高压处理对铁氧体吸波特性影响的研究
|
摘要
吸波材料无论是在民用还是军事上都有着非常重要的研究与实用价值,而铁氧体吸波材料具有吸收强、吸收频带宽、成本低廉、制备工艺简单等优点,成为吸波材料研究领域的热门课题。在吸波材料的设计合成中,人们多注意物质的化学组分和合成方法等,制备吸波性能良好的铁氧体。利用高压这一极端条件设计制备吸波材料却尚未见报道。本文致力于研究压力对材料吸波性能的影响,以期制备高性能铁氧体吸波材料。研究结果表明,高压处理可以明显改善四氧化三铁的微波电磁参数,提高其反射损耗,增大吸收带宽,得到了比较理想的结果。同时,用陶瓷法制备钡铁氧体,测试其反射损耗,这样化学和高压处理两种方法在一定的程度上形成了比较。本文的研究工作为吸波材料的设计合成提供新的研究思路和方法,为铁氧体吸波材料的进一步发展注入了新的活力。
本文研究的主要内容以及得到的结论有以下方面:
(1)用陶瓷法制备了M型钡铁氧体,并对其进行了X射线衍射(XRD)分析和扫描电镜(SEM)的表征,结果表明:在1300℃下煅烧3h空冷后经研磨得到均匀的铁氧体粉末,经XRD分析为较纯单相钡铁氧体,从SEM可以看出钡铁氧体的形貌主要呈六角形分布,晶粒大小在1.4μm～3.2μm之间;
(2)用聚氨酯软质泡沫为基材,分别充填铁氧体,碳粉以及他们的混合体,制备了平板,通过弓形反射法测量聚氨酯软质泡沫复合材料的微波吸收性能,测试频段为4～8GHz。结果表明:充填5g铁氧体和15g炭黑的平板具有良好的吸波效果,反射系数约为-7dB。
(3)对Fe_3O_4粉末进行2GPa、4GPa、6GPa的高压处理,经XRD分析并未出现新相,但是衍射峰存在宽化的现象,SEM显示出粒径有所减小;
(4)用矢量网络分析仪,对高压处理后的Fe_3O_4进行电磁参数的测量。结果表明:高压处理能有效调整Fe_3O_4的微波电磁参数,与常压相比,有较大的利好变化。磁导率的实部μ′增大和介电常数的实部ε′减小,这有利于实现阻抗匹配;磁导率的虚部μ′和介电常数的虚部ε″都有较大增加,这有利于提高能量衰减,满足吸波材料的两大条件。
(5)经模拟得到2mm厚度下不同压力处理后的Fe_3O_4粉末在2～18GHz范围内的反射损耗曲线,反射损耗都比常压下要小,且峰值变大,带宽变宽,特别是处理压力为2GPa时的Fe_3O_4微波吸收性能最好,反射损耗峰值达-24dB,反射损耗小于-8dB的带宽达到7.5GHz。结果说明高压处理有利于制备轻、薄、宽的铁氧体吸波材料。
Absorbing materials has a very important practical value in civilian and military, the Ferrite-absorbing materials has the advantages of strong absorbability,matching impedance,good absorption frequency bandwidth,low cost,simple preparation,so it becomes the hot topic.In the design and synthesis of absorbing materials,people pay more attention to the chemical composition and methods of synthesis of substances, then made the good performance of ferrite.Althought using the extreme condition high pressure to design absorbing material has not been reported.This paper is dedicated to research high pressure treatment of absorbing properties,hope to prepare high-performance ferrite absorbing materials.The results show that: high-pressure could significantly improved the microwave electromagnetic parameters and enhanced its reflection loss,increased absorption bandwidth of ferrite, had been received satisfactory results.At the same time,also used Chemistry method -ceramic technique to make the ferrites,this two methods could be compared in certain basic.This paper provided a new ideas and research methods to research work of absorbing materials,and injected new vitality to ferrite absorbing materials for the further development.
In this paper,it mainly obtained the conclusions as the following aspect:
(1)Samples of M-type barium ferrites(BaM)were synthesized using the ceramic technique,phase identifications were performed by the X-ray power diffraction (XRD)the microstructure features were observed by scanning electron microscope (SEM),the results showed that:calcined inair at 1300℃for 3h,after the attrition,it obtained the uniformity ferrites.All samples were identified to be single phase with only M-type hexagonal barium ferrites,no other phases were detected.BaM particles are approximating hexagonal-shaped and the average grain size was about 1.4-3.2μm.
