Published May 7, 2014 | Version v1
Journal article Metadata-only

Improvement of the thermal stability of sintered Nd-Fe-B magnets by intergranular addition of Dy82.3Co17.7

Creators

  • 1. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang (China)
  • 2. University of Dayton, Dayton, Ohio 45469 (United States)

Description

In this study, microstructure and magnetic properties of sintered Nd-Fe-B magnets with addition of Dy82.3Co17.7 (wt. %) were investigated. By adding a small amount of Dy82.3Co17.7, the coercivity is improved greatly, and the irreversible loss is decreased sharply. The increase of Curie temperature suggests that Co atoms have entered into the 2:14:1 main phase. Microstructural analysis indicates that a well-developed core-shell structure was formed in the magnets with the addition of Dy82.3Co17.7. The improvement of magnetic properties can be attributed to the microstructural modification and the intrinsic properties' improvement

Additional details

Identifiers

DOI
10.1063/1.4868491;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
115
Journal Issue
17
Journal Page Range
vp.
ISSN
0021-8979
CODEN
JAPIAU

Conference

Title
55. annual conference on magnetism and magnetic materials
Dates
14-18 Nov 2010
Place
Atlanta, GA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45094979
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COBALT; COERCIVE FORCE; CURIE POINT; DYSPROSIUM; INTERMETALLIC COMPOUNDS; IRON BORIDES; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MAGNETS; MICROSTRUCTURE; NEODYMIUM COMPOUNDS
Descriptors DEC
ALLOYS; BORIDES; BORON COMPOUNDS; ELEMENTS; EQUIPMENT; IRON COMPOUNDS; MATERIALS; METALS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; RARE EARTHS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TRANSITION TEMPERATURE

Optional Information

Notes
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