Effects of Annealing on Phase Evolution, Microstructure, and Magnetic Properties of Nanocrystalline Ball-Milled LiZnTi Ferrite

被引:45
|
作者
Kavanlooee, M. [1 ]
Hashemi, B. [1 ]
Maleki-Ghaleh, H. [2 ]
Kavanlooee, J. [3 ]
机构
[1] Shiraz Univ, Electroceram Ctr, Dept Mat Sci & Engn, Shiraz, Iran
[2] Sahand Univ Technol, Fac Mat Engn, Tabriz, Iran
[3] Ferdowsi Univ Mashhad, Fac Math Sci, Mashhad, Iran
关键词
Mechanochemical processing; nanostructured materials; LiZnTi ferrite; magnetic materials; ZN FERRITE; MECHANOSYNTHESIS; SUBSTITUTION;
D O I
10.1007/s11664-012-2235-y
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The influence of milling and subsequent annealing on the phase evolution, microstructure, and magnetic properties of lithium-zinc-titanium ferrite prepared by mechanical alloying (MA) was investigated. x-Ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, laser particle size analysis (LPSA), and vibrating sample magnetometry (VSM) were used to characterize the prepared Li0.4Zn0.4Ti0.2Fe2O4 compound. The crystallite size of single-phase LZT ferrite was 12 nm after 40 h of milling, being increased to 38 nm after annealing at 650A degrees C for 3 h. The magnetic properties of the milled nanostructured powder were extensively affected by the annealing temperature. Single-phase Li0.4Zn0.4Ti0.2Fe2O4 was formed by subsequent heat treatments of the as-milled powder at 650A degrees C, which is lower than the temperature associated with the conventional ceramic procedure.
引用
收藏
页码:3082 / 3086
页数:5
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