文档介绍：
21 3
2007
6 CHINESEJOURNALOFMATERIALSRESEARCH June2007
∗
–
Æ
(
710072)
Æ
Æ
Æ
, –(SrFe12 O19).
X–(XRD) (VSM) (FESEM) ,
Æ
. :
∼
,
. 600 700 , 900 , 800
2
Æ
H
σ·
c= kA/m, s= A m /kg.
Æ
Æ
, –, ,
TM277 1005-3093(2007)03-0324-05
Nano–sized powders of SrFe12O19 synthesized by the
sol–gel method
HUANG Ying∗∗ DU Zhaofeng QIN Xiulan HE Wendong
(Northwestern Polytechnical University, Xian 710072)
* Supported by the Space Foundation of Supporting–Technology and Graduate Starting Seed
Fund of Northwestern Polytechnical University .
Manuscript received October 17, 2006; in revised form March 6, 2007.
**To whom correspondence should be addressed, Tel:**********, E–mail:******@nwpu.
ABSTRACT By means of anic salt precursor of strontium nitrate and ferric nitrate, the sol was
confected by non–stoichiometry and the citric acid sol–gel method was used to prepare Sr–ferrite nanopar-
ticles. The Sr–ferrites were characterized by X–ray diffraction (XRD), vibrating sample ometer
(VSM) and file