稀土掺杂W型铁氧体BaCoZnCe_xFe_(16-x)O_(27)的制备与吸波性能研究
|
摘要
用溶胶-凝胶法制备了W型铁氧体BaCoZnCexFe16-xO27(x=0,0.05,0.1,0.15,0.2),考察了Ce3+掺杂对W型铁氧体性能的影响。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、振动样品磁强计(VSM)和矢量网络分析仪等手段表征了材料的物相组成、形貌,并且分析了它的磁性能和微波吸收性能。研究表明,制得的Ce3+掺杂W型铁氧体呈六角片状,样品呈顺磁性,其中x=0.15时样品的磁性能及微波吸收性能最好,吸收率小于-10 dB的吸收频带宽度达到了3.5 GHz,吸收峰值为-11.34 dB。
Sections 1 and 2 of the full paper explain the research mentioned in the title,some of whose results we believe are useful and whose core consists of: "The W-type ferrites,BaCoZnCexFe16-xO27(x=0,0.05,0.1,0.15,0.2),were prepared by sol-gel method.We Studyed the Influence on the performance of the Ce3+ doped W-type ferrites.We characterized the structures,morphologies,magnetic properties and microwave absorption properties of the samples with X-ray diffractometer(XRD),scanning electron microscope(SEM),vibrating sample magnetometer(VSM) and Vector network analyzer.".We present the experimental results in Figs 1 through 7 and Tables 1 and 2.These results and their analysis lead preliminarily to thefollowing three useful results:(1) all the samples are W-type ferrites and exhibit paramagnetism;(2) when x=0.15,magnetic and microwave absorbing performance are both the best;(3) the band width(with respect to-10 dB reflection loss) is 3.5GHz at a matching thickness of 3.0 mm and the maximal reflection loss is-11.34 dB.
Sections 1 and 2 of the full paper explain the research mentioned in the title,some of whose results we believe are useful and whose core consists of: "The W-type ferrites,BaCoZnCexFe16-xO27(x=0,0.05,0.1,0.15,0.2),were prepared by sol-gel method.We Studyed the Influence on the performance of the Ce3+ doped W-type ferrites.We characterized the structures,morphologies,magnetic properties and microwave absorption properties of the samples with X-ray diffractometer(XRD),scanning electron microscope(SEM),vibrating sample magnetometer(VSM) and Vector network analyzer.".We present the experimental results in Figs 1 through 7 and Tables 1 and 2.These results and their analysis lead preliminarily to thefollowing three useful results:(1) all the samples are W-type ferrites and exhibit paramagnetism;(2) when x=0.15,magnetic and microwave absorbing performance are both the best;(3) the band width(with respect to-10 dB reflection loss) is 3.5GHz at a matching thickness of 3.0 mm and the maximal reflection loss is-11.34 dB.
引文
[1]Imran Sadiq,Imran Khan,Faiza Aen,et al.Influence of Rare Earth Ce3+on Structural,Electrical and Magnetic Properties ofSr2+Based W-Type Hexagonal Ferrites.Physica B,2012,407:1256-1261
[2]Yaoyu Ren,Rainer Küngas,Raymond J,et al.The Effect of A-Site Cation(Ln=La,Pr,Sm)on the Crystal Structure,Con-ductivity and Oxygen Reduction Properties of Sr-Doped Ferrite Perovskites.Solid State Ionics,2012,212:47-54
[3]Huang Xiaogu,Zhang Jing,Wang Hongzhou,et al.Er3+-Substituted W-Type Barium Ferrite:Preparation and ElectromagneticProperties.Journal of Rare Earths,2010,8(6):940-943
[4]Vijaya Kumar M S,Kuribayashi K,Kitazono K.Formation of LuFe2O4 Phase from an Undercooled LuFeO3 Melt in Reduced Ox-ygen Partial Pressure.Journal of Materials Research,2008,23(11):2996-3005
[5]Wang J F,Ponton C B,Harris I R.A Study of Sm-Substituted SrM Magnets Sintered Using Hydrothermally Synthesised Pow-ders.Journal of Magnetism and Magnetic Materials,2006,298:122-131
[6]Muhammad Javed Iqbal,Saima Farooq.Impact of Pr-Ni Substitution on the Electrical and Magnetic Properties of Chemically De-rived Nanosized Strontium-Barium Hexaferrites.Journal of Alloys and Compounds,2010,505:560-567
[7]Zhang Ying,Wen Dijiang.Infrared Emission Properties of RE(RE=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,and Dy)and Mn Co-Doped Co0.6Zn0.4Fe2O4 Ferrites.Materials Chemistry and Physics,2012,131:575-580
[8]Hemeda D M,Hemeda O M.Electrical,Structural,Magnetic and Transport Properties of Zn2BaFe16O27 Doped with Cu2+.Journal of Magnetism and Magnetic Materials,2008,320:1557-1562
[9]Wang Yu,Pang Guangsheng,Chen Yan,et al.Preparation and Magnetic Properties of Fe3+-Nb5+Co-Doped SnO2.Journal ofSolid State Chemistry,2008,181:217-220
[10]Kowalczyk A,Falkowski M,Tolin'ski T,et al.Valence State and Magnetism of CeNi4Si and YbNi4Si.Solid State Communica-tions,2006,139:5-8
[2]Yaoyu Ren,Rainer Küngas,Raymond J,et al.The Effect of A-Site Cation(Ln=La,Pr,Sm)on the Crystal Structure,Con-ductivity and Oxygen Reduction Properties of Sr-Doped Ferrite Perovskites.Solid State Ionics,2012,212:47-54
[3]Huang Xiaogu,Zhang Jing,Wang Hongzhou,et al.Er3+-Substituted W-Type Barium Ferrite:Preparation and ElectromagneticProperties.Journal of Rare Earths,2010,8(6):940-943
[4]Vijaya Kumar M S,Kuribayashi K,Kitazono K.Formation of LuFe2O4 Phase from an Undercooled LuFeO3 Melt in Reduced Ox-ygen Partial Pressure.Journal of Materials Research,2008,23(11):2996-3005
[5]Wang J F,Ponton C B,Harris I R.A Study of Sm-Substituted SrM Magnets Sintered Using Hydrothermally Synthesised Pow-ders.Journal of Magnetism and Magnetic Materials,2006,298:122-131
[6]Muhammad Javed Iqbal,Saima Farooq.Impact of Pr-Ni Substitution on the Electrical and Magnetic Properties of Chemically De-rived Nanosized Strontium-Barium Hexaferrites.Journal of Alloys and Compounds,2010,505:560-567
[7]Zhang Ying,Wen Dijiang.Infrared Emission Properties of RE(RE=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,and Dy)and Mn Co-Doped Co0.6Zn0.4Fe2O4 Ferrites.Materials Chemistry and Physics,2012,131:575-580
[8]Hemeda D M,Hemeda O M.Electrical,Structural,Magnetic and Transport Properties of Zn2BaFe16O27 Doped with Cu2+.Journal of Magnetism and Magnetic Materials,2008,320:1557-1562
[9]Wang Yu,Pang Guangsheng,Chen Yan,et al.Preparation and Magnetic Properties of Fe3+-Nb5+Co-Doped SnO2.Journal ofSolid State Chemistry,2008,181:217-220
[10]Kowalczyk A,Falkowski M,Tolin'ski T,et al.Valence State and Magnetism of CeNi4Si and YbNi4Si.Solid State Communica-tions,2006,139:5-8