Effects of Annealing on Coercivity and Magnetization of Terfenol-D Thin Films

Zhao, Keli; Pang, Peng; Luo, Jie; Ma, Binghe; Gao, Wei; Deng, Jinjun

doi:10.1109/tmag.2023.3237937

Cited by 2 publications

References 17 publications

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A Novel Asymmetric Interior Permanent Magnet Machine with Auxiliary Flux Barriers

Li,

Di,

Bao

2024

IEEJ Transactions Elec Engng

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A novel asymmetric interior permanent magnet (AIPM) machine is proposed in this paper. The machine's rotor consists of asymmetric poles and auxiliary flux barriers. The torque ripple of the machine is weakened by the asymmetric design of the left and right sides of the magnetic poles. The magnetic‐field‐shifting (MFS) effect improves the electromagnetic torque after adding the auxiliary flux barrier to shift the magnetic axis. The influence of critical geometrical parameters on the electromagnetic performance of the machine is investigated under the condition that the stator and permanent magnet volume remain unchanged. The relevant geometrical parameters of the machine are optimized and designed through the improved Taguchi method. The performance of the AIPM machine and the conventional machine under no‐load and load conditions are further compared by simulation analysis with finite elements, verifying the increase in electromagnetic torque and the reduction in torque ripple. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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A Novel Asymmetric Interior Permanent Magnet Machine with Auxiliary Flux Barriers

Li,

Di,

Bao

2024

IEEJ Transactions Elec Engng

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Advances in magnetic smart materials for synchrotron x-ray optics: a progress report on annealing and ultra-thin glass substrates

Ulmer,

Capoot,

Assoufid

et al. 2024

Advances in X-Ray/Euv Optics and Components XIX

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Magnetic smart materials (MSMs) offer an alternative to the typical piezo-electric actuators currently used to control X-ray optics on beamlines. MSMs, combined with an overcoating of a magnetic hard material, create a deformable mirror that can operate in a power-off mode. The non-reflective side of the mirror is coated with an MSM and the magnetic hard overcoat. The process works by using an electromagnet (EM) to impose a magnetic field in the bilayer of the MSM and the magnetic hard overcoat, causing the mirror to deflect. Once the EM is turned off, the mirror settles into a new shape within minutes, which can remain intact for days. Since the EM is not fixed to the mirror, the exact placement of the magnetic field can be adjusted by relocating the EM. This feature allows for fine-scale adjustments and avoids the "dead pixel" replacement problem common with piezo patches attached to the mirror. Here, we provide a progress report based on laboratory-produced data.

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Effects of Annealing on Coercivity and Magnetization of Terfenol-D Thin Films

Cited by 2 publications

References 17 publications

A Novel Asymmetric Interior Permanent Magnet Machine with Auxiliary Flux Barriers

A Novel Asymmetric Interior Permanent Magnet Machine with Auxiliary Flux Barriers

Advances in magnetic smart materials for synchrotron x-ray optics: a progress report on annealing and ultra-thin glass substrates

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