全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

掺杂的Ni-Zn铁氧体磁性材料的制备与性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

以分析纯Fe2O3,NiO,ZnO,Al2O3,Pr6O11和WO3为原料,以Ni0.5Zn0.5MxFe2–xO4(M=Al,Pr,W;x=0~0.04)为基本配方,采用一步合成法制备了Ni–Zn铁氧体陶瓷,研究了掺杂对Ni–Zn铁氧体相组成、显微形貌和电磁性能的影响。结果表明掺杂Al3+,Pr3+和W6+的Ni–Zn铁氧体均能形成结晶完好的尖晶石相结构。材料致密,无晶粒异常长大。适当的金属阳离子替代可有效降低材料的磁损耗和介电损耗,提高截止频率,同时使铁氧体保持较高初始磁导率,高饱和磁化强度,高Curie温度等优良性能,从而制得高性能大功率高频Ni–Zn系铁氧体磁芯。

References

[1]  STOPPELS D.Developments in soft magnetic power ferrites[J].J Magn Magn Mater,1996,160:323–328. [2]SHOKROLLAHI H,JANGHORBAN K.Soft magnetic composite materials[J].J Mater Proc Technol,2007,189:1–12. [3]彭志坚,葛慧琳,李旦,等.一种制备铁氧体陶瓷磁材料新方法[P].中国发明专利,申请号:200810117838.3:2008–08–06.PENG Zhijian,GE Huilin,LI Dan,et al.A new approach to prepareferrite ceramic soft-magnetic materials(in Chinese).CN patent appli-cation,application No.200810117838.3:2008–08–06. [4]VERMA S,PRADHAN S D,PASRICHA R,et al.A novel low-tem-perature synthesis of nanosized NiZn ferrite[J].J Am Ceram Soc,2005,88:2597–2599. [5]翁兴园.NiZn软磁铁氧体材料运用与市场发展[J].新材料产业,2002,4:23–24.WENG X Y.Adv Mater Ind(in Chinese),2002,4:23–24. [6]李荫远,李国栋.铁氧体物理学(修订本)[M].北京:科学出版社,1978:77–80,313–314.LI Y Y,LI G D.Ferrites Physics(recension).Beijing:Science Press,1978:77–80,313–314. [7]ABO E L ATA A M,ATTIA S M,et al.AC conductivity and dielectric behavior of CoAlxFe2–xO4[J].Solid State Sci,2004,6:61–69. [8]HOCHSCHILD R,FUESS H.Rare-earth doping of nickel zinc ferrites[J].J Mater Chem,2000,10:539–542. [9]周志刚.铁氧体磁性材料[M].北京:科学出版社,1981:27–38,56–480.ZHOU Zhigang.Magnetic Ferrite Materials(in Chinese).Beijing:Science Press,1981:27–38,56–480. [10]PARK K S,NAM J H,OH J H.Magnetic properties of NiCuZn ferrites with addition of tungsten trioxide[J].J Magn Magn Mater,2001,226:1415–1417. [11]PRAKASH C.Effect of aluminum substitution on electrical conductivity and physical properties of zinc ferrite[J].J Mater Sci Lett,1987,6:651–652. [12]BROOK R J.Pore–grain boundary interactions and grain growth[J].J Am Ceram Soc,1969,52:56–59. [13]NAKAMURA T.Snoek’s limit in high-frequency permeability of polycrystalline Ni–Zn,Mg–Zn,and Ni–Zn–Cu spinel ferrites[J].J Appl Phys,2000,88(1):348–353. [14]THAKUR A,MATHUR P,SINGH M.Study of dielectric behaviour of Mn–Zn nano ferrites[J].J Phys Chem Solids,2007,683:378–381.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133