Hot-pressed neodymium-iron-boron magnets

R. W. Lee

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Applied Physics Lett...arrow_drop_down

Applied Physics Letters

Article . 1985 . Peer-reviewed

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https://dx.doi.org/10.1063/1.9...

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Hot-pressed neodymium-iron-boron magnets

descriptionPublicationkeyboard_double_arrow_right Article 15 Apr 1985 English Publisher:AIP PublishingJournal:Applied Physics Letters, volume 46, pages 790-791 (issn: 0003-6951, eissn: 1077-3118,

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Authors: R. W. Lee;

doi: 10.1063/1.95884

Hot-pressed neodymium-iron-boron magnets

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Abstract

A new method is described which produces fully dense, well-aligned Nd-Fe-B magnets from rapidly quenched ribbons. Full density is achieved by hot pressing at ∼15 kpsi in argon at 700 °C. A second hot press in a larger die cavity to allow deformation transverse to the press direction (die upsetting) introduces a preferred magnetization direction parallel to the press direction. Energy products of 40 MGOe (Br/Hci=13.5 kG/11 kOe) have been generated by this method.

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