Hostname: page-component-8448b6f56d-tj2md Total loading time: 0 Render date: 2024-04-22T23:41:27.469Z Has data issue: false hasContentIssue false

Effect of BaCu(B2O5) additions on the sintering behaviors and dielectric-magnetic properties of Co2Z hexaferrite

Published online by Cambridge University Press:  26 August 2015

Panpan Chang
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & State Key Laboratory for Mechanical Behavior of Materials, Xi'an 710049, China
Li He
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & State Key Laboratory for Mechanical Behavior of Materials, Xi'an 710049, China
Hong Wang*
Affiliation:
Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & State Key Laboratory for Mechanical Behavior of Materials, Xi'an 710049, China
*
a)Address all correspondence to this author. e-mail: hwang@mail.xjtu.edu.cn
Get access

Abstract

In this study, BaCu(B2O5) (BCB) is utilized as the sintering aids to decrease the sintering temperature of Ba3(Co0.4Zn0.6)2Fe24O41 [(Co0.4Zn0.6)2Z]. The influence of BCB addition on the microstructures as well as the dielectric and magnetic properties of the (Co0.4Zn0.6)2Z ceramic samples is investigated. It is found that the 5 wt% BCB added (Co0.4Zn0.6)2Z sintered at 925 °C exhibits both a high relative density of about 95% and a homogeneous microstructure with few pores existing. Both the relative permittivity and permeability of the sample keep stable from 10 to 800 MHz. Also, the dielectric and magnetic loss are low and effectively suppressed within a wide frequency range. For the specimen with 5 wt% BCB, the dielectric and magnetic loss tangent are 0.003 and 0.039 at 200 MHz, respectively. In addition, a compatibility test with Ag powders has been carried out. The optimized properties indicate that this kind of low temperature sintered Z-type hexaferrite is a good candidate for the applications of multilayer chip inductors.