(2)Carbon black,barium ferrite and the mixture of them were filled in the soft foamed polyurethane.The microwave absorption properties were measured by the arch reflection method from 4 to 8GHz using an HP 8320B vector network analyzer (VNA).The experiment indicated:filled with 5g ferrites and 15g carbon black plate has better absorbability,the reflectance approximately was-7dB.
(3)Carried on 2GPa,4GPa,the 6GPa processing to Fe_3O_4,using the XRD and SEM, they had not appeared the new phase,but diffraction peak was widened,the particle size obviously had reducesd.
(4)With the vector network analyzer to measure the electromagnetism parameter of the sample,the results showed that:high pressure can be good for adjusting microwave electromagnetic parameter,compared to normal pressure,effect of high pressure,μ′increased with increasing frequency,ε′decreased,it was propitious to realize the impedance matching;μ″andε″both increased,it was propitious to enhance energy attenuation.
(5)The reflection loss of one-layer absorber was numerically calculated from 2 to 18GHz under 2mm thickness.The reflection loss were all decreased,peak value and bandwidth were both increased,especially when the pressure was 2GPa,the bandwidth could reached 7.5GHz for reflcting rate below-8dB,the biggest reflection loss was-24dB.All this proved that high pressure can be good for preparing ferrite absorbing material with properties of light,thin and width.
本文研究的主要内容以及得到的结论有以下方面:
(1)用陶瓷法制备了M型钡铁氧体,并对其进行了X射线衍射(XRD)分析和扫描电镜(SEM)的表征,结果表明:在1300℃下煅烧3h空冷后经研磨得到均匀的铁氧体粉末,经XRD分析为较纯单相钡铁氧体,从SEM可以看出钡铁氧体的形貌主要呈六角形分布,晶粒大小在1.4μm～3.2μm之间;
(2)用聚氨酯软质泡沫为基材,分别充填铁氧体,碳粉以及他们的混合体,制备了平板,通过弓形反射法测量聚氨酯软质泡沫复合材料的微波吸收性能,测试频段为4～8GHz。结果表明:充填5g铁氧体和15g炭黑的平板具有良好的吸波效果,反射系数约为-7dB。
(3)对Fe_3O_4粉末进行2GPa、4GPa、6GPa的高压处理,经XRD分析并未出现新相,但是衍射峰存在宽化的现象,SEM显示出粒径有所减小;
(4)用矢量网络分析仪,对高压处理后的Fe_3O_4进行电磁参数的测量。结果表明:高压处理能有效调整Fe_3O_4的微波电磁参数,与常压相比,有较大的利好变化。磁导率的实部μ′增大和介电常数的实部ε′减小,这有利于实现阻抗匹配;磁导率的虚部μ′和介电常数的虚部ε″都有较大增加,这有利于提高能量衰减,满足吸波材料的两大条件。
(5)经模拟得到2mm厚度下不同压力处理后的Fe_3O_4粉末在2～18GHz范围内的反射损耗曲线,反射损耗都比常压下要小,且峰值变大,带宽变宽,特别是处理压力为2GPa时的Fe_3O_4微波吸收性能最好,反射损耗峰值达-24dB,反射损耗小于-8dB的带宽达到7.5GHz。结果说明高压处理有利于制备轻、薄、宽的铁氧体吸波材料。
Absorbing materials has a very important practical value in civilian and military, the Ferrite-absorbing materials has the advantages of strong absorbability,matching impedance,good absorption frequency bandwidth,low cost,simple preparation,so it becomes the hot topic.In the design and synthesis of absorbing materials,people pay more attention to the chemical composition and methods of synthesis of substances, then made the good performance of ferrite.Althought using the extreme condition high pressure to design absorbing material has not been reported.This paper is dedicated to research high pressure treatment of absorbing properties,hope to prepare high-performance ferrite absorbing materials.The results show that: high-pressure could significantly improved the microwave electromagnetic parameters and enhanced its reflection loss,increased absorption bandwidth of ferrite, had been received satisfactory results.At the same time,also used Chemistry method -ceramic technique to make the ferrites,this two methods could be compared in certain basic.This paper provided a new ideas and research methods to research work of absorbing materials,and injected new vitality to ferrite absorbing materials for the further development.
