Preparation of SrFe12O19 • 6SrB2O4 magnetic composites by spray pyrolysis

被引：1
|
作者：
Usovich, O. V. [1 ]
Trusov, L. A. [1 ]
Kazin, P. E. [1 ]
Tret'yakov, Yu. D. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
来源：
INORGANIC MATERIALS | 2010年 / 46卷 / 10期
关键词：
Spray Pyrolysis; Pyrolysis Product; Glass Ceramic; Barium Ferrite; Magnetic Composite;
D O I：
10.1134/S0020168510100201
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spray pyrolysis has been used to produce X-ray amorphous precursors with the nominal composition SrFe12O19 center dot 6SrB(2)O(4) in the form of spherical particles 0.3 to 2 mu m in diameter. Heat treatment of the precursors at temperatures from 650 to 900A degrees C has produced platelike strontium hexaferrite particles embedded in a SrB2O4 matrix. With increasing annealing temperature, the average dimensions of the hexaferrite particles increase from 80 x 20 to 450 x 100 nm and the coercivity of the material rises from 240 to 440 kA/m.
引用
收藏
页码：1137 / 1142
页数：6
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