Mechanical properties of (Nd,Dy)-Fe-B magnets sintered via cyclic sintering
- Title
- Mechanical properties of (Nd,Dy)-Fe-B magnets sintered via cyclic sintering
- Author
- 김영도
- Keywords
- Rare earth magnet; Cyclic sintering; Mechanical properties; Coercivity; Nd-rich phase; FE-B MAGNETS; PERMANENT-MAGNETS; ND; ALLOYS; COERCIVITY
- Issue Date
- 2012-02
- Publisher
- Elsevier Science SA
- Citation
- Materials Science & Engineering A, 2012, 535, P.325-329
- Abstract
- Nd13Dy2Fe79B6 (at%) magnets were fabricated via cyclic sintering. The cyclic sintering of Nd-Fe-B powder yielded samples with densities greater than 98%. The bending strength and fracture toughness of the cyclic sintered specimens were 520 MPa and 6.16 MPa m(1/2), respectively, and the coercivity of the samples increased from 1666.8 kA/m to 1828.5 kA/m. Nd-rich phases may have effectively penetrated into the boundaries between neighboring Nd2Fe14B grains during the cyclic sintering process. The microstructures and shapes of the Nd-rich phases were effectively controlled, resulting in improved mechanical and magnetic properties.
- URI
- https://www.sciencedirect.com/science/article/pii/S0921509311014821?via%3Dihub
- ISSN
- 0921-5093
- DOI
- 10.1016/j.msea.2011.12.100
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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