Ferromagnetism of Iron-copper Nanocomposites
| Authors | S.L. Revo , T.G. Avramenko , T.V. Volkova , P.O. Galagan , K.O. Ivanenko , S.M. Naumenko |
| Affiliations | 1Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska St., 01601 Kyiv, Ukraine |
| Е-mail | s_revo@i.ua |
| Issue | Volume 5, Year 2013, Number 4 |
| Dates | Received 07 April 2019; revised manuscript received 04 August 2019; published online 22 August 2019 |
| Citation | S.L. Revo, T.G. Avramenko, T.V. Volkova, и др., J. Nano- Electron. Phys. 5 No 4, 04001 (2013) |
| DOI | https://doi.org/10.21272/jnep.11(4).04035 |
| PACS Number(s) | 61.43 Gt, 62.23. – c, 75.60.Ej, 81.20.Ev, 81.20.Wk |
| Keywords | Thin films (60) , Magnetic characteristics, Coercive force (2) , Layered nanocomposite materials, Structure (105) . |
| Annotation | The magnetic characteristics of thin films in massive samples are considered and realized in present paper. Multilayer nanocomposite materials from both iron and copper powders, and iron powders with multilayer carbon nanotubes were obtained in two ways. The first method is that a mixture of heterogeneous metal powders with the size of 4-100 microns was rolled, sintered and compressed with a total 99% reduction. In a second method, the powders mixtures were previously treated in a planetary mill before sintering. It is shown that the microstructure of the samples obtained is, as a rule, layered. Due to deformation, in particular, rolling, the thickness of the layers can be reduced to nanoscale. The properties of such massive materials, despite the possible heterogeneity of the continuity of the layers during rolling to nanoscale thicknesses and their fragmentation into nanoflakes, are similar in most to the properties of thin films. The relation between the microstructure, which is determined by the method of processing the powders mixture, the thickness of the layers/scales and the coercive force of the obtained materials, is established. The optimal processing parameters are determined for the realization of practically attractive magnetic characteristics of such materials. |
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List of References English version of article |
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