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Mechanical properties of (Nd,Dy)-Fe-B magnets sintered via cyclic sintering
- Authors
- Kim, Jin Woo; Kim, Se Hoon; Kim, Young Do
- Issue Date
- Feb-2012
- Publisher
- Elsevier BV
- Keywords
- Rare earth magnet; Cyclic sintering; Mechanical properties; Coercivity; Nd-rich phase
- Citation
- Materials Science and Engineering: A, v.535, pp 325 - 329
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Materials Science and Engineering: A
- Volume
- 535
- Start Page
- 325
- End Page
- 329
- ISSN
- 0921-5093
1873-4936
- 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.
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Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
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