采用MgCuZn铁氧体(MCZF)分别与少量CaTiO3(CT)和BaTiO3 (BT)复合,以Bi2O3为助熔剂,通过标准陶瓷工艺在900和950℃烧结得到适合低温共烧陶瓷(LTCC)工艺的两类复合材料MCZF/CT和MCZF/BT.对比研究铁氧体与两类复合材料的磁性能和介电性能发现,与陶瓷复合后材料的截止频率可以从13.9MHz提高到136.5MHz,而1MHz处的介电损耗可以从0.741降低到0.012.对比研究不同烧结温度下复合材料的电磁性能发现,950℃烧结的样品比900℃烧结时有更高的起始磁导率、Snoek产量、介电常数及更低的介电损耗,其中MCZF/CT的起始磁导率达到51.8,明显高于MCZF/BT,但后者有更优良的介电频率特性.此外,结合微结构分析讨论了950℃烧结样品的电磁性能变化原因.
参考文献
[1] | Mantese JV.;Dungan DF.;Geyer RG.;Bakerjarvis J.;Grosvenor J.;Micheli AL. .APPLICABILITY OF EFFECTIVE MEDIUM THEORY TO FERROELECTRIC/FERRIMAGNETIC COMPOSITES WITH COMPOSITION AND FREQUENCY-DEPENDENT COMPLEX PERMITTIVITIES AND PERMEABILITIES[J].Journal of Applied Physics,1996(3):1655-1660. |
[2] | H. W. Zhang;H. Zhong;B. Y. Liu;Y. L. Jing;Y. Y. Liu .Electromagnetic Properties of a New Ferrite-Ceramic Low-Temperature Cocalcined (LTCC) Composite Materials[J].IEEE Transactions on Magnetics,2005(10):3454-3456. |
[3] | Weiwei Ling;Huaiwu Zhang;Yuanxun Li;Yunsong Xie;Ying He;Long Peng;Feiming Bai .Electromagnetic properties of ferroelectric/ferromagnetic composite materials base on low temperature cofired ceramic technology[J].Journal of Applied Physics,2009(7):07D911-1-07D911-3-0. |
[4] | Ling W;Zhang H;He Y et al.Magnetic and dielectric properties of low temperature fired ferrite/ceramic composite materials[J].Progress in Natural Science:Materials International,2011,21:2126. |
[5] | Jianhong Shen;Yang Bai;Ji Zhou .Magnetic Properties of a Novel Ceramic Ferroelectric-Ferromagnetic Composite[J].Journal of the American Ceramic Society,2005(12):3440-3443. |
[6] | Hsu R T;Peng T M;Jean J H .Electrical properties of low-fire ferroelectric + ferrimagnetic ceramic composite[J].Japanese Journal of Applied Physics,2006,45:6841-5846. |
[7] | 徐自强,杨邦朝,石玉.LTCC异质材料匹配共烧研究[J].功能材料,2011(06):1079-1082. |
[8] | Imanaka Y.Multilayered low temperature cofired ceramics(LTCC)technology[M].New York:springer-verlag,2005:4-5. |
[9] | Ling W;Li Y;Nie H et al.Structural and magnetic properties of low temperature fired ferrite/ceramic composite materials[J].Current Advances in Materials and Processes,2012,466-467:361-365. |
[10] | Rado G T .Magnetic spectra of ferrite[J].Reviews of Modern Physics,1953,25:81-89. |
[11] | Nakamura T;Tsutaoka T;Hatakeyama K .Frequency dispersion of permeability in ferrite composite materials[J].Journal of Magnetism and Magnetic Materials,1994,138:319-328. |
[12] | Slick P I.Ferrites for non-microwave applications[A].Amsterdam.Elsevier Science B V,1986:208-209. |
[13] | Snoek J L .Dispersion and absorption in magnetic ferrites at frequencies above one Mc/s[J].Physica,1948,14:207-217. |
[14] | Bush G G .Generalization of Snoek's limit for modeling initial permeability of magnetic materials[J].Journal of Applied Physics,1988,63:3765-3767. |
[15] | Maxwell J.Electricity and magnetism[M].London,Oxford:Oxford University Press,1873:328. |
[16] | Wagner K .Zur theorie der unvollkommenen dielektrika[J].AnnalenderPhysik,1913,345:817-855. |
[17] | Murthy V R K;Shobanadri J .Dielectric properties of some nickel-zinc ferrites at radio frequency[J].Physical Status Solidi A Applied Research,1976,36:K133-K135. |
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