Erratum to: Microstructure and Magnetic Properties of SrFe12O19 Nano-sized Powders Prepared by Sol-Gel Auto-combustion Method with CTAB Surfactant

被引：0
作者：
S. M. Mirkazemi
S. Alamolhoda
Z. Ghiami
机构：
[1] Iran University of Science & Technology (IUST),School of Metallurgy and Materials Engineering
[2] Islamic Azad University,Department of Materials Engineering, Najafabad Branch
来源：
Journal of Superconductivity and Novel Magnetism | 2015年 / 28卷
关键词：
Strontium hexaferrite; Sol-gel auto-combustion; Surfactant; Magnetic properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this research, nano-sized powders of strontium hexaferrite were synthesized by sol-gel auto-combustion route using stoichiometric ratio of Fe/Sr. The effect cetyltrimethylammonium bromide (CTAB) addition on microstructure and magnetic properties of hexaferrite have been studied. The samples were characterized using X-ray diffraction (XRD), dynamic light scattering (DLS), vibration sample magnetometer (VSM), field emission scanning electron microscope (FESEM), and transmission electron microscope (TEM) techniques. The results revealed that CTAB addition causes a noticeable reduction in the amount of residual α-Fe2O3 phase, since presence of CTAB in the sol facilitates the entrance of Sr2+ ions into the reactions of hexaferrite formation. Also, the morphology of the particles was affected by CTAB addition. Irregular-shaped nanoparticles were synthesized without CTAB additions, while platelet-shaped nanoparticles were obtained by CTAB addition. The mechanism of strontium hexaferrite nanopowder formation has been explained. Magnetic measurements in the sample calcined at 800 °C for 1 h represented that CTAB addition increased the coercivity force (iHc) from 4.9 to 5.2 kOe and maximum magnetization (Mmax) from 48.4 to 60.4 emu/g, respectively.
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页码：1551 / 1558
页数：7
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