Dissolution-segregation behavior of Ca during the sintering process of MnZn ferrite

被引：0
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作者：
Materials and Processing Development Center, TDK Corporation, 570-2 Matsugashita, Minamihatori, Narita 286-8588, Japan [1 ]
机构：
来源：
Funtai Oyobi Fummatsu Yakin | 2009年 / 3卷 / 111-115期
关键词：
Dissolution - Segregation (metallography) - Binary alloys - Calcium - Zinc alloys - Ferrite - Manganese alloys - Sintering;
D O I：
10.2497/jjspm.56.111
中图分类号：
学科分类号：
摘要：
Dissolution and segregation behavior of Ca in the Sintering process of MnZn ferrite were investigated by microstructure analysis. It was revealed that, as the temperature rises to above 1000C, Ca dissolves to the spinel lattice and disperses uniformly in the ferrite at the soaking step. Ca begins to segregate to the grain boundaries in the slow cooling process, and the segregation proceeds below llO0C rather than above. This suggests that control of the cooling in this temperature range is of great importance for the formation of high-resistivity grain boundaries and the lowering of core loss.
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