Recent Advances in Soft Magnetic Actuators and Sensors using Magnetic Particles

Song, Hyeonseo; Lee, Hajun; Kim, Jung-Hyo; Kim, Jiyun

doi:10.4150/kpmi.2021.28.6.509

Cited by 1 publication

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“…In recent years, there has been a surge in interest in soft response-stimulated materials, driven by their diverse applications in soft robotics, reconstruction functions, biomedical machines, , and morphable electronics, , among others. Comprising active fillers, various polymers, and elastic matrices, soft response-stimulated materials dynamically respond to external stimuli such as magnetic fields, heat, and light. , Magnetically responsive materials have earned distinction because of their rapid and reversible reactions and their ability to enable remote, tether-free actuation. Their potential for precise shape programming, locomotion, and remote heat generation underscores the suitability of magnetically responsive materials for applications ranging from soft robotics to drug delivery systems.…”

Section: Introductionmentioning

confidence: 99%

Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites

Koo,

Kwon,

Park

et al. 2024

ACS Appl. Mater. Interfaces

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Recently, there has been an escalating demand for advanced materials with superior magnetic properties, especially in the actuator domain. High coercivity (H ci ), an essential magnetic property, is pivotal for programmable shape changes in magnetic actuators and profoundly affects their performance. In this study, a new Sm 2 Fe 17−x Cu x N 3 magnet with a high H ci was achieved by modifying the temperature of the reduction−diffusion process� lowering it from 900 to 700 °C through the introduction of Cu and finer control over the structure and morphology of the Sm 2 Fe 17−x Cu x N 3 magnetic component within the actuator composite. Consequently, the Sm 2 Fe 17−x Cu x N 3 magnet demonstrated a remarkable H ci of 11.5 kOe, eclipsing the value of 6.9 kOe attained by unalloyed Sm 2 Fe 17 N 3 at reduced temperatures. By capitalizing on the enhanced magnetic properties of the Sm 2 Fe 17−x Cu x N 3 composite and incorporating poly(ethylene glycol) into the elastomer matrix, we successfully fabricated a robust actuator. This innovative approach harnesses the strengths of hard magnets as actuators, offering stability under high-temperature conditions, precision control, longevity, wireless functionality, and energy efficiency, highlighting the vast potential of hard magnets for a range of applications.

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Section: Introductionmentioning

confidence: 99%

Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites

Koo,

Kwon,

Park

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

Recent Advances in Soft Magnetic Actuators and Sensors using Magnetic Particles

Cited by 1 publication

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Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites

Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites

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Recent Advances in Soft Magnetic Actuators and Sensors using Magnetic Particles

Cited by 1 publication

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Advanced Magnetic Actuation: Harnessing the Dynamics of Sm2Fe17–xCuxN3 Composites

Advanced Magnetic Actuation: Harnessing the Dynamics of Sm2Fe17–xCuxN3 Composites

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Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites

Advanced Magnetic Actuation: Harnessing the Dynamics of Sm₂Fe_17–xCu_xN₃ Composites