The formation of structure and phase composition and magnetic properties of Fe(Fe3C, Fe5SiC)-SiO2 nanocomposites upon mechanical alloying

被引：6

作者：

Lomaeva, S. F. ^{[1
]}

Maratkanova, A. N. ^{[1
]}

Nemtsova, O. M. ^{[1
]}

Chulkina, A. A. ^{[1
]}

Bokhonov, B. B. ^{[2
]}

Ancharov, A. I. ^{[2
]}

Elsukov, E. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Physicotech, Ural Div, Izhevsk 426000, Russia

[2] Russian Acad Sci, Siberian Branch, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2010年 / 109卷 / 05期

关键词：

granular nanocomposite; iron; amorphous quartz; mechanical alloying; COERCIVITY; FE; MICROSTRUCTURE; TEMPERATURE; INTERFACE; POWDERS;

D O I：

10.1134/S0031918X10050145

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Structural and phase transformations that occur in Fe(Fe3C, Fe3SiC)-SiO2 (amorphous quartz) systems during mechanical alloying in an Ar atmosphere and in air have been studied by X-ray diffraction, Mossbauer spectroscopy, IR spectroscopy, electron microscopy, and magnetometry. It has been shown that the mechanoactivation treatment leads to the formation of isolated particles 2-20 nm in size with a complex phase composition (Fe, FeSi alloy, oxides, silicates, and carbides), which depends on the milling atmosphere. It has been found out that the magnetic properties of such systems strongly depend on the oxygen and carbon compounds existing in the system, which cannot be detected by X-ray diffraction, but their presence is testified by the data of Mossbauer spectroscopy.

引用

页码：534 / 546

页数：13

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