3D Printing Technologies for Fabrication of Magnetic Materials Based on Metal–Polymer Composites: A Review

Mazeeva, Alina; Masaylo, Dmitriy; Razumov, Nikolay; Konov, Gleb; Popovich, Anatoliy

doi:10.3390/ma16216928

Cited by 3 publications

(1 citation statement)

References 163 publications

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“…Therefore, a compromise between eddy current losses and fill factor has to be made. The topic of fill factor is also especially interesting, as research on soft-magnetic metal-polymer composites has shown a strong non-linear connection between fill factor and magnetic properties as well as losses [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Klein,

May,

Nienhaus

2024

Actuators

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Additively manufactured soft-magnetic components are inherently bulky leading to significant eddy current losses when applied to electrical machines. Prior works have addressed this issue by implementing structures based on the Hilbert space-filling curve which include eddy current suppressing gaps, thereby reducing the fill factor of the soft-magnetic component. The present research aims at investigating a number of space-filling curves in addition to sheets in order to find the optimal eddy current suppressing structure from an electromagnetic point of view. By means of both analysis and finite-element simulation, it was shown that sheets are superior at minimizing eddy current losses while space-filling curves excel at maximizing the fill factor.

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Section: Introductionmentioning

confidence: 99%

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Klein,

May,

Nienhaus

2024

Actuators

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Encapsulation of Immobilized β-Glucosidase with Calcium Metal–Organic Frameworks for Enhanced Stability in Hydrolysis of Cellobiose

Xu,

Liu,

Wang

et al. 2024

Langmuir

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β-Glucosidase (β-G) holds promising applications in various fields, such as biomass energy, food, pharmaceuticals, and environmental protection, yet its industrial application is still limited by issues of stability and recycling. Herein, we first immobilized β-G onto the surface of magnetic chitosan nanoparticles (MCS/β-G) through adsorption methods. Subsequently, utilizing the metal−organic framework (MOF), CaBDC, which possesses good stability under acidic conditions, we encapsulated MCS/β-G. The resulting biocatalyst (MCS/β-G@CaBDC) exhibited excellent activity and recyclability. MCS/β-G@CaBDC can convert 91.5% of cellobiose to glucose in 60 min and maintained 81.9% activity after 10 cycles. The apparent K m value of MCS/β-G@CaBDC was 0.148 mM, lower than free β-G (0.166 mM) and MCS/β-G (0.173 mM). The CaBDC layer increased the mass transfer resistance of the reaction but also triggered structural rearrangement of β-G during the encapsulation process. This resulted in the β-sheet content rising to 68.4%, which, in turn, contributed to enhancing the rigidity of β-G. Moreover, the saturated magnetic strength of this biocatalyst could reach 37.3 emu/g, facilitating its magnetic recovery. The biocatalyst prepared in this study exhibits promising application prospects, and the immobilization method can provide valuable insights into the field of enzyme immobilization.

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Multi-Metal Additive Manufacturing by Extrusion-Based 3D Printing for Structural Applications: A Review

Mazeeva,

Masaylo,

Konov

et al. 2024

Metals

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Additive manufacturing (AM) is a rapidly developing technical field that is becoming an irreplaceable tool to fabricate unique complex-shaped parts in aerospace, the automotive industry, medicine, and so on. One of the most promising directions for AM application is the design and production of multi-material components with different types of chemical, structural, and architectural gradients that also promote a breakthrough in bio-inspired approaches. At the moment there are a lot of different AM techniques involving various types of materials. This paper represents a review of extrusion-based AM techniques using metal-polymer composites for structural metal parts fabrication. These methods are significantly cheaper than powder bed fusion (PBF) and directed energy deposition (DED) techniques, though have a lower degree of part detail. Thus, they can be used for low-scale production of the parts that are not rentable to produce with PBF and DED. Multi-material structures application in machinery, main aspects of feedstock preparation, the subsequent steps of extrusion-based 3D printing, and the following treatment for manufacturing single-metallic and multi-metallic parts are considered. Main challenges and recommendations are also discussed. Multi-metallic extrusion-based 3D printing is just a nascent trend requiring further wide investigation, though even now it shows pretty interesting results.

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3D Printing Technologies for Fabrication of Magnetic Materials Based on Metal–Polymer Composites: A Review

Cited by 3 publications

References 163 publications

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

Encapsulation of Immobilized β-Glucosidase with Calcium Metal–Organic Frameworks for Enhanced Stability in Hydrolysis of Cellobiose

Multi-Metal Additive Manufacturing by Extrusion-Based 3D Printing for Structural Applications: A Review

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