Preparation of cobalt-zinc ferrite (Co0.8Zn0.2Fe2O4) nanopowder via combustion method and investigation of its magnetic properties

被引：64

作者：

Yousefi, M. H. ^{[1
]}

Manouchehri, S. ^{[1
,2
]}

Arab, A. ^{[1
]}

Mozaffari, M. ^{[2
,3
]}

Amiri, Gh. R. ^{[1
,4
]}

Amighian, J. ^{[5
]}

机构：

[1] Malek Ashtar Univ Technol, Dept Phys, Shahinshahr 8314534177, Iran

[2] Univ Isfahan, Fac Sci, Dept Phys, Esfahan 8174673441, Iran

[3] Razi Univ, Dept Phys, Taghbostah, Kermanshah, Iran

[4] Islamic Azad Univ, Dept Plasma Phys, Sci & Res Branch, Tehran, Iran

[5] Islamic Azad Univ, Najafabad Branch, Najafabad, Iran

来源：

MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 12期

关键词：

Nanostructures; Combustion; Magnetic properties; COPRECIPITATION METHOD; ELECTRICAL-PROPERTIES; THIN-FILMS; TEMPERATURE; NANOPARTICLES; POWDERS;

D O I：

10.1016/j.materresbull.2010.09.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cobalt-zinc ferrite (Co0.8Zn0.2Fe2O4) was prepared by combustion method, using cobalt, zinc and iron nitrates. The crystallinity of the as-burnt powder was developed by annealing at 700 degrees C. Crystalline phase was investigated by XRD. Using Williamson-Hall method, the average crystallite sizes for nanoparticles were determined to be about 27 nm before and 37 nm after annealing, and residual stresses for annealed particles were omitted. The morphology of the annealed sample was investigated by TEM and the mean particle size was determined to be about 30 nm. The final stoichiometry of the sample after annealing showed good agreement with the initial stoichiometry using atomic absorption spectrometry. Magnetic properties of the annealed sample such as saturation magnetization, remanence magnetization, and coercivity measured at room temperature were 70 emu/g, 14 emu/g, and 270 Oe, respectively. The Curie temperature of the sample was determined to be 350 degrees C using AC-susceptibility technique. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1792 / 1795

页数：4

共 29 条

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