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- Title
Effect Of DyMn Alloy-Powder Addition On Microstructure And Magnetic Properties Of NdFeB Sintered Magnets.
- Authors
Lee, M.-W.; Dhakal, D.R.; Kim, T.H.; Lee, S.R.; Kim, H.J.; Jang, T.S.
- Abstract
Micostructural change and corresponding effect on coercivity of a NdFeB sintered magnet mixed with small amount of DyMn powder was investigated. In the sintered magnet mixed with the DyMn alloy-powder Dy-rich shell was formed at outer layer of the main grains, while Mn was mostly concentrated at Nd-rich triple junction phase (TJP), lowering melting temperature of the Nd-rich phase that eventually improved the microstructural characteristics of the gain boundary phase. The coercivity of a magnet increased more than 3.5 kOe by the mixing of the DyMn alloy-powder.
- Subjects
NEODYMIUM; SINTERING; MAGNETS; DYSPROSIUM compounds; ALLOY powders; COERCIVE fields (Electronics); MELTING points
- Publication
Archives of Metallurgy & Materials, 2015, Vol 60, Issue 2, p1407
- ISSN
1733-3490
- Publication type
Article
- DOI
10.1515/amm-2015-0142