Hydrothermal synthesis and structural characterization of some substituted magnetites

被引：36

作者：

Diamandescu, L ^{[1
]}

Mihaila-Tarabasanu, D ^{[1
]}

Teodorescu, V ^{[1
]}

Popescu-Pogrion, N ^{[1
]}

机构：

[1] Natl Inst Mat Phys, Inst Atom Phys, Bucharest, Romania

来源：

MATERIALS LETTERS | 1998年 / 37卷 / 06期

关键词：

hydrothermal synthesis; magnetic materials; Mossbauer effect STEM;

D O I：

10.1016/S0167-577X(98)00117-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A hydrothermal method has been used to obtain polycrystalline substituted magnetites, Fe3-xMxO4, (M = Cr, Mn, Co, Ni, Cu; 0 less than or equal to x less than or equal to 0.375) starting with ferrous-hi hydroxide mixtures at temperatures up to 300 degrees C. Well-defined magnetite crystallites, 0.2-0.3 mu m in size have been obtained. The appearance of the intermediate phase alpha-FeOOH during hydrothermal transformation into magnetite has been evidenced and discussed. By means of Fe-57 Mossbauer spectroscopy, the distribution of different incorporated cations in the magnetite lattice has been analysed. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：340 / 348

页数：9

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