Type
Articles
Copyright
Copyright © Materials Research Society 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Jia, L.J., Luo, J., Zhang, H.W., Xue, G., and Jing, Y.: High-frequency properties of Si-doped Z-type hexaferrites. J. Alloys Compd. 489, 162 (2010).CrossRefGoogle Scholar
Wang, X.H., Li, L.T., Yue, Z.X., and Su, S.Y.: Effect of SiO2 additive on the high-frequency properties of low-temperature fired Co2Z. J. Magn. Magn. Mater. 271, 301 (2004).CrossRefGoogle Scholar
Wang, X.H., Li, L.T., Su, S.Y., and Yue, Z.X.: Electromagnetic properties of low-temperature-sintered Ba3Co2−xZnxFe24O41 ferrites prepared by solid state reaction method. J. Magn. Magn. Mater. 280, 10 (2004).CrossRefGoogle Scholar
Jia, L.J., Zhang, H.W., Liu, Y.L., Zhong, Z.Y., and Wen, Q.Y.: Effects of mixing procedure and Bi2O3 content on structural and magnetic properties of hexaferrites sintered at low temperature. J. Magn. Magn. Mater. 316, 67 (2007).CrossRefGoogle Scholar
Kimura, O., Shoji, K., and Maiwa, H.: Low temperature sintering of iron deficient Z type hexagonal ferrites. J. Eur. Ceram. Soc. 26, 2845 (2006).CrossRefGoogle Scholar
Saita, H., Fang, Y., Nakano, A., Agrawal, D., Lanagan, M.T., Shrout, T.R., and Randall, C.A.: Microwave sintering study of NiCuZn ferrite ceramics and devices. Jpn. J. Appl. Phys. 41, 86 (2002).CrossRefGoogle Scholar
Nam, J.H., Jung, H.H., Shin, J.Y., and Oh, J.H.: The effect of Cu substitution on the electrical and magnetic properties of NiZn ferrites. IEEE Trans. Magn. 31, 3985 (1995).CrossRefGoogle Scholar
Birajdar, A.A., Shirsath, S.E., Kadam, R.H., Patange, S.M., Lohar, K.S., Mane, D.R., and Shitre, A.R.: Role of Cr3+ ions on the microstructure development, and magnetic phase evolution of Ni0.7Zn0.3Fe2O4 ferrite nanoparticles. J. Alloys Compd. 512, 316 (2012).CrossRefGoogle Scholar
Zhang, W., Bai, Y., Han, X., Wang, L., Lu, X., Qiao, L., Cao, J., and Guo, D.: Phase formation, sintering behavior and magnetic property of Bi–Co–Ti substituted M-type barium hexaferrite. J. Alloys Compd. 556, 20 (2013).CrossRefGoogle Scholar
Zhang, H.G., Zhou, J., Wang, Y.L., Li, L.T., Yue, Z.X., and Gui, Z.L.: The effect of Zn ion substitution on electromagnetic properties of low-temperature fired Z-type hexaferrite. Ceram. Int. 28, 917 (2002).CrossRefGoogle Scholar
Kim, M.H., Lim, J.B., Kim, J.C., Nahm, S., Paik, J.H., Kim, J.H., and Park, K.S.: Synthesis of BaCu(B2O5) ceramics and their effect on the sintering temperature and microwave dielectric properties of Ba(Zn1/3Nb2/3)O3Ceramics. J. Am. Ceram. Soc. 89, 3124 (2006).CrossRefGoogle Scholar
Lim, J.B., Cho, K.H., Nahm, S., Paik, J.H., and Kim, J.H.: Effect of BaCu(B2O5) on the sintering temperature and microwave dielectric properties of BaO–Ln2O3–TiO2 (Ln=Sm, Nd) ceramics. Mater. Res. Bull. 41, 1868 (2006).CrossRefGoogle Scholar
Zhou, H.F., Liu, X.B., Chen, X.L., Fang, L., and Wang, H.: Microwave dielectric properties and compatibility with silver of low-fired Ba2Ti3Nb4O18 ceramics with BaCu(B2O5) addition. J. Mater. Sci.: Mater. Electron. 23, 238 (2011).Google Scholar
Chen, X.L., Zhou, H.F., Fang, L., Liu, X.B., and Wang, Y.L.: Microwave dielectric properties and its compatibility with silver electrode of Li2MgTi3O8 ceramics. J. Alloys Compd. 509, 5829 (2011).CrossRefGoogle Scholar
Koops, C.: On the dispersion of resistivity and dielectric constant of some semiconductors at audio frequencies. Phys. Rev. 83, 121 (1951).CrossRefGoogle Scholar
Naik, L.R. and Bammannavar, B.K.: The Ferroelectric Dependent Magnetoelectricity in Composites, Ferroelectrics - Characterization and Modeling, Lallart, M. ed. (In Tech, Rijeka, 2011).Google Scholar
Khetrea, S.M., Jadhav, H.V., Jagadale, P.N., Kulal, S.R., and Bamane, S.R.: Studies on electrical and dielectric properties of LaFeO3 . Adv. Appl. Sci. Res. 2, 503 (2011).Google Scholar
Köseoğlu, Y., Bay, M., Tan, M., Baykal, A., Sözeri, H., Topkaya, R., and Akdoğan, N.: Magnetic and dielectric properties of Mn0.2Ni0.8Fe2O4 nanoparticles synthesized by PEG-assisted hydrothermal method. J. Nanopart. Res. 13, 2235 (2010).CrossRefGoogle Scholar
Yang, H.B., Wang, H., Xiang, F., and Yao, X.: Microstructure and electromagnetic properties of SrTiO3/Ni0.8Zn0.2Fe2O4 composites by hybrid process. J. Am. Ceram. Soc. 92, 2005 (2009).CrossRefGoogle Scholar
Zheng, Z.L., Zhang, H.W., Xiao, J.Q., and Bai, F.M.: Low loss NiZn/Co2Z composite ferrite with almost equal values of permeability and permittivity for antenna applications. IEEE Trans. Magn. 49, 4214 (2013).CrossRefGoogle Scholar
Mu, C.H., Liu, Y.L., Zhang, H.W., Song, Y.Q., Wen, Q.Y., and Shen, J.: Influence of MgTiO3 on the magnetic and dielectric properties of Ba3Co2Fe24O41hexaferrite. J. Appl. Phys. 107, 09A511 (2010).CrossRefGoogle Scholar
Zhang, H.G., Zhou, J., Wang, Y.L., Li, L.T., Yue, Z.X., and Gui, Z.L.: Microstructure and magnetic characteristics of low-temperature-fired modified Z-type hexaferrite with Bi2O3 additive. IEEE Trans. Magn. 38, 1797 (2002).CrossRefGoogle Scholar
Nakamura, T., Tsutaoka, T., and Hatakeyama, K.: Frequency dispersion of permeability in ferrite composite materials. J. Magn. Magn. Mater. 138, 319 (1994).CrossRefGoogle Scholar
Nakamura, T.: Low-temperature sintering of Ni-Zn-Cu ferrite and its permeability spectra. J. Magn. Magn. Mater. 168, 285 (1997).CrossRefGoogle Scholar
Xia, Q., Su, H., Shen, G., Pan, T., Zhang, T., Zhang, H., and Tang, X.: Investigation of low loss Z-type hexaferrites for antenna applications. J. Appl. Phys. 111, 063921 (2012).CrossRefGoogle Scholar