EFFECT OF MOO3 ADDITION ON THE GRAIN-GROWTH KINETICS OF A MANGANESE ZINC FERRITE

被引：21

作者：

JAIN, GC

DAS, BK

GOEL, NC

机构：

[1] Division of Materials, National Physical Laboratory, New Delhi

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1979年 / 62卷 / 1-2期

关键词：

D O I：

10.1111/j.1151-2916.1979.tb18811.x

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：

The effect of MoO3 addition on the grain growth and densification kinetics of a high permeability manganese zinc ferrite was studied. Grain growth in the presence of a small amount of MoO3 occurs in two main stages characterized by a faster rate of grain growth accompanied by rapid densification and pore coalescence in the first stage, when the MoO3 is present as a liquid phase along the grain boundaries, and comparatively slower rates of grain growth and densification than those for the basic composition in the second stage, when MoO3 evaporates from the matrix. The activation energies for grain growth in these stages suggested that surface and volume diffusion mechanisms were operating in the first and second stages respectively. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：79 / 85

页数：7

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