In this paper,it mainly obtained the conclusions as the following aspect:
(1)Samples of M-type barium ferrites(BaM)were synthesized using the ceramic technique,phase identifications were performed by the X-ray power diffraction (XRD)the microstructure features were observed by scanning electron microscope (SEM),the results showed that:calcined inair at 1300℃for 3h,after the attrition,it obtained the uniformity ferrites.All samples were identified to be single phase with only M-type hexagonal barium ferrites,no other phases were detected.BaM particles are approximating hexagonal-shaped and the average grain size was about 1.4-3.2μm.
(2)Carbon black,barium ferrite and the mixture of them were filled in the soft foamed polyurethane.The microwave absorption properties were measured by the arch reflection method from 4 to 8GHz using an HP 8320B vector network analyzer (VNA).The experiment indicated:filled with 5g ferrites and 15g carbon black plate has better absorbability,the reflectance approximately was-7dB.
(3)Carried on 2GPa,4GPa,the 6GPa processing to Fe_3O_4,using the XRD and SEM, they had not appeared the new phase,but diffraction peak was widened,the particle size obviously had reducesd.
(4)With the vector network analyzer to measure the electromagnetism parameter of the sample,the results showed that:high pressure can be good for adjusting microwave electromagnetic parameter,compared to normal pressure,effect of high pressure,μ′increased with increasing frequency,ε′decreased,it was propitious to realize the impedance matching;μ″andε″both increased,it was propitious to enhance energy attenuation.
(5)The reflection loss of one-layer absorber was numerically calculated from 2 to 18GHz under 2mm thickness.The reflection loss were all decreased,peak value and bandwidth were both increased,especially when the pressure was 2GPa,the bandwidth could reached 7.5GHz for reflcting rate below-8dB,the biggest reflection loss was-24dB.All this proved that high pressure can be good for preparing ferrite absorbing material with properties of light,thin and width.
引文
[1]吴明忠.雷达吸波材料的现状与发展趋势[J].磁性材料及器件,1997,28(2):26-30
[2]罗敏,陈震兵,陈小立等.纳米吸波材料在人体防护中的现状及发展方向[J].化学世界,2001.6:324-326
[3]王智永,熊克敏,刘俊能等.单层薄型双波段雷达吸收涂层的研制[f].航空材料学报,1998,18(1):51-55
[4]李茂琼,胡永茂,方静华等.纳米相电磁波吸收剂的研究现状与趋势[J].材料导报,2002,16(9):15-17
[5]邵蔚等.吸波材料用吸收剂的研究及应用现状[J].兵器材料科学与工程,2003,26(4):65-68
[6]范学伟,姚敏琪,舒杨等.GHz铁氧体电磁波吸收材料的研究[J].宇航材料与工艺,2004,3:30-33
[7]国家环境保护局监督管理司编,电磁辐射环境影响及电磁兼容学会讨论论文集.北京:中国环境科学出版社,1996
[8]巩晓阳,董企铭.吸波材料的研究现状与进展[J].河南科技大学学报,2003,24(20):19-22.
[9]邓龙江,谢建良,梁迪飞等.磁参数对六角铁氧体RAM温度稳定性影响[J].电子科技大学学报,2000,29(1):61-64
[10]王自荣.激光与雷达复合隐身分析[f].上海航天,2001,4:34-37
[11]胡传析.隐身涂层技术[M].北京:化学工业出版社,2004.
