Effects of alignment on the magnetic and mechanical properties of sintered Nd-Fe-B magnets

X. G. Cui; C. Y. Cui; X. N. Cheng; X. J. Xu; T. Y. Ma; M. Yan; C. Wang

doi:10.1016/j.jallcom.2013.02.093

Effects of alignment on the magnetic and mechanical properties of sintered Nd-Fe-B magnets

X. G. Cui
, C. Y. Cui
, X. N. Cheng
, X. J. Xu
, T. Y. Ma
, M. Yan
, C. Wang

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Abstract

Sintered Nd-Fe-B magnets with various degrees of grain alignment are prepared by the conventional powder metallurgy technique. The magnetic properties, bending strength and fracture morphologies of sintered magnets with different alignment degrees are investigated. The results show that the remanence B_r and maximum energy product (BH)_max increase, while intrinsic coercivity H_cj decreases gradually with increasing the alignment degree. Moreover, the bending strengths measured by applying force parallel (σ_bb∥) and perpendicular (σ _bb⊥) to the alignment magnetic field H_appl present opposite variation tendency, and σ_bb∥ is larger than σ_bb⊥, suggesting the more significant anisotropy of mechanical properties with increasing the degree of grain alignment. Furthermore, the related mechanisms are systematically analyzed.

Original language	English
Pages (from-to)	161-164
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	563
DOIs	https://doi.org/10.1016/j.jallcom.2013.02.093
State	Published - 25 Jun 2013
Externally published	Yes

Keywords

Bending strength
Degree of alignment
Fracture morphology
Magnetic properties
Sintered Nd-Fe-B magnets

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10.1016/j.jallcom.2013.02.093

Cite this

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title = "Effects of alignment on the magnetic and mechanical properties of sintered Nd-Fe-B magnets",

abstract = "Sintered Nd-Fe-B magnets with various degrees of grain alignment are prepared by the conventional powder metallurgy technique. The magnetic properties, bending strength and fracture morphologies of sintered magnets with different alignment degrees are investigated. The results show that the remanence Br and maximum energy product (BH)max increase, while intrinsic coercivity Hcj decreases gradually with increasing the alignment degree. Moreover, the bending strengths measured by applying force parallel (σbb∥) and perpendicular (σ bb⊥) to the alignment magnetic field Happl present opposite variation tendency, and σbb∥ is larger than σbb⊥, suggesting the more significant anisotropy of mechanical properties with increasing the degree of grain alignment. Furthermore, the related mechanisms are systematically analyzed.",

keywords = "Bending strength, Degree of alignment, Fracture morphology, Magnetic properties, Sintered Nd-Fe-B magnets",

author = "Cui, \{X. G.\} and Cui, \{C. Y.\} and Cheng, \{X. N.\} and Xu, \{X. J.\} and Ma, \{T. Y.\} and M. Yan and C. Wang",

year = "2013",

month = jun,

day = "25",

doi = "10.1016/j.jallcom.2013.02.093",

language = "英语",

volume = "563",

pages = "161--164",

journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Effects of alignment on the magnetic and mechanical properties of sintered Nd-Fe-B magnets

AU - Cui, X. G.

AU - Cui, C. Y.

AU - Cheng, X. N.

AU - Xu, X. J.

AU - Ma, T. Y.

AU - Yan, M.

AU - Wang, C.

PY - 2013/6/25

Y1 - 2013/6/25

N2 - Sintered Nd-Fe-B magnets with various degrees of grain alignment are prepared by the conventional powder metallurgy technique. The magnetic properties, bending strength and fracture morphologies of sintered magnets with different alignment degrees are investigated. The results show that the remanence Br and maximum energy product (BH)max increase, while intrinsic coercivity Hcj decreases gradually with increasing the alignment degree. Moreover, the bending strengths measured by applying force parallel (σbb∥) and perpendicular (σ bb⊥) to the alignment magnetic field Happl present opposite variation tendency, and σbb∥ is larger than σbb⊥, suggesting the more significant anisotropy of mechanical properties with increasing the degree of grain alignment. Furthermore, the related mechanisms are systematically analyzed.

AB - Sintered Nd-Fe-B magnets with various degrees of grain alignment are prepared by the conventional powder metallurgy technique. The magnetic properties, bending strength and fracture morphologies of sintered magnets with different alignment degrees are investigated. The results show that the remanence Br and maximum energy product (BH)max increase, while intrinsic coercivity Hcj decreases gradually with increasing the alignment degree. Moreover, the bending strengths measured by applying force parallel (σbb∥) and perpendicular (σ bb⊥) to the alignment magnetic field Happl present opposite variation tendency, and σbb∥ is larger than σbb⊥, suggesting the more significant anisotropy of mechanical properties with increasing the degree of grain alignment. Furthermore, the related mechanisms are systematically analyzed.

KW - Bending strength

KW - Degree of alignment

KW - Fracture morphology

KW - Magnetic properties

KW - Sintered Nd-Fe-B magnets

UR - https://www.scopus.com/pages/publications/84874932326

U2 - 10.1016/j.jallcom.2013.02.093

DO - 10.1016/j.jallcom.2013.02.093

M3 - 文章

AN - SCOPUS:84874932326

SN - 0925-8388

VL - 563

SP - 161

EP - 164

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Effects of alignment on the magnetic and mechanical properties of sintered Nd-Fe-B magnets

Abstract

Keywords

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