Browse > Article
http://dx.doi.org/10.4150/KPMI.2010.17.2.154

Sintering Behavior and Phase Analysis of (Nd, Dy)-Fe-B Powder  

Kim, Se-Hoon (Department of Materials Science and Engineering, Hanyang University)
Kim, Jin-Woo (Department of Materials Science and Engineering, Hanyang University)
Kim, Young-Do (Department of Materials Science and Engineering, Hanyang University)
Publication Information
Journal of Powder Materials / v.17, no.2, 2010 , pp. 154-159 More about this Journal
Abstract
In this study, the sintering behavior of (Nd, Dy)-Fe-B powder which fabricated by strip-casting was investigated with various sintering temperatures and holding times. The relative density over 99% could be obtained by both sintering at $1070^{\circ}C$ for 1h and sintering at $970^{\circ}C$ for 20h. The grain growth was observed in sintered specimen at $1050^{\circ}C$ compared to one at $970^{\circ}C$. The isothermal sintering process below $1000^{\circ}C$ led to suppress grain growth showing the improved magnetic properties. The phase transformation of Nd-rich was confirmed by X-ray diffraction pattern.
Keywords
Nd-Fe-B magnets; Isothermal sintering; Non-isothermal sintering; Phase transformation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 F. Vial, F. Joly, E. Nevalainen, M. Sagawa, K. Hiraga and K. T. Park: J. Magn. Magn. Mater., 242-245 (2002) 1329 .   DOI   ScienceOn
2 M. Matsuura, S. Sugimoto, R. Goto and N. Tezuka: J. Appl. Phys. 105 (2009) 07A741.   DOI
3 R. Ramensh, G. Thomas and B. M. Ma: J. Appl. Phys., 70 (1991) 6453.   DOI
4 B. D. Cullity: Introduction to Magnetic Materials, Addison- Wesley, London, (1972).
5 S. Nishio, R. Goto, M. Matsuura, N. Tezuka and S. Sugimoto: J. Jpn. Inst. Met., 72 (2008) 1010.   DOI   ScienceOn
6 D. Lemarchand, P. Vigier and B. Labulle: IEEE Trans. Magn., 26 (1990) 2649.   DOI   ScienceOn
7 Y. Shinba, T. J. Konno, K. Ishikawa and K. Hiraga, J. Appl. Phys. 97 (2005) 053504.   DOI   ScienceOn
8 H.-S. Kim, S. H. Kim, J. W. Kim and Y. D. Kim: J. Korean Powder Metall. Inst., 17 (2010) 1 (Korean).   DOI   ScienceOn
9 D. Brown, B.-M. Ma and Z. Chen: J. Magn. Magn. Mater., 248 (2002) 432.   DOI   ScienceOn
10 S. H. Kim, Y. D. Kim and T. S. Jang: J. Korean Powder Metall. Inst., 15 (2008) 263 (Korean).   DOI   ScienceOn
11 S. H. Kim, H.-S. Kim, D. H. Kim and Y. D. Kim: J. Korean Powder Metall. Inst., 15 (2008) 531 (Korean).
12 S. J. Chu: Ultra-strong permanent magnet materials, Ulsan Univ. Pub., Ulsan, (1999).