[12]郭清泉,陈焕钦.涂覆型军品隐身包装的研究现状与发展趋势[J].涂料工业,2003,33(6):42
[13]高焕方,陈一农,张捷等.吸波涂料的研究现状[J].表面技术,2003,23(5):1-3
[14]曹克广.国外微波隐身材料的发展及现状[J].抚顺石油学院学报,1997,17(2):29-32
[15]何显运,张兴华,周彦豪.吸波材料的研究进展[f].功能材料增刊,2001,10:592-595
[16]秦嵘,陈雷.国外新型隐身材料研究动态[J].宇航材料工艺,1997 4:17-19
[17]周敏,杨觉明,周建军.吸波材料研究进展[J].西安工业学院学报,2000,20(4):296-302
[18]陈恩霖.雷达吸波材料与吸波结构[J].现代雷达,1996,4:95-104
[19]阳开新.铁氧体吸波材料及其应用[J].磁性材料及器件,1996,27(3):19-23
[20]邓龙江,谢建良,梁迪飞等.磁性材料在RAM中的应用及其进展[J].功能材料,1999,30(2):118-121
[21]张永祥,耿香月,李玲霞等.六角结构磁铅石铁氧体吸波机制的设计与研究[J].天津大学学报,1999,32(5),611-614
[22]姚学标,胡国光,伊萍等.BaCoZnTi-W型铁氧体微波吸收特性的研究田.磁性材料及器件,1999,30(3):47-50
[23]吴晓光,车哗秋等.国外微波吸收材料[M].国防科技大学出版社,1992
[24]Kajii H.,Araki H.,Zakhjdov A A.,et al.Alkali Metal Doping Effect in Conducting Polymer C_(60)Composites,Low field Microwave Absorption and Susce Ptibility Study[J].ynthetic Metals,1999(103):2388-2391
[25]徐劲峰,郭方方,徐政.六角晶系钡铁氧体纳米晶的制备和表征[J].同济大学学报(自然科学版),2004,32(7):929-932
[26]胡庆荣,姚学标,尹平等.BaMnZnCo-W型铁氧体微波吸收特性研究[J].安徽大学学报,2001,25(2):71-74
[27]陈圣华,胡国光,娄明连.BaMnZnCo-W型铁氧体的微波吸收特性[J].磁性材料及器件,2002,33(4):11-13
[28]何玉平,胡国光,姚学标等.BaMnZnCoTi-W型铁氧体微波吸收剂的制备和特性研究[J].功能材料,2002,33(1):36-38
[29]罗发等.高温吸波材料研究现状[J].宇航材料工艺,2002,1:8-11
[30]李国栋,云月厚,部显康等.稀土材料微波吸收特性的研究[J].磁性材料及器件,2001,32(5):14-16
[31]赵东林,周万城.涂敷型吸波材料及涂层结构设计[J].兵器材料科学与工程,1998,21(4):58-62
[32]A.N.Yusoff,M.H.Abdullah.Microwave electromagnetic and absorption properties of some LiZn ferrites.J.Magn.Magn.Mater.,269(2004):271-280
[33]Giannakopoulou,L.Kompotiatis,A.Kontogeorgakos,G.Kordas.Microwave behavior of ferrites prepared via sol-gel method.J.Magn.Magn.Mater.,2002(246):360-365
[34]张海军,姚熹,张良莹等.BaPbZnCo-Y型铁氧体的柠檬酸溶胶凝胶合成及其微波性能研究[J].功能材料,2003 34(1):37-38
[35]S.Sugimoto,S.Kondo,K.Okayama,et al.M-type Ferrite Composite as A Microwave Absorber with Wide Bandwidth in the GHz Range.IEEE Trans.Magn.,1999,135(5):3154-3156
[36]Okayma K.,Ata H.,et al.Electromagnetic wave absorption properties of BaFe_(12-x)(Ti_(0.5)Mn_(0.5))_x O_(19).J.Appl.Magn.Soc.Jap.,1998,22(4-2):297-300
[37]邓龙江,过壁君.新型六角晶系铁氧体吸收剂的研制及应用[J].宇航材料工艺,1991.5:46-50
[38]罗辉华.六角铁氧体的电磁波吸收特性研究[D].四川:成都电子科技大学,2002
[39]徐劲峰,郭方方,徐政.六角晶系铁氧体纳米晶微波吸收剂的微结构和磁性能[J].磁性材料与器件,2005 36(1):20-28
[40]Hiroyasu Ota,Masafumi Kimura,Risaburo Sato et al.Broadband microwave absorber using M-type hexagonal ferrite.IEEE,1999:590-593
[41]娄明连,阐涛.含SrFe12019铁氧体吸波材料的磁织构化处理效应的研究[J].安徽大学学报(自然科学版),2001,25(1):37-41
[42]曾祥云,李家埃,马铁军.镀镍炭毡复合材料的微波吸收特性[J].材料研究学报,199812(2):171-173
