Comparison of the effects of cationic, anionic and nonionic surfactants on the properties of Sr-hexaferrite nanopowder synthesized by a sol-gel auto-combustion method

被引：20
作者：
Hasab, M. Ghobeiti
Ebrahimi, S. A. Seyyed [1 ]
Badiei, A.
机构：
[1] Univ Tehran, Sch Met & Mat Engn, Ctr Excellence Magnet Mat, Tehran, Iran
[2] Univ Tehran, Sch Chem, Tehran, Iran
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 316卷 / 02期
关键词：
Sr-hexaferrite; sol-gel auto-combustion; magnetic ceramic; nanopowder; surfactant;
D O I：
10.1016/j.jmmm.2007.02.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this research, Sr-hexaferrite nanopowders were synthesized by a sol-gel auto-combustion route using three different surfactant types: cationic, anionic and nonionic. The obtained powders were characterized by FTIR, XRD and SEM techniques and their physical properties were compared. The results showed a decrease in crystallite size of the resultant Sr-hexaferrite powder in presence of cationic and anionic surfactants, while there are no significant changes in presence of nonionic one. However, all three types of surfactants resulted in a decrease in the formation temperature of Sr-hexaferrite. (c) 2007 Elsevier B.V. All rights reserved.
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页码：E13 / E15
页数：3
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