Browse > Article
http://dx.doi.org/10.3740/MRSK.2004.14.9.655

Physical Properties of Polycrystalline Mn2O3-Substituted LiNiBi Ferrite  

Koh Sae Gui (Department of Physics, Soongsil University)
Publication Information
Korean Journal of Materials Research / v.14, no.9, 2004 , pp. 655-658 More about this Journal
Abstract
Lithium ferrites are a low-cost material which have been prominent in the high frequency core industry because of their excellent temperature performance and high squareness ratio. In order to develope the lithium ferrites with the high squareness and low coercive force, the ferrites of $Li_{0.48}Bi_{0.02}Ni_{0.04}Fe_{2.46-x}O_4$ were investigated the by varying composition, temperature and frequency. Electric loss of the Li-ferrite was lowered with the substitution of $Mn_{2}O_3$. The addition of $Mn_{2}O_3$ increased the magnetic induction (Bm&Br) but decreased the coercive force (Hc) and the squareness ratio (R=Br/Bm). Also, the Br value was stable at environmental temperature variation.
Keywords
squareness ratio; magnetic induction; coercive force; loss factor;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 J. G. Koh, JKPS, 44(6), 1504 (2004)
2 J. G. Koh, J. Kor. Mag. Soc. 9(5), 234 (1999)   과학기술학회마을
3 S. J. So and C. B. Park, JKPS, 38(4), 417 (2001)
4 D. H. Ridgly, H. Lessoff and J. D. Childress, J. Amer. Ceram. Soc., 53, 304 (1970)   DOI
5 J. M. Song and J. G. Koh, New Physics, 34, 1, 115 (1994)
6 H. C. Kim and J. G. Koh, J. Kor. Mag. Soc., 13(3), 121 (2003)   과학기술학회마을   DOI
7 W. M. Dawson, Proc. 8th. Int. Conf. Ferrite, p.512, Kyoto and Tokyo, Japan (2000)
8 M. Drofenik, A. Znidarsic and D. Makovec, Proc. 8th. Int. Conf. Ferrite, p.530, Kyoto and Tokyo, Japan (2000)
9 J. G. Koh and J. M. Song, Basic and Application of Magnetic Physics, p.51, Soongsil Univ. Press, Seoul, (2001)
10 J. G. Koh and J. M. Song, Basic and Application of Magnetic Physics, p.125, Soongsil Univ. Press, Seoul, (2001)
11 H. T. Hahn, J. Appl., 69, 6192 (1991)   DOI
12 J. M. Song and J. G. Koh, New Physics, 33, 277 (1993)
13 T. Kuroda, H. Saita, N.Sato and T. Nomura, Proc. 8th. Int. Conf. Ferrite, p.506, Kyoto and Tokyo, Japan (2000)
14 O. Kobayashi, O. Yamada, K. Ito and M. Tomita, Proc. 8th. Int. Conf. Ferrite, p.515, Kyoto and Tokyo, Japan (2000)
15 P. Reddy, J. Appl. Phys., 63, 3783 (1988)   DOI
16 J. G. Kim, K. H. Han, C. H. Lee and J. Y. Jeong, JKPS, 38(6), 799 (2001)
17 J. G. Koh, Application of Magnetic Physics, p.81, Soongsil Univ. Press, Seoul, (1992)