Journal ArticleOPEN ACCESS

Coercivity enhancement of Nd-Fe-B sintered magnets by grain boundary modification via reduction-diffusion process

  • Li D
  • Nishimoto M
  • Suzuki S
  • et al.
IOP Conference Series: Materials Science and Engineering (2009) 1 012020
DOI: 10.1088/1757-8981/1/1/012020
N/ACitations
Citations of this article
12Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

The interface between the Nd2Fe14B particles and the grain boundary surrounding them in Nd-Fe-B sintered magnets was modified by diffusion Dy metal selectively through the grain boundary involving the reduction of Dy2O3 or DyF3 with CaH2 and the coercivity of them was effectively enhanced from 0.98 MA/m to 1.42 MA/m with keeping the high value of remanence. The resultant coercivity was higher than that of the magnets modified with Dy2O3 (HcJ = 1.10 MA/m) and DyF3 (HcJ = 1.24 MA/m) without using any reductant such as CaH2, respectively.

Cite

CITATION STYLE

APA

Li, D. S., Nishimoto, M., Suzuki, S., Nishiyama, K., Itoh, M., & Machida, K. (2009). Coercivity enhancement of Nd-Fe-B sintered magnets by grain boundary modification via reduction-diffusion process. IOP Conference Series: Materials Science and Engineering, 1, 012020. https://doi.org/10.1088/1757-8981/1/1/012020

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free