Magnetic and chemical properties of mechanically activated zinc and nickel ferrites
Magnetic and chemical properties of mechanically activated zinc and nickel ferrites
复制标题
机械活化锌铁氧体和镍铁氧体的磁性和化学性能
DOI:
10.1016/0025-5408(83)90038-7
复制
发表时间:
1983
影响因子:
5.4
通讯作者:
V. Boldyrev
中科院分区:
文献类型:
--
作者:
Yu.T. Pavljukhin;Y. Medikov;V. Boldyrev
In the course of mechanical activation zinc and nickel ferrites transform to the amorphous state and change their magnetic and chemical properties due to the effects of the cation redistribution and disordering of the oxygen sublattice. In this case these ferrites exhibit the properties of amorphous magnetics and, specifically, the temperature of their magnetic transition changes. Mechanically activated substance is nonuniform in composition. A series of its states have been observed experimentally. The solubility of zinc ferrites increases in acids with increasing the time of mechanical activation and corresponds to the degree of their transformation to the mechanically activated state. The change in the coordination number of zinc cations leads to the change of the ratio between the leaching rates of zinc and iron cations.