 2017): 125027. http://dx.doi.org/10.1088/1361-665x/aa973d.

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Lin, Chun-Bo, and Hsien-Mou Lin. "The magnetoelastic problem of cracks in bonded dissimilar materials." International Journal of Solids and Structures 39, no. 10 (May 2002): 2807–26. http://dx.doi.org/10.1016/s0020-7683(02)00153-1.

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Ludwig, A., M. Tewes, S. Glasmachers, M. Löhndorf, and E. Quandt. "High-frequency magnetoelastic materials for remote-interrogated stress sensors." Journal of Magnetism and Magnetic Materials 242-245 (April 2002): 1126–31. http://dx.doi.org/10.1016/s0304-8853(01)00979-9.

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Borisov, A. M., S. D. Levintov, V. A. Plachkova, V. V. Shuldyakov, and M. F. Belyaev. "Experimental determination of the magnetoelastic sensitivity of ferromagnetic materials." Measurement Techniques 34, no. 8 (August 1991): 814–16. http://dx.doi.org/10.1007/bf00981796.

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Shen, W. C., L. L. Lin, C. Y. Shen, S. Xing, and Z. B. Pan. "Dynamic magnetoelastic properties of TbxHo0.9−xNd0.1(Fe0.8Co0.2)1.93/epoxy composites." Materials Science-Poland 37, no. 2 (June 1, 2019): 257–64. http://dx.doi.org/10.2478/msp-2019-0027.

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AbstractTbxHo0.9−xNd0.1(Fe0.8Co0.2)1.93/epoxy (0 ⩽ x ⩽ 0.40) composites are fabricated in the presence of a magnetic field. The structural and dynamic magnetoelastic properties are investigated as a function of both magnetic bias field Hbias and frequency f at room temperature. The composites are formed as textured orientation structure of 1–3 type with 〈1 0 0〉 preferred orientation for x ⩽ 0.10 and 〈1 1 1〉-orientation for x ⩾ 0.25. The composites generally possess insignificant eddy-current losses for frequency up to 50 kHz, and their dynamic magnetoelastic properties depend greatly on Hbias. The elastic modulus (E3H and E3B) shows a maximum negative ΔE effect, along with a maximum d33, at a relatively low Hbias ~ 80 kA/m, contributed by the maximum motion of non-180° domain-wall. The 1–3 type composite for x ⩾ 0.25 shows an enhanced magnetoelastic effect in comparison with 0 to 3 type one, which can be principally ascribed to its easy magnetization direction (EMD) towards 〈1 1 1〉 axis and the formation of 〈1 1 1〉-texture-oriented structure in the composite. These attractive dynamic magnetoelastic properties, e.g., the low magnetic anisotropy and d33,max as high as 2.0 nm/A at a low Hbias ~ 80 kA/m, along with the light rare-earth Nd element existing in insulating polymer matrix, would make it a promising magnetostrictive material system.

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Liang, Yan, Xingshuai Lv, and Thomas Frauenheim. "Carrier doping-induced strong magnetoelastic coupling in 2D lattice." Nanoscale 14, no. 8 (2022): 3261–68. http://dx.doi.org/10.1039/d1nr08459c.

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Kornienkov, B. A., and B. V. Molotilov. "Magnetoelastic effects in amorphous alloys." Steel in Translation 43, no. 3 (March 2013): 157–59. http://dx.doi.org/10.3103/s0967091213030078.

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Čermák, Petr, Astrid Schneidewind, Benqiong Liu, Michael Marek Koza, Christian Franz, Rudolf Schönmann, Oleg Sobolev, and Christian Pfleiderer. "Magnetoelastic hybrid excitations in CeAuAl3." Proceedings of the National Academy of Sciences 116, no. 14 (March 20, 2019): 6695–700. http://dx.doi.org/10.1073/pnas.1819664116.

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Nearly a century of research has established the Born–Oppenheimer approximation as a cornerstone of condensed-matter systems, stating that the motion of the atomic nuclei and electrons may be treated separately. Interactions beyond the Born–Oppenheimer approximation are at the heart of magneto-elastic functionalities and instabilities. We report comprehensive neutron spectroscopy and ab initio phonon calculations of the coupling between phonons, CEF-split localized 4f electron states, and conduction electrons in the paramagnetic regime ofCeAuAl3, an archetypal Kondo lattice compound. We identify two distinct magneto-elastic hybrid excitations that form even though all coupling constants are small. First, we find a CEF–phonon bound state reminiscent of the vibronic bound state (VBS) observed in other materials. However, in contrast to an abundance of optical phonons, so far believed to be essential for a VBS, the VBS inCeAuAl3arises from a comparatively low density of states of acoustic phonons. Second, we find a pronounced anticrossing of the CEF excitations with acoustic phonons at zero magnetic field not observed before. Remarkably, both magneto-elastic excitations are well developed despite considerable damping of the CEFs that arises dominantly by the conduction electrons. Taking together the weak coupling with the simultaneous existence of a distinct VBS and anticrossing in the same material in the presence of damping suggests strongly that similarly well-developed magneto-elastic hybrid excitations must be abundant in a wide range of materials. In turn, our study of the excitation spectra ofCeAuAl3identifies a tractable point of reference in the search for magneto-elastic functionalities and instabilities.

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Klier, Tomáš, Tomáš Mícka, Michal Polák, and Milan Hedbávný. "Overview of the modified magnetoelastic method applicability." ACTA IMEKO 10, no. 3 (September 30, 2021): 167. http://dx.doi.org/10.21014/acta_imeko.v10i3.1071.

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<p class="Abstract">A requirement of axial force determination in important structural elements of a building or engineering structure during its construction or operational state is very frequent in technical practice. In civil engineering practice, five experimental techniques are usually used for evaluation of axial tensile forces in these elements. Each of them has its advantages and disadvantages. One of these methods is the magnetoelastic method, that can be used, for example, on engineering structures for experimental determination of the axial forces in prestressed structural elements made of ferromagnetic materials, e.g., prestressed bars, wires and strands. The article presents general principles of the magnetoelastic method, the magnetoelastic sensor layout and actual information and knowledge about practical application of the new approach based on the magnetoelastic principle on prestressed concrete structures. Subsequently, recent results of the experimental verification and the in-situ application of the method are described in the text. The described experimental approach is usable not only for newly built structures but in particular for existing ones. Furthermore, this approach is the only one effectively usable experimental method for determination of the prestressed force on existing prestressed concrete structures in many cases in the technical practice.</p>

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Prokeš, K., F. Honda, G. Oomi, L. Havela, A. V. Andreev, V. Sechovský, A. A. Menovsky, and F. R. de Boer. "Magnetoelastic phenomena in UNiGa." Journal of Magnetism and Magnetic Materials 184, no. 3 (May 1998): 369–71. http://dx.doi.org/10.1016/s0304-8853(97)00254-0.

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