Synthesis and physical investigation of Mnx Zn1-xFe2O4 magnetic nanopowders coated with organic shell

被引：1

作者：

Foca-nici, E. ^{[1
]}

Nica, V. ^{[1
]}

Creanga, D. ^{[1
]}

Caltun, O. ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania

来源：

POWDER METALLURGY AND METAL CERAMICS | 2012年 / 51卷 / 3-4期

关键词：

mixed metal oxides; coated nanoparticles; magnetic properties; ZN FERRITE; NANOCRYSTALLINE NICKEL; NANOPARTICLES; FERROFLUID;

D O I：

10.1007/s11106-012-9413-6

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：

Magnetic materials in the form of colloidal nanoparticles have received much attention due to their remarkable magnetic proprieties, which are dominated by superparamagnetism; these materials being used in various technical and biomedical fields, including the preparation of stable magnetic fluids. Co-precipitation from metal salts solutions is a rather simple and available method, which was widely applied in the frame of our study and resulted in nanopowders of Mn (x) Zn1-x Fe2O4 (x = 0.9, 0.7, 0.5, and 0.3). Microstructural and magnetic investigations were carried out to reveal nanometric sizes of magnetic grain/nonmagnetic shell systems. Different dependences on the manganese fraction of the saturation magnetization, on one side, and crystallite size and magnetic coercivity, on the other side, were evidenced.

引用

页码：172 / 177

页数：6