The effect of Co addition on the fracture strength of NdFeB sintered magnets

Authors
Jiang, JH Zeng, ZP Yu, J Wu, JS Tokunaga, M
Citation
Jh. Jiang et al., The effect of Co addition on the fracture strength of NdFeB sintered magnets, INTERMETALL, 9(4), 2001, pp. 269-272
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
INTERMETALLICS
ISSN journal
09669795 → ACNP
Volume
9
Issue
4
Year of publication
2001
Pages
269 - 272
Database
ISI
SICI code
0966-9795(200104)9:4<269:TEOCAO>2.0.ZU;2-A
Abstract
The bending strength and fracture toughness of the ternary and Go-containin g NdFeB sintered magnets have been studied. The microstructure and the frac ture behavior were examined utilizing micro-analysis. It is shown that the bend fracture of the NdFeB magnets is mainly intergranular. The Co addition with proper content increases the bending strength of NdFeB sintered magne ts by about 80% and this is mainly due to the strengthening of Nd-rich grai n boundary phase. (C) 2001 Elsevier Science Ltd. All rights reserved.