Sintering of MnZn-ferrite powders prepared by hydrothermal reactions between oxides

被引：20

作者：

Makovec, D ^{[1
]}

Drofenik, M

Znidarsic, A

机构：

[1] Jozef Stefan Inst, Dept Ceram, Ljubljana, Slovenia

[2] ISKRA Feriti, Ljubljana, Slovenia

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2001年 / 21卷 / 10-11期

关键词：

ferrites; porosity; powders : chemical preparation; sintering; soft magnets;

D O I：

10.1016/S0955-2219(01)00148-0

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 sintering of ferrite powders prepared by a hydrothermal treatment of starting oxides was studied in comparison with conventional pre-sintered powders. Two hydrothermal powders were prepared, one with a similar degree of conversion into spinel products as the pre-sintered powder but with a larger specific surface, and the other with a lower specific surface area and a high degree of conversion into MnZnFe2O4. In the first powder, non-homogeneity caused primarily by the agglomeration of the Mn-rich particles (Mn3O4 and ZnMn2O4) resulted in the formation of Kirkendall porosity, which significantly influenced the densification. process. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1945 / 1949

页数：5

共 39 条

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