层状前体法制备锰掺杂钴铁氧体的性能
Properties of Mn-doped Cobalt Ferrite Prepared by Layered Precursors Method
摘 要
采用层状前体法制备了锰掺杂钴铁氧体Co1-xMnxFe2O4(x分别取0.1,0.2,0.3,04),用X射线衍射仪分析了它的物相与结构,用振动样品磁强计测试了它的磁性能,采用自制设备研究了其对巴克豪森信号的接收特性.结果表明:该铁氧体均以单相尖晶石结构存在;掺锰降低了材料的矫顽力,且锰含量越大,矫顽力越小;当x=0.1时材料的饱和磁化强度比钴铁氧体的要大,之后其值随锰含量的增加逐渐减小;Co1-xMnxFe2O4尖晶石铁氧体材料有望作为接收器件应用于巴克豪森磁弹传感器.
锰掺杂
磁性能
接收特性
layered precursor
Mn-dope
magnetic property
receiving property
Abstract
A series of Co1-xMnxFe2O4 (x can be 0.1,0.2,0.3 or 0.4) ferrite were prepared by layered double hydroxides (LDHS).The structure and magnetic properties were analyzed by means of XRD and vibrating sample magnetometer.The reception properties were tested by self-made sensor in which the calcination samples worked as receiving core.The results show that all samples existed with single-phase spinel structure.Mn-doped materials reduced the coercive force which decreased with increasing Mn content.Material with x=0.1 had a larger saturation magnetization value than that of cobalt ferrite,and the value decreased with increasing Mn content.Co1-xMnxFe2O4 is expected to be used in Barkhausen magneto-elastic sensors as receiving magnetic core.
中图分类号 O44 O469
所属栏目 新材料 新工艺
基金项目 国家自然科学基金资助项目(20076003)
收稿日期 2008/7/8
修改稿日期 2009/2/14
网络出版日期
作者单位点击查看
备注周小多(1982-),女,辽宁阜新人,硕士研究生.
引用该论文: ZHOU Xiao-duo,QI Xin,LI Feng. Properties of Mn-doped Cobalt Ferrite Prepared by Layered Precursors Method[J]. Materials for mechancial engineering, 2009, 33(7): 87～90
周小多,祁欣,李峰. 层状前体法制备锰掺杂钴铁氧体的性能[J]. 机械工程材料, 2009, 33(7): 87～90
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参考文献
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【2】EHIGAYA J,ASANO W,YAMAGUCHI A.Microstructure of sputtered CoFe2O4 film[J].Phys State,2002,191(2):359-369.
【3】PAULSEN J A,RING A P,LOCCH,et al.Manganese-substituted cobalt ferrite magnetostrictive materials for magnetic stress sensor applications[J].J Appl Phys,2005,97:1-3.
【4】FERNANDEZ J M,ULIBARRI M A,LABAJOS F M,et al.Sythnesis and characterization of polyoxvanadate-pillared Zn-Al layered double hydroxides: an x-ray absorption and diffraction study[J].J Mater Chem,1998,8:2507-2511.
【5】VUCCLIC M,JONES W,MOGGRIDE G D.Cation ordering in synthetic layered double hydroxides[J].Clays Clay Miner,1997,45:803-808.
【6】SUGIMOTO M.The past,present,and future of ferrites[J].J Am Ceram Soc,1999,82:269-280.
【7】BOUET L,TALHADES P,ROUSSET A.Relations between magneto-optical properties and reactivity in cobalt-manganese ferrite thin films and powders[J].J Magn Magn Mater,1996,153(3):389-396.
【8】祁欣,陈秀霞,周小多,等.层状前体法制备的钴尖晶石铁氧体纳米颗粒的磁性能[J].磁性材料与器件,2008,39(1):18-20.
【9】SHEKAR D,BHAME,JOY P A.Enhanced magnetostrictive properties of Mn substituted cobalt ferrite[J].J Appl Phys,2006,99:1-3.
【10】周彪,程福祥,廖春生,等.CoFe2-xMnO4纳米薄膜的结构、磁性及磁光效应研究[J].化学学报,2001,59(4):528-532.
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