Magnetic properties of nanosize NiFe2O4 particles synthesized by sol-gel auto combustion method

被引：74
作者：
Azadmanjiri, J.
Ebrahimi, S. A. Seyyed
Salehani, H. K.
机构：
[1] Islamic Azad Univ, Damavand Branch, Damavand, Iran
[2] Univ Tehran, Dept Met & Mat, Fac Engn, Ctr Excellence Magnet Mat, Tehran, Iran
来源：
CERAMICS INTERNATIONAL | 2007年 / 33卷 / 08期
关键词：
sol-gel processes; magnetic properties; nickel ferrite; auto combustion;
D O I：
10.1016/j.ceramint.2006.05.007
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A nitrate-citrate get was prepared from metal nitrates and citric acid by sol-gel auto combustion process, in order to synthesize NiFe2O4 ferrite. X-ray diffraction showed the formation of NiFe2O4 and the inclusion of alpha-Fe2O3. However, with increasing the calcination temperature, this inclusion phase (alpha-Fe2O3) decreased. TEM was also used to characterize the microstructure of the nanosize NiFe2O4- Magnetization hysteresis of the nickel ferrite powders was performed at room temperature. It is shown that this powder which is composed of crystalline NiFe2O4 monophase, exhibited M-s = 54 (emu/g) at magnetic field of 2 (kOe). (c) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码：1623 / 1625
页数：3
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