Detailed Information
Cited 0 time in 
Cited 0 time in 
Cited 0 time in
Metadata Downloads
Dy 화합물 혼합에 의한 (Nd, Dy)-Fe-B 소결자석의 자기특성 변화Magnetic Properties of (Nd, Dy)-Fe-B Sintered Magnets Mixed with Dy Compounds
- Other Titles
- Magnetic Properties of (Nd, Dy)-Fe-B Sintered Magnets Mixed with Dy Compounds
- Issue Date
- 2011
- Publisher
- 한국분말야금학회
- Keywords
- Dy; Nd-Fe-B magnet; Dy_2O_3; DyF_3; Magnetic property
- Citation
- 한국분말야금학회지, v.18, no.1, pp.29 - 34
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 18
- Number
- 1
- Start Page
- 29
- End Page
- 34
- ISSN
- 1225-7591
- Abstract
- In order to increase the coercivity of (Nd, Dy)-Fe-B sintered magnets without much reduction of remanence, small amount of Dy compounds such as Dy_2O_3 and DyF_3 was mixed with (Nd, Dy)-Fe-B powder. After mixing, the coercivity of (Nd, Dy)-Fe-B sintered magnets apparently increased with the increase of Dy compound in the mixture. Addition of DyF_3 was more effective than Dy_2O_3 for the improvement of coercivity. Reduction of the remanence by the addition of Dy compound, however, was larger than expected mostly due to unresolved coarse Dy compound in the magnet. EPMA analysis revealed that Dy was diffused throughout the grains in the magnet mixed with DyF_3 whereas Dy was rather concentrated around grain boundaries in the magnet mixed with Dy_2O_3.
- Files in This Item
- There are no files associated with this item.
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.