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

页码：1137 / 1142

页数：6

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