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Updated: Jun 6, 2025

Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
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强度为2千兆帕斯卡的柔性磁铁具有柔性强度

Liuliu Han1, Nicolas J Peter2, Fernando Maccari3

  • 1Max Planck Institute for Sustainable Materials, Max-Planck-Straße 1, 40237, Düsseldorf, Germany. l.han@mpie.de.

Nature communications
|November 23, 2024
PubMed
概括

研究人员开发了一种纳米结构方法,可以在不牺牲柔性的情况下,将软磁性材料 (SMM) 的强度提高一倍. 这一突破提高了电机等苛刻应用的机械性能,为更高效和更耐用的设备铺平了道路.

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Ferromagnetism01:31

Ferromagnetism

Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
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In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
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