[43]Shengping Ruan,Baokun Xu,Hui Suo et al.Microwave absorptive behavior of ZnCo-substituted W -type Ba hexaferrite nanocrystalline composite material.J.Magn.Magn.Mater.,212(2000):175-177
[44]M.R.Meshram,Nawal K.Agrawal,Bharoti Sinha,P S.Misra.Characterization of M-type barium hexagonal ferrite-based wide band microwave absorber.J.Magn.Magn.Mater.,271(2004):207-214
[45]冯则坤,何华辉.宽频带橡胶复合铁氧体电磁波吸波材料研究[J].功能材料,2003.34(5):532-534
[46]王翠平,娄明连.双层结构磁介质电波吸收材料的研究[J].安徽大学学报(自然科学版),2005,29(1):40-43
[47]都有为.铁氧体.[M].江苏:科学技术出版社,1996
[48]廖绍彬.铁磁学(下册)[M].北京:科学出版社,1998
[49]宛德福,马兴隆.磁性物理学[M].四川:成都电子科技大学出版社,2001
[50]姚学标,胡国光,尹平等.平面六角晶系铁氧体混合材料涂层的优良吸波特性[J].功能材料,2001,32(1):40-41
[51]Ukesh C.Dimri,Subhash C.Kashyap,D.C.Dube,Electrical and magnetic properties ofbarium hexaferrite nanoparticles prepared by citrate precursor method.Ceram.Intemational.2004(30):1623-1626
[52]周志刚.铁氧体磁性材料[M].北京:科学出版社,1981
[53]韩志全.多晶微波铁氧体材料中的铁磁弛豫过程研究[J].磁性材料及器件,2003,34(2): 1-3
[54]E.P.Wohlfarth主编,刘增民等译.铁磁材料—磁有序物质特性手册(卷11)[M].北京:电子工业出版社,1993
[55]蒋仁培,魏克珠.微波铁氧体理论与技术[M].北京:科学出版社,1982
[56]Nortier J R.Table for the design of microwave absorber.Microwave Journal,1987,23(3):34
[57]J.V.Badding,J.F.Meng,and D.A.Polvani.Pressure tuning in the search for new and improved solid state material.Chem.Mater,1998.10:2889
[58]王英华.X光衍射基础.北京:原子能出版社,1987.258-260
[59]余煜.材料结构分析基础.北京:科学出版社,2000.284-296
[60]Tofani S,Ondrejua A,Kanda M.Bistatic scattering of absorbing materials from 30 to 1000MHz.IEEE Trans Electromagn Compat,1992,34(3):304-307
[61]饶克谨,赵伯琳,高正平.电路模拟吸收材料—原理、特性及设计方法,电子科技大学学报.1992,(2):164-170
[62]罗军明,李永绣,邓莉萍.共沉淀法合成Yb~(3+):Y_2O_3纳米粉及透明陶瓷的性能.无机化学学报.2008,24(2):260-264
[63]黄永杰,磁性材料[M].北京:电子工业出版社,1994:165-208
[64]肖奇,邱冠周,等.中国粉体技术.1999,5(2):25-28
[65]谭小平,古映莹.尖晶石型超微铁氧体粉末合成方法进展,磁性材料与器件,2002,4(33):17-20
[66]GBenito,M P Morales,J Requena,et al.Barium hexaferrite monodispersed nanoparticles prepared by the ceramic method.Journal of Magnetism and Magnetic Materials,2001,(234):65-72
[67]卓长平,张雄,李敏,sol-gel法制备之纳米钡铁氧体微波性能的研究[J].电子元件与材料,2005(5):14-16
[68]张海军,姚熹,张良莹.BaFe_(12)Q_(19)的溶胶—凝胶合成及其微波性能研究[J].功能材料,2002,33(4):376-378
[69]卓长平,张雄,李敏,sol-gel法制备之纳米钡铁氧体微波性能的研究[J].电子元件与材料,2005(5):14-16
[70]付步芳.王利.聚氨酯泡沫塑料基吸波材料及其应用.材料开发与应用.2000,15(6):38-42
[71]赵建忠.赵阳升.石定贤.喷雾法合成气体水合物的实验研究.辽宁工程技术大学学 报.2006,25(2):286-289
[72]Huang B,Jiang H G,Perez R J,et al.Nanostructured Materials,1999,11(8):1009-1016.
