Structural state and magnetic properties of multilayer-graphene/Fe composites

被引：6

作者：

Teplykh, A. E. ^{[1
]}

Bogdanov, S. G. ^{[1
]}

Gerasimov, E. G. ^{[1
]}

Terent'ev, P. B. ^{[1
]}

Korolev, A. V. ^{[1
]}

Fedorov, V. E. ^{[2
]}

Makotchenko, V. G. ^{[2
]}

Naumov, N. G. ^{[2
]}

Campbell, B. J. ^{[3
]}

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

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ul S Kovalevskoi 18, Ekaterinburg 620990, Russia

[2] Russian Acad Sci, Konstantinov Inst Inorgan Chem, Siberian Branch, Pr Akad Lavrenteva 3, Novosibirsk 630090, Russia

[3] Brigham Young Univ, A209 ASB, Provo, UT 84602 USA

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2016年 / 117卷 / 02期

关键词：

nanocomposite; multilayer graphene; X-ray diffraction and neutron diffraction measurements; small-angle scattering; spontaneous magnetization; INTERCALATION COMPOUNDS; NEUTRON-SCATTERING; CARBON;

D O I：

10.1134/S0031918X16020113

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Results are given of measurements of X-ray and neutron diffraction, small-angle neutron scattering, and field dependences of the magnetization for nanocomposites formed by multilayer graphene and iron particles. Four samples have been investigated that differed in the content of Fe as follows: 0.75, 30, 45, and 70 wt %. The calculations of the X-ray diffraction and neutron diffraction patterns show that the size of graphene particles is about 4 nm, and the size of the iron domains of coherent scattering is no less than 50 nm. The content of the Fe particles in the composites has been estimated based on the data of the measurements of neutron diffraction, small-angle neutron scattering, and magnetization. The values of the iron concentration obtained by different methods differ quite significantly. The difference is caused by the specific character of the methods of measurements.

引用

页码：143 / 150

页数：8

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