Synthesis and optimization of the magnetic properties of aligned strontium ferrite nanowires

被引：8
|
作者：
Ebrahimi, Fatemeh [1 ]
Bakhshi, Saeed Reza [2 ]
Ashrafizadeh, Fakhreddin [1 ]
Ghasemi, Ali [2 ]
机构：
[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran
[2] Malek Ashtar Univ Technol, Dept Mat Engn, Shahin Shahr, Iran
来源：
MATERIALS RESEARCH BULLETIN | 2016年 / 76卷
关键词：
Magnetic materials; Nanostructures; Electron microscopy; Sol-gel chemistry; Magnetic properties;
D O I：
10.1016/j.materresbull.2015.11.061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High aspect ratio strontium hexaferrite nanowires were fabricated by dip coating in alumina template. Fe/Sr ratio was changed from 10 to 12 in precursor, and the samples were annealed at a range of temperatures 500-900 degrees C in order to optimize the magnetic properties of strontium ferrite in the form of nanowires. Field emission scanning electron microscope (FESEM) proved the formation of nanowires in the templates, while TEM images revealed a high degree of crystallinity. The ferrites were further characterized by X-ray diffraction (XRD) and energy dispersive X-ray spectrometer (EDS). Magnetic properties of the specimens were studied by a SQUID at 10-300 K. The results showed that the coercivity of packed density nanowires in the template was much less than that of the nanopowders. On the other hand, the coercivity of nanowires at ambient temperature was less than low temperature coercivity. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：240 / 246
页数：7
相关论文
共 50 条
  • [1] Synthesis and structure of strontium ferrite nanowires and nanotubes of high aspect ratio
    Ebrahimi, F.
    Ashrafizadeh, F.
    Bakhshi, S. R.
    Farle, M.
    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2016, 77 (03) : 708 - 717
  • [2] Magnetic and mechanical properties of strontium ferrite -: Rubber composites
    Urogiova, E.
    Hudec, I.
    Bellusova, D.
    KGK-KAUTSCHUK GUMMI KUNSTSTOFFE, 2006, 59 (05): : 224 - +
  • [3] Synthesis, Characterization and Microwave Absorption Properties of Polyaniline/Er-Doped Strontium Ferrite Nanocomposite
    Luo, Juhua
    Wang, Eryong
    Xu, Yang
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2016, 16 (06) : 6049 - 6054
  • [4] Effects of strontium silicate on structure and magnetic properties of electrospun strontium ferrite nanofibers
    Mingquan Liu
    Fuzhan Song
    Xiangqian Shen
    Yongwei Zhu
    Journal of Sol-Gel Science and Technology, 2010, 56 : 39 - 46
  • [5] Effects of strontium silicate on structure and magnetic properties of electrospun strontium ferrite nanofibers
    Liu, Mingquan
    Song, Fuzhan
    Shen, Xiangqian
    Zhu, Yongwei
    JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2010, 56 (01) : 39 - 46
  • [6] Evaluation of the magnetic and mechanical properties of rubber ferrite composites containing strontium ferrite
    Soloman, MA
    Kurian, P
    Anantharaman, MR
    Joy, PA
    POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, 2004, 43 (04) : 1013 - 1028
  • [7] Synthesis of strontium ferrite nanoparticles by coprecipitation in the presence of polyacrylic acid
    Chen, DH
    Chen, YY
    MATERIALS RESEARCH BULLETIN, 2002, 37 (04) : 801 - 810
  • [8] The magnetic properties of aligned M hexa-ferrite fibres
    Pullar, RC
    Bhattacharya, AK
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2006, 300 (02) : 490 - 499
  • [9] Optimization of synthesis conditions and the study of magnetic and dielectric properties for MgFe2O4 ferrite
    Druc, Alin C.
    Dumitrescu, Anca M.
    Borhan, Adrian I.
    Nica, Valentin
    Iordan, Alexandra R.
    Palamaru, Mircea N.
    CENTRAL EUROPEAN JOURNAL OF CHEMISTRY, 2013, 11 (08): : 1330 - 1342
  • [10] Structural and magnetic properties of Nd-doped strontium ferrite nanoparticles
    Luo, Juhua
    MATERIALS LETTERS, 2012, 80 : 162 - 164
12345