[73]Shui Y,Zheng F L,Xu D P.Chinese Journal of High Pressure Physics 1997,4:245
[74]Jiang J J,He H Y,Deng L W,et al.Effect of Rare Earth Elements on Microwave Characteristics of CoFeCrRE Alloys with Higher Magnetic Loss[J].Joumal o the Chinese Rare Earth Society,2004,22(5):627-631.
[75]Wan D F,Ma X R.Magnetism Physics[M].Sichuan:Chengdu Electron Science University Press,2001.
[76]Han Z Q.Channels of Energy Transfer on Polycrystalline Microwave Ferrite[J].J Magn Mater Devices,2003,34(2):1-3.
[77]Jiang R P,Wei K Z.The Theory and Technology of Microwave Ferrite[M].Beijing Science Press,1982.
[78]Gan Z P,Guan J G,Deng H Y,et al.Chinese Journal of electronics,2003,31(6):918-920.
[79]童国秀,王维,官建国等.SiO_2纳米壳的厚度对羰基铁/SiO_2核壳复合粒子的性能影响.无机材料学报,2006,21(6):1461-1466
[2]罗敏,陈震兵,陈小立等.纳米吸波材料在人体防护中的现状及发展方向[J].化学世界,2001.6:324-326
[3]王智永,熊克敏,刘俊能等.单层薄型双波段雷达吸收涂层的研制[f].航空材料学报,1998,18(1):51-55
[4]李茂琼,胡永茂,方静华等.纳米相电磁波吸收剂的研究现状与趋势[J].材料导报,2002,16(9):15-17
[5]邵蔚等.吸波材料用吸收剂的研究及应用现状[J].兵器材料科学与工程,2003,26(4):65-68
[6]范学伟,姚敏琪,舒杨等.GHz铁氧体电磁波吸收材料的研究[J].宇航材料与工艺,2004,3:30-33
[7]国家环境保护局监督管理司编,电磁辐射环境影响及电磁兼容学会讨论论文集.北京:中国环境科学出版社,1996
[8]巩晓阳,董企铭.吸波材料的研究现状与进展[J].河南科技大学学报,2003,24(20):19-22.
[9]邓龙江,谢建良,梁迪飞等.磁参数对六角铁氧体RAM温度稳定性影响[J].电子科技大学学报,2000,29(1):61-64
[10]王自荣.激光与雷达复合隐身分析[f].上海航天,2001,4:34-37
[11]胡传析.隐身涂层技术[M].北京:化学工业出版社,2004.
[12]郭清泉,陈焕钦.涂覆型军品隐身包装的研究现状与发展趋势[J].涂料工业,2003,33(6):42
[13]高焕方,陈一农,张捷等.吸波涂料的研究现状[J].表面技术,2003,23(5):1-3
[14]曹克广.国外微波隐身材料的发展及现状[J].抚顺石油学院学报,1997,17(2):29-32
[15]何显运,张兴华,周彦豪.吸波材料的研究进展[f].功能材料增刊,2001,10:592-595
[16]秦嵘,陈雷.国外新型隐身材料研究动态[J].宇航材料工艺,1997 4:17-19
[17]周敏,杨觉明,周建军.吸波材料研究进展[J].西安工业学院学报,2000,20(4):296-302
[18]陈恩霖.雷达吸波材料与吸波结构[J].现代雷达,1996,4:95-104
[19]阳开新.铁氧体吸波材料及其应用[J].磁性材料及器件,1996,27(3):19-23
[20]邓龙江,谢建良,梁迪飞等.磁性材料在RAM中的应用及其进展[J].功能材料,1999,30(2):118-121
[21]张永祥,耿香月,李玲霞等.六角结构磁铅石铁氧体吸波机制的设计与研究[J].天津大学学报,1999,32(5),611-614
[22]姚学标,胡国光,伊萍等.BaCoZnTi-W型铁氧体微波吸收特性的研究田.磁性材料及器件,1999,30(3):47-50
[23]吴晓光,车哗秋等.国外微波吸收材料[M].国防科技大学出版社,1992
[24]Kajii H.,Araki H.,Zakhjdov A A.,et al.Alkali Metal Doping Effect in Conducting Polymer C_(60)Composites,Low field Microwave Absorption and Susce Ptibility Study[J].ynthetic Metals,1999(103):2388-2391
[25]徐劲峰,郭方方,徐政.六角晶系钡铁氧体纳米晶的制备和表征[J].同济大学学报(自然科学版),2004,32(7):929-932
[26]胡庆荣,姚学标,尹平等.BaMnZnCo-W型铁氧体微波吸收特性研究[J].安徽大学学报,2001,25(2):71-74
