EDTA对溶胶-凝胶法制备Z型铁氧体的影响
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摘要
以EDTA与柠檬酸作为联合络合剂,采用溶胶-凝胶燃烧法制备纯相Z型铁氧体,通过与柠檬酸为络合剂时制备的产物对比,探究EDTA对Z型铁氧体的影响。研究发现,采用两种络合剂制备出的Z型铁氧体,纯度高、磁性能好,在2GHz处的磁导率实部为2.5,同时使Z型铁氧体形成的温度区间变宽,但EDTA的加入只能使Z型铁氧体的烧成温度略微提高。
The pure Z-type ferrite was prepared by sol-gel combustion method with EDTA and citric acid as a joint complexing agent. By comparison with the product prepared with citric acid using as complexing agent,the effect of EDTA on preparation of Z-type ferrite was studied. The results show that the Z-type ferrite prepared with two kinds of joint complex has high purity,good magnetic properties,and the real part of its magnetic permeability is 2.5 at 2 GHz,and has wider temperature range for Z-type ferrite formation,but the addition of EDTA makes sintering temperature of Z-type ferrite increase slightly.
The pure Z-type ferrite was prepared by sol-gel combustion method with EDTA and citric acid as a joint complexing agent. By comparison with the product prepared with citric acid using as complexing agent,the effect of EDTA on preparation of Z-type ferrite was studied. The results show that the Z-type ferrite prepared with two kinds of joint complex has high purity,good magnetic properties,and the real part of its magnetic permeability is 2.5 at 2 GHz,and has wider temperature range for Z-type ferrite formation,but the addition of EDTA makes sintering temperature of Z-type ferrite increase slightly.
引文
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[17]席国喜,刘玉民,戚世梅,等.EDTA络合溶胶-凝胶法制备Mn-Zn铁氧体[J].硅酸盐通报,2009,28(1):194-198.
[18]LI J,ZHANG H F,SHAO G D,et al.Synthesis and properties of new multifunctional hexaferrite powders[J].Procedia Engineering,2015,102(12):1885-1889.
[2]刘祥萱,陈鑫,王煊军,等.磁性吸波材料的研究进展[J].表面技术,2013,42(4):104-109.
[3]邓龙江,周佩珩,翁小龙.磁性电磁吸波材料的研究现状与进展[C]//2005年功能材料学术年会.功能材料学术文集.成都:四川大学出版社,2005:8-10.
[4]詹群.铁氧体在抗EMI和隐身(吸波)材料中应用[J].中国传媒大学学报:自然科学版,2011,18(2):60-63.
[5]HUANG Xiaogu,ZHANG Jing,WANG Lixi,et al.Simple and reproducible preparation of barium hexagonal ferrite by adsorbent combustion method[J].Journal of Alloys and Compounds,2012,540:137-140.
[6]王二永,罗驹华.纳米钡铁氧体制备新进展[J].化工进展,2012,31(8):1767-1774.
[7]贾利军,张怀武,钟志勇,等.平面Z-型软磁铁氧体频率特性的研究[J].功能材料与器件学报,2002,8(4):411-414.
[8]PULLAR R C.Hexagonal ferrites:A review of the synthesis,properties and applications of hexaferriteceramics[J].Progress in Materials Science,2012,57(7):1191-1334.
[9]NAKAMURA T,HANKUI E.Control of high-frequency permeability in polycrystalline(Ba,Co)-Z-type hexagonal ferrite[J].Journal of Magnetism and Magnetic Materials,2003,257(2/3):158-164.
[10]余利华,姚静,冯则坤,等.掺杂稀土离子对Z型六角铁氧体微结构和磁性能的影响[J].武汉理工大学学报:交通科学与工程版,2012,36(4):869-872.
[11]BAI Yang,XU Fang,QIAO Lijie,et al.High frequency magnetic mechanism of Ni-substituted Co2Z hexagonal ferrite[J].Materials Research Bulletin,2009,44(4):898-900.
[12]ZHANG Xiaozhi,YUE Zhenxing,MENG Siqin,et al.Magnetic and electrical properties of Z-type hexaferrites sintered in different atmospheres[J].Materials Research Bulletin,2015,65(5):238-242.
[13]PULLAR R C,MARQUES P,AMARAL J,et al.Magnetic wood-based biomorphic Sr3Co2Fe24O41Z-type hexaferriteecoceramics made from cork templates[J].Materials and Design,2015,82(5):297-303.
[14]冯则坤,黄爱萍,徐丹丹,等.准微波频段应用的Co_2Z型平面六角铁氧体材料[J].磁性材料及器件,2008,39(6):19-22.
[15]杨锴,刘颖力,李元勋,等.溶胶-凝胶法制备Sr2+取代Co2Z及性能研究[J].压电与声光,2013,35(3):404-407.
[16]周克省,周丽芳,邓联文,等.溶胶-凝胶法制备的Z型铁氧体Sr3(Ni Zn)xCo2(1-x)Fe24O41的微波吸收性能[J].粉末冶金材料科学与工程,2014,19(3):486-492.
[17]席国喜,刘玉民,戚世梅,等.EDTA络合溶胶-凝胶法制备Mn-Zn铁氧体[J].硅酸盐通报,2009,28(1):194-198.
[18]LI J,ZHANG H F,SHAO G D,et al.Synthesis and properties of new multifunctional hexaferrite powders[J].Procedia Engineering,2015,102(12):1885-1889.