환원-확산법에 의해 제조된 Sm-Fe 합금분말의 질화거동 및 자기특성에 미치는 Mn첨가 효과
The Effect of Mn Addition on Nitrogenation Behavior and Magnetic Properties of Sm-Fe Alloy Powder Produced by Reduction-diffusion Method
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In the present study, we systematically investigated the effect of Mn addition on nitrogenation behavior and magnetic properties of Sm-Fe powders produced by reduction-diffusion process. Alloy powders with only Sm2(Fe,Mn)17 single phase were successfully produced by the reduction-diffusion process. The coercivity of Sm2(Fe,Mn)17 powder rapidly increased during nitrogenation and reached the maximum of 637 Oe after 16 hours. After further nitrogenation, it decreased. In contrast, the coercivity of Sm2Fe17 powder gradually increased during nitrogenation for 24 hours. The coercivity of Sm2(Fe,Mn)17 powder was higher than that of Sm2Fe17 powder at the same condition of nitrogenation. It was considered that the Mn addition facilitates the nitrogenation of Sm2Fe17 powder and enhances the coercivity.
Abstract
In the present study, we systematically investigated the effect of Mn addition on nitrogenation behavior and magnetic properties of Sm-Fe powders produced by reduction-diffusion process. Alloy powders with only Sm2(Fe,Mn)17 single phase were successfully produced by the reduction-diffusion process. The coercivity of Sm2(Fe,Mn)17 powder rapidly increased during nitrogenation and reached the maximum of 637 Oe after 16 hours. After further nitrogenation, it decreased. In contrast, the coercivity of Sm2Fe17 powder gradually increased during nitrogenation for 24 hours. The coercivity of Sm2(Fe,Mn)17 powder was higher than that of Sm2Fe17 powder at the same condition of nitrogenation. It was considered that the Mn addition facilitates the nitrogenation of Sm2Fe17 powder and enhances the coercivity.
참고문헌 (20)
- L. Ping., , Procedia Engineering, 15, pp.309~ (2011)
- J. G. Lee., , Trends in Metals & Materials Engineering, 24, pp.4~ (2010)
- J. M. D. Coey., , J. Magn. Mater, 87, pp.L251~ (1990)
- Y. Otani., , J. Appl. Phys, 69, pp.5584~ (1991)
- J. Ye., , J. Rare Earth, 23, pp.53~ (2005)
- J. J. Wyslocki., , J. Magn. Magn. Mater, 231, pp.272~ (2001)
- N. Imaoka., , J. Alloys Comp, 222, pp.73~ (1995)
- R. E. Cech, , JOM, 26, pp.32~ (1974)
- A. Kawamoto, , IEEE Trans Magn, 35, pp.3322~ (1999)
- V. R. Carrarena., , Latin American Applied Research, 36, pp.137~ (2006)
- S. Hirosawa., , J. Magn. Soc. Japan, 21, pp.160~ (1997)
- T. Ishikawa, , The Japan Society Applied Elecro magnetic and Mechanics, 10, pp.287~ (2002)
- 곽훈, "환원-확산법에 의한 Sm-Fe 합금분말 제조시 Sm2O3 첨가량의 영향", 한국분말야금학회지, 16(5), pp.336~341 (2009), 한국분말야금학회
- 이정구, "환원-확산법에 의한 Sm-Fe-N계 자성분말 제조", 대한금속·재료학회지, 48(9), pp.842~846 (2010), 대한금속·재료학회
- 이정구, "The Influence of Mechanical Milling on the Structure and Magnetic Properties of Sm-Fe-N Powder Produced by the Reduction-Diffusion Process", Journal of Magnetics, 16(2), pp.104~107 (2011), 한국자기학회
- D. C. Jiles, , Acta Mater, 51, pp.5907~ (2003)
- T. Ishikawa., , J. Magn. Soc. Japan, 24, pp.1394~ (2000)
- K. Ohmori., , Magnetics Conference, 24, pp.915~ (2006)
- D. H. Kim., , J. Kor. Magnetics Society, 5(5) (1995)