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STUDY OF MAGNETIC PROPERTIES OF ISOTOPICALLY ENRICHED 56FE AT DIFFERENT MAGNETIC FIELD STRENGTH VALUES

1 Bulanov Andrey
Co-authors:
2 Belyaev Igor 1 Churbanov Mikhail 1 Belozerov Yuriy 1 Troshin Oleg 1 Potapov Aleksandr 3 Savchenko Alexander 3 Mogilnikov Pavel 4 Melnikov Sergey 5 Politova Galina
Institutions:
1 G.G. Devyatykh Institute of Chemistry of High-Purity Substances of the Russian Academy of Sciences, Nizhny Novgorod, belozerov@ihps-nnov.ru
2 A.G. and N.G. Stoletovykh Vladimir State University, Vladimir
3 National Research Technological University «MISIS», Moscow
4 All-Russian Scientific Research Institute of Chemical Technologies, Moscow
5 Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences, Moscow
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
59-64
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4086
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
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Abstract

The magnetic properties of polycrystalline samples of isotopically enriched iron with the content of isotope 56Fe 99.945±0.002 at. % were investigated at different magnetic field strength values. The samples of monoisotopic iron were melted in the environment of argon and annealed in hydrogen. The same measurements were carried out on the samples of iron with natural isotopic composition. The quantity and composition of impurities in the samples of natural and monoisotopic iron were equal. The magnetic properties were measured using an automatic induction vibro-magnetometer MagEq MNMS 216 and an automatic measuring complex MK-3E in accordance with GOST 8.377-80 and GOST 12119.1-98. It was found that the value of the saturation magnetization Js of 56Fe is higher by 10.87% than that of natFe at room temperature, and by 11.35% at 100 K. The values of saturation induction Вs and residual magnetic induction Br for 56Fe are higher than for natFe. The difference in the values of the coercive force Нс for the natFe and 56Fe samples is due to the difference in the grain size of the samples and in the purity of