Complex Concentrated Alloys: A Cornucopia of Possible Structural and Functional Applications

Klenam, Desmond; Egowan, Gaston; Bodunrin, Michael Oluwatosin; Merwe, J.W. van der; Rahbar, Nima; Soboyejo, Winston O.

doi:10.1016/b978-0-12-822944-6.00056-6

Cited by 6 publications

(3 citation statements)

References 346 publications

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“…SMMs are commonly used in applications where efficient magnetic flux circulation and low energy losses are essential, such as transformers, electric motors, and magnetic sensors. According to the international standard, SMMs are those materials with coercivity less than 1 kA/m [ 62 , 63 , 64 ].…”

Section: Overview Of Soft Magnetic Materialsmentioning

confidence: 99%

Recent Advances in Additive Manufacturing of Soft Magnetic Materials: A Review

Vargas

Stornelli

Folgarait³

et al. 2023

Materials

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Additive manufacturing (AM) is an attractive set of processes that are being employed lately to process specific materials used in the fabrication of electrical machine components. This is because AM allows for the preservation or enhancement of their magnetic properties, which may be degraded or limited when manufactured using other traditional processes. Soft magnetic materials (SMMs), such as Fe–Si, Fe–Ni, Fe–Co, and soft magnetic composites (SMCs), are suitable materials for electrical machine additive manufacturing components due to their magnetic, thermal, mechanical, and electrical properties. In addition to these, it has been observed in the literature that other alloys, such as soft ferrites, are difficult to process due to their low magnetization and brittleness. However, thanks to additive manufacturing, it is possible to leverage their high electrical resistivity to make them alternative candidates for applications in electrical machine components. It is important to highlight the significant progress in the field of materials science, which has enabled the development of novel materials such as high-entropy alloys (HEAs). These alloys, due to their complex chemical composition, can exhibit soft magnetic properties. The aim of the present work is to provide a critical review of the state-of-the-art SMMs manufactured through different AM technologies. This review covers the influence of these technologies on microstructural changes, mechanical strengths, post-processing, and magnetic parameters such as saturation magnetization (MS), coercivity (HC), remanence (Br), relative permeability (Mr), electrical resistivity (r), and thermal conductivity (k).

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Section: Overview Of Soft Magnetic Materialsmentioning

confidence: 99%

Recent Advances in Additive Manufacturing of Soft Magnetic Materials: A Review

Vargas

Stornelli

Folgarait³

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…Soft-magnetic particles are typically characterized as having a low coercivity resulting in particles which are easily magnetized and demagnetize. 352 Additionally, soft-magnetic particles are actuated using an alternating magnetic field, which is a magnetic field that changes its amplitude with time. Commonly utilized soft-magnetic particles, which are able to demonstrate shape transformation under alternating magnetic fields, include ferromagnetic nanoparticles such as magnetic IONP 189 and maghemite gamma-Fe 2 O 3 .…”

Section: Magnetic Fieldsmentioning

confidence: 99%

“…353 Conversely, hardmagnetic particles are difficult to magnetize and demagnetize having a high coercivity. 352 Hard-magnetic particles are capable of response to static magnetic fields (i.e., permanent magnet 354 ), and have recently garnered more interest for its ability to be re-programmed and observe large shape deformations. 355 Frequently studied hard-magnetic particles include neodymium-iron-boron (NdFeB) and Ni nanowires (NiNW).…”

Section: Magnetic Fieldsmentioning

confidence: 99%