Mechanically induced cation redistribution in ZnFe2O4 and its thermal stability

被引：0
|
作者：
Sepelak, V. [1 ]
Tkacova, K. [1 ]
Boldyrev, V.V. [1 ]
Wissmann, S. [1 ]
Becker, K.D. [1 ]
机构：
[1] Slovak Acad of Sciences, Kosice, Slovakia
来源：
Physica B: Condensed Matter | 1997年 / 234-236卷
关键词：
Amorphous materials - Ball milling - Crystallization - Ferrimagnetism - Mossbauer spectroscopy - Thermodynamic stability;
D O I：
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学科分类号：
摘要：
The changes in zinc ferrite caused by high-energy ball-milling are investigated. Formation of spin arrangement in the ball-milled ZnFe2O4 is caused by the onset of the exchange interaction of the Fe3+ (A)-O2--Fe3+[B] type, taking place due to the mechanically induced inversion as well as by the onset of the interaction of the Fe3+[B]-O2--Fe3+[B] type with deformed bond angle. Structural metastability of the milled ZnFe2O4 is manifested by the gradual recrystallization terminating at 900 K by a total recovery of the structure.
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页码：617 / 619
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