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http://dx.doi.org/10.4283/JKMS.2002.12.5.195

Study on Low-Temperature sintering of Co2Z type Ba ferrites for chip inductor  

조균우 (성균관대학교 재료공학과)
한영호 (성균관대학교 재료공학과)
문병철 (삼성전기(주))
Publication Information
Journal of the Korean Magnetics Society / v.12, no.5, 2002 , pp. 195-200 More about this Journal
Abstract
Low temperature sintering of Co$_2$Z type Ba ferrites with various oxide additives has been studied. Co$_2$Z phase was obtained by 2 step calcination and XRD peaks showed a good agreement with the peaks of the standard Co$_2$Z phase, except for some minor extra peaks. ZnO-B$_2$O$_3$ glass, ZnO-B$_2$O$_3$ and CuO, ZnO-B$_2$O$_3$ and Bi$_2$O$_3$, and ZnO-Bi$_2$O$_3$ glass were added to lower sintering temperatures. Specimens were sintered at the temperature range between 900 $^{\circ}C$ and 1000 $^{\circ}C$. In the single addition of ZnO-B$_2$O$_3$ glass, the specimen with 7.5 wt％ showed the highest shrinkage. Specimens with complex addition of ZnO-B$_2$O$_3$ glass with CuO or Bi$_2$O$_3$ showed higher shrinkages and initial permeabilities than single addition of ZnO-B$_2$O$_3$ glass. Shrinkages and initial permeabilities of the specimens with ZnO-Bi$_2$O$_3$ glass were higher than those of ZnO-B$_2$O$_3$ glass addition.
Keywords
Co$_2$Z type Ba ferrite; Co2Z type Ba ferrite; low-temperature sintering; shrinkage, initial permeability.;
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  • Reference
1 강석중,소결.과학문화사,(1997)
2 J. Smit, H. P. J. Wijn, Ferrites, Philips technical library (1959)
3 Ken Hirota, Tatsuji Aoyama, Sinsuke Enomoto, J. of Mag. and Mag. Matenals, 205, PP. 283-289(1999)   DOI   ScienceOn
4 Sea-Fue Wang, Yuh-Ruey Wang, Thomas C. K. Yang, Po-Jeng Wang, Chun-An Lu, J. of Mag. and Mag Matehals, 217, PP. 35-43(2000)   DOI   ScienceOn
5 Hsiao-Miin Sung, Chi-Jen Chen, Lih-Jiun Wang, Wen-Song Ko, IEEE Trans. on Mag., vol. 34, no. 4, PP. 1363-1365, (1998)   DOI   ScienceOn
6 T. Tachibana, K. Ohta, T. Shimada, Ferrites, Proceedings of the 8th International Conference of Ferrites, Japan, pp. 888-890, (2000)
7 H. Zhang, L. Li, P. Wu, J. Zhou, Z. Ma, Z. Gui, Material Research BulL, 35, pp. 2207-2215(2000)   DOI   ScienceOn
8 T. Nakamura, Fenites, Proceedings of the 8th International Conference of Ferrites, Japan, pp. 967-969(2000)
9 윤상옥,이형진,윤기현,정형진,자성재료세라믹스,반도출판사(1996)
10 M. Endo, A. Nakano. Ferdtes, Proceedings of the 8th Intema-tional Conference of Femtes, Japan, pp. 1168-1170(2000)
11 H. Marusawa, C. Kato, Ferrites, Proceedings of the 8th Inter-national Conference of Ferrites, Japan, PP. 942-944(2000)