Magnetostrictive Ni-Mn-Based Heusler Alloys

Chernenko, V.A.

doi:10.1016/b978-0-12-815732-9.00050-4

Cited by 9 publications

(10 citation statements)

References 117 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Magnetic Shape Memory Alloys (MSMAs) are mostly Heusler-type alloys exhibiting MT and a conventional SME, as well as, due to their magnetic nature, Large Magnetic Field Induced Strains (MFIS) either as a result of microstructural changes in the martensitic state or triggered by the MT [4,14]. As a consequence, a possible classification of the Heusler-type MSMAs can be established by dividing them in two groups: Ferromagnetic (FSMAs) and Metamagnetic (MetaMSMAs) Shape Memory Alloys [4,15].…”

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

“…In the martensitic state they show a highly mobile twin microstructure with the twinning stress which can be varied down to about 0.05 MPa [16]. Due to a strong magnetoelastic coupling in FSMAs, the application of an external field close to the anisotropy field of the compound can produce equivalent uniaxial stress values of 1-3 MPa, large enough to drive the twin rearrangements resulting in the aforementioned large MFIS [4]. The schematic behavior of a FSMA depicted in Figure 1 shows an operation cycle of a single crystalline FSMA sample usually employed in commercially available devices.…”

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

“…The magnetic field triggered MT gives rise to the large MFIS effect [21] or to the giant inverse magnetocaloric effect (IMCE) [22]. Whereas the study of the MFIS effect in these alloys is still at its infancy [4], the IMCE is currently subject of intensive world-wide investigations (see [15] and references therein) where, as in case of FSMAs, the composition, crystal and magnetic structures play a crucial role.…”

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

“…Magnetic shape memory alloys (MSMAs) are an interesting class of smart materials exhibiting the martensitic transformation and/or twinning induced large macroscopic deformations upon the application of pertinent stimuli, such as temperature, stress and/or magnetic field (see, e.g., [1][2][3][4] and references therein). Since these deformations are rapid and contactless, these kinds of materials are being extensively investigated for plenty of potential applications [5,6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Neutron Scattering as a Powerful Tool to Investigate Magnetic Shape Memory Alloys: A Review

Río-López

Lázpita

Salazar

et al. 2021

Metals

Self Cite

View full text Add to dashboard Cite

Magnetic shape memory alloys (MSMAs) are an interesting class of smart materials characterized by undergoing macroscopic deformations upon the application of a pertinent stimulus: temperature, stress and/or external magnetic fields. Since the deformation is rapid and contactless, these materials are being extensively investigated for a plethora of applications, such as sensors and actuators for the medical, automotive and space industries, energy harvesting and damping devices, among others. These materials also exhibit a giant magnetocaloric effect, whereby they are very promising for magnetic refrigeration. The applications in which they can be used are extremely dependent on the material properties, which are, in turn, greatly conditioned by the structure, atomic ordering and magnetism of a material. Particularly, exploring the material structure is essential in order to push forward the current application limitations of the MSMAs. Among the wide range of available characterization tools, neutron scattering techniques stand out in acquiring advanced knowledge about the structure and magnetism of these alloys. Throughout this manuscript, a comprehensive review about the characterization of MSMAs using neutron techniques is presented. Several elastic neutron scattering techniques will be explained and exemplified, covering neutron imaging techniques—such as radiography, tomography and texture diffractometry; diffraction techniques—magnetic (polarized neutron) diffraction, powder neutron diffraction and single crystal neutron diffraction, reflectometry and small angle neutron scattering. This will be complemented with a few examples where inelastic neutron scattering has been employed to obtain information about the phonon dispersion in MSMAs.

show abstract

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

Section: Magnetic Shape Memory Alloys Msmasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Neutron Scattering as a Powerful Tool to Investigate Magnetic Shape Memory Alloys: A Review

Río-López

Lázpita

Salazar

et al. 2021

Metals

Self Cite

View full text Add to dashboard Cite

show abstract

“…These materials, called ferromagnetic shape memory alloys (FSMAs), attract a considerable attention of researchers and engineers due to a giant magnetic field induced strain (MFIS) they reveal in a single crystalline form. MFIS of 6% and 12% under a magnetic field of the order of 0.1 T can be observed in the 5 M martensite, exhibited by the most to-date elaborated Ni–Mn–Ga compositions, and in the 2 M martensite of the heavily doped Ni–Mn–Ga analogs, respectively 3 – 8 . Such a huge magnetostrain effect (two orders of magnitude larger than a conventional magnetostriction) offers innovative technical solutions for the applications in actuators, sensors, vibrating energy harvesters etc.…”

Section: Introductionmentioning

confidence: 95%

Framework of magnetostrain responsive Ni–Mn–Ga microparticles driving magnetic field induced out-of-plane actuation of laminate composite

Han

Chiu

Tahara

et al. 2023

Sci Rep

Self Cite

View full text Add to dashboard Cite

Ni–Mn–Ga single crystals (SC) exhibiting a giant magnetic field induced strain (MFIS), resulting from twin boundaries rearrangements, are excellent materials for novel actuators although enhanced brittleness and high costs are remaining the issues for applications. In polycrystalline state Ni–Mn–Ga alloys show small MFIS due to grain boundary constraints. By simple size reduction of the mentioned materials it is hardly possible to create quasi-two-dimensional MFIS actuators on the microscale with a pertinent out-of-plane performance. In pursuit of the trend for next generation materials and functions by design, in the present work we have developed a laminate composite as a prototype of microactuator with the out-of-plane stroke being driven by a framework of magnetostrain responsive Ni–Mn–Ga microparticles. The laminate consisted of the layer of crystallographically oriented Ni–Mn–Ga semi-free SC microparticles sandwiched between bonding polymer and Cu foils. Such design provided a particles isolation with a minimum constraint condition from the polymer. MFIS of the individual particles and the whole laminate composite was investigated by X-ray micro-CT 3D imaging. Both particles and laminate exhibited the same recoverable out-of-plane stroke produced by the particles´ MFIS of around 3% under 0.9 T. The developed microactuator design is promising for applications in the areas of micro-robotics, optical image stabilization in cameras, pumps for microfluidics etc.

show abstract

Coupled magneto-mechanical response of laminate composites comprising a layer of Ni-Mn-Ga microparticles

Han,

Chiu,

Tahara

et al. 2024

Acta Materialia

View full text Add to dashboard Cite

Magnetostrictive Ni-Mn-Based Heusler Alloys

Cited by 9 publications

References 117 publications

Neutron Scattering as a Powerful Tool to Investigate Magnetic Shape Memory Alloys: A Review

Neutron Scattering as a Powerful Tool to Investigate Magnetic Shape Memory Alloys: A Review

Framework of magnetostrain responsive Ni–Mn–Ga microparticles driving magnetic field induced out-of-plane actuation of laminate composite

Coupled magneto-mechanical response of laminate composites comprising a layer of Ni-Mn-Ga microparticles

Contact Info

Product

Resources

About