Enhancing the coercivity of Nd-Cu-diffused Nd-Fe-B permanent magnets by Nb-assisted grain boundary pinning

Enhancing the coercivity of Nd-Cu-diffused Nd-Fe-B permanent magnets by Nb-assisted grain boundary pinning

We report the effect of grain boundary diffusion of the Nd-Cu eutectic phase and the influence of Nb on the microstructure and magnetic properties of Nd-Fe-B melt-spun ribbons. The Atom probe tomography analysis indicated the presence of Nb clusters (∼10 nm), which possibly restricts grain growth du...

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Bibliographic Details
Main Authors: M. B. Siva Kumar, D. Prabhu, M. Sadhasivam, B. Manjusha, N. Chandrasekaran, K. G. Pradeep, G. Sundararajan, R. Gopalan
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Materials Research Letters
Subjects:
Grain boundary
diffusion
Atom Probe Tomography
Nb clusters
Nd-Fe-B magnet
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2022.2104139

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https://www.tandfonline.com/doi/10.1080/21663831.2022.2104139

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