Optimization of NdFeB alloy composition for preparing high-performance melt-spun ribbons

Xuan Truong Nguyen; Hong Ky Vu; Kha Anh Vuong; Hoai Nam Nguyen; Thi Thuy Ngan Dang; Huy Hoang Nguyen; Van Vuong Nguyen

doi:10.15625/0868-3166/19565

Author affiliations

Authors

Nguyen Xuan Truong \(^1\) Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
\(^2\)Graduate University of Science and Tecnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam https://orcid.org/0000-0003-4343-7758
Vu Hong Ky Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Vuong Anh Kha \(^1\) Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
\(^2\)Graduate University of Science and Tecnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Nguyen Hoai Nam Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Dang Thi Thuy Ngan Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Nguyen Huy Hoang Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Nguyen Van Vuong Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam https://orcid.org/0000-0001-9838-4564

DOI:

https://doi.org/10.15625/0868-3166/19565

Keywords:

NdFeCoB-based alloy composition; magnetic field assisted melt-spinning ribbons; magnetic properties.

Abstract

The magnetic field assisted melt-spinning method is a novel approach for producing anisotropic NdFeB-based ribbons and anisotropic bonded magnets. These anisotropic ribbons are required to be grown on the magnetized seeds, so the initial composition of the alloys used for melt-spinning ribbons is very crucial in creating ribbons' textured microstructures. This paper reveals the results concerning the choice of alloy compositions containing Nd, Fe, Co and B to optimize the processing of ribbons with the high texture degree, high spontaneous magnetization, large coercivity as well the strong exchange-coupling interaction. The guides of producing these ribbons are presented in detail that are fruitful in a massive production of high-performance NdFeB-based anisotropic ribbons and magnets prepared thereof.

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