[27]陈圣华,胡国光,娄明连.BaMnZnCo-W型铁氧体的微波吸收特性[J].磁性材料及器件,2002,33(4):11-13
[28]何玉平,胡国光,姚学标等.BaMnZnCoTi-W型铁氧体微波吸收剂的制备和特性研究[J].功能材料,2002,33(1):36-38
[29]罗发等.高温吸波材料研究现状[J].宇航材料工艺,2002,1:8-11
[30]李国栋,云月厚,部显康等.稀土材料微波吸收特性的研究[J].磁性材料及器件,2001,32(5):14-16
[31]赵东林,周万城.涂敷型吸波材料及涂层结构设计[J].兵器材料科学与工程,1998,21(4):58-62
[32]A.N.Yusoff,M.H.Abdullah.Microwave electromagnetic and absorption properties of some LiZn ferrites.J.Magn.Magn.Mater.,269(2004):271-280
[33]Giannakopoulou,L.Kompotiatis,A.Kontogeorgakos,G.Kordas.Microwave behavior of ferrites prepared via sol-gel method.J.Magn.Magn.Mater.,2002(246):360-365
[34]张海军,姚熹,张良莹等.BaPbZnCo-Y型铁氧体的柠檬酸溶胶凝胶合成及其微波性能研究[J].功能材料,2003 34(1):37-38
[35]S.Sugimoto,S.Kondo,K.Okayama,et al.M-type Ferrite Composite as A Microwave Absorber with Wide Bandwidth in the GHz Range.IEEE Trans.Magn.,1999,135(5):3154-3156
[36]Okayma K.,Ata H.,et al.Electromagnetic wave absorption properties of BaFe_(12-x)(Ti_(0.5)Mn_(0.5))_x O_(19).J.Appl.Magn.Soc.Jap.,1998,22(4-2):297-300
[37]邓龙江,过壁君.新型六角晶系铁氧体吸收剂的研制及应用[J].宇航材料工艺,1991.5:46-50
[38]罗辉华.六角铁氧体的电磁波吸收特性研究[D].四川:成都电子科技大学,2002
[39]徐劲峰,郭方方,徐政.六角晶系铁氧体纳米晶微波吸收剂的微结构和磁性能[J].磁性材料与器件,2005 36(1):20-28
[40]Hiroyasu Ota,Masafumi Kimura,Risaburo Sato et al.Broadband microwave absorber using M-type hexagonal ferrite.IEEE,1999:590-593
[41]娄明连,阐涛.含SrFe12019铁氧体吸波材料的磁织构化处理效应的研究[J].安徽大学学报(自然科学版),2001,25(1):37-41
[42]曾祥云,李家埃,马铁军.镀镍炭毡复合材料的微波吸收特性[J].材料研究学报,199812(2):171-173
[43]Shengping Ruan,Baokun Xu,Hui Suo et al.Microwave absorptive behavior of ZnCo-substituted W -type Ba hexaferrite nanocrystalline composite material.J.Magn.Magn.Mater.,212(2000):175-177
[44]M.R.Meshram,Nawal K.Agrawal,Bharoti Sinha,P S.Misra.Characterization of M-type barium hexagonal ferrite-based wide band microwave absorber.J.Magn.Magn.Mater.,271(2004):207-214
[45]冯则坤,何华辉.宽频带橡胶复合铁氧体电磁波吸波材料研究[J].功能材料,2003.34(5):532-534
[46]王翠平,娄明连.双层结构磁介质电波吸收材料的研究[J].安徽大学学报(自然科学版),2005,29(1):40-43
[47]都有为.铁氧体.[M].江苏:科学技术出版社,1996
[48]廖绍彬.铁磁学(下册)[M].北京:科学出版社,1998
[49]宛德福,马兴隆.磁性物理学[M].四川:成都电子科技大学出版社,2001
[50]姚学标,胡国光,尹平等.平面六角晶系铁氧体混合材料涂层的优良吸波特性[J].功能材料,2001,32(1):40-41
[51]Ukesh C.Dimri,Subhash C.Kashyap,D.C.Dube,Electrical and magnetic properties ofbarium hexaferrite nanoparticles prepared by citrate precursor method.Ceram.Intemational.2004(30):1623-1626
