Next Materials· 2026Q1
Bonded permanent magnets with vertically aligned magnetic particles having highly uniform surface magnetic field fabricated by electrical alignment
- 0citations
- Q1SCImago
- 2026year
Short summary
A flexible bonded magnet with uniformly distributed SrFe12O19 particles and a highly uniform surface magnetic field was fabricated using an electrical alignment method with rotating electrodes and an AC bias of 5 kVpp.
AI-generated from the title and abstract; the full text is not read.
Key points
- SrFe12O19 particles were aligned perpendicular to the surface in a PDMS matrix using electrical alignment with rotating electrodes and a 5 kVpp AC bias.
- The alignment resulted in magnetization curves that were nearly identical under in-plane and perpendicular magnetic fields, indicating perpendicular alignment of easy axes.
- Surface magnetic field imaging confirmed uniform particle distribution and field strength on both sides of the sample.
- This technique offers a method to produce bonded magnets with uniform surface magnetic fields, beneficial for reducing noise in motors and actuators.
AI-generated from the title and abstract; the full text is not read.
Abstract
We fabricated a flexible bonded magnet with a uniform surface magnetic field using an electrical alignment method with electrode rotation to align SrFe 12 O 19 magnetic particles in a polydimethylsiloxane (PDMS) polymer matrix. According to optical microscopy images, the SrFe 12 O 19 particles were aligned in the perpendicular direction in the PDMS using an AC bias of 5 kVpp. All samples had the same magnetization curve shape, and the magnetization curves under in-plane and perpendicular magnetic fields were almost the same. This indicates that the magnetic easy axes of the SrFe 12 O 19 particles were almost randomly aligned, although those in the samples with an AC bias were aligned in the perpendicular direction. Surface magnetic field images of the front and back sides of the samples showed that the SrFe 12 O 19 particles were uniformly distributed on both surfaces of the sample with AC bias and electrode rotation. Therefore, this technique can be helpful for practical applications of bonded magnets because a uniform surface magnetic field can suppress noise in applications such as motors and actuators.
The authors' abstract, as published at the source. Next Materials, 2026 · DOI ↗
Continue with a free account
Ask the paper: 3 free questions a day about this paper; save it, get its citation, new summaries every day for your field. Takeaways are Premium.
Continue free on the webSign in with Google or Apple; no card needed. You come back to this paper.
On your phone:
Field: Electronic, Optical and Magnetic Materials
Electronic, Optical and Magnetic MaterialsMaterials Science