Crystallisation kinetics of fine barium hexaferrite, BaFe12O19, particles in a glass matrix

被引：0
|
作者：
Watanabe, K [1 ]
Hoshi, K [1 ]
机构：
[1] Gunma Univ, Fac Engn, Dept Chem Mat, Kiryu, Gumma 376, Japan
来源：
PHYSICS AND CHEMISTRY OF GLASSES | 1999年 / 40卷 / 02期
关键词：
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Crystallisation kinetics of barium hexaferrite, Ba0.6Fe(2)O(3), in a B2O3-BaO-Fe2O3 glass was studied under isothermal conditions. The fraction crystallised was expressed by the Johnson-Mehl-Avrami equation and an overall activation energy of 353 +/- 10 kJ mol(-1) was obtained for the crystallisation of barium ferrite The rate determining step of BaFe12O19 crystallisation is volume diffusion of solute ions to the interface of the particles.
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页码：75 / 78
页数：4
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