[52]周志刚.铁氧体磁性材料[M].北京:科学出版社,1981
[53]韩志全.多晶微波铁氧体材料中的铁磁弛豫过程研究[J].磁性材料及器件,2003,34(2): 1-3
[54]E.P.Wohlfarth主编,刘增民等译.铁磁材料—磁有序物质特性手册(卷11)[M].北京:电子工业出版社,1993
[55]蒋仁培,魏克珠.微波铁氧体理论与技术[M].北京:科学出版社,1982
[56]Nortier J R.Table for the design of microwave absorber.Microwave Journal,1987,23(3):34
[57]J.V.Badding,J.F.Meng,and D.A.Polvani.Pressure tuning in the search for new and improved solid state material.Chem.Mater,1998.10:2889
[58]王英华.X光衍射基础.北京:原子能出版社,1987.258-260
[59]余煜.材料结构分析基础.北京:科学出版社,2000.284-296
[60]Tofani S,Ondrejua A,Kanda M.Bistatic scattering of absorbing materials from 30 to 1000MHz.IEEE Trans Electromagn Compat,1992,34(3):304-307
[61]饶克谨,赵伯琳,高正平.电路模拟吸收材料—原理、特性及设计方法,电子科技大学学报.1992,(2):164-170
[62]罗军明,李永绣,邓莉萍.共沉淀法合成Yb~(3+):Y_2O_3纳米粉及透明陶瓷的性能.无机化学学报.2008,24(2):260-264
[63]黄永杰,磁性材料[M].北京:电子工业出版社,1994:165-208
[64]肖奇,邱冠周,等.中国粉体技术.1999,5(2):25-28
[65]谭小平,古映莹.尖晶石型超微铁氧体粉末合成方法进展,磁性材料与器件,2002,4(33):17-20
[66]GBenito,M P Morales,J Requena,et al.Barium hexaferrite monodispersed nanoparticles prepared by the ceramic method.Journal of Magnetism and Magnetic Materials,2001,(234):65-72
[67]卓长平,张雄,李敏,sol-gel法制备之纳米钡铁氧体微波性能的研究[J].电子元件与材料,2005(5):14-16
[68]张海军,姚熹,张良莹.BaFe_(12)Q_(19)的溶胶—凝胶合成及其微波性能研究[J].功能材料,2002,33(4):376-378
[69]卓长平,张雄,李敏,sol-gel法制备之纳米钡铁氧体微波性能的研究[J].电子元件与材料,2005(5):14-16
[70]付步芳.王利.聚氨酯泡沫塑料基吸波材料及其应用.材料开发与应用.2000,15(6):38-42
[71]赵建忠.赵阳升.石定贤.喷雾法合成气体水合物的实验研究.辽宁工程技术大学学 报.2006,25(2):286-289
[72]Huang B,Jiang H G,Perez R J,et al.Nanostructured Materials,1999,11(8):1009-1016.
[73]Shui Y,Zheng F L,Xu D P.Chinese Journal of High Pressure Physics 1997,4:245
[74]Jiang J J,He H Y,Deng L W,et al.Effect of Rare Earth Elements on Microwave Characteristics of CoFeCrRE Alloys with Higher Magnetic Loss[J].Joumal o the Chinese Rare Earth Society,2004,22(5):627-631.
[75]Wan D F,Ma X R.Magnetism Physics[M].Sichuan:Chengdu Electron Science University Press,2001.
[76]Han Z Q.Channels of Energy Transfer on Polycrystalline Microwave Ferrite[J].J Magn Mater Devices,2003,34(2):1-3.
[77]Jiang R P,Wei K Z.The Theory and Technology of Microwave Ferrite[M].Beijing Science Press,1982.
[78]Gan Z P,Guan J G,Deng H Y,et al.Chinese Journal of electronics,2003,31(6):918-920.
[79]童国秀,王维,官建国等.SiO_2纳米壳的厚度对羰基铁/SiO_2核壳复合粒子的性能影响.无机材料学报,2006,21(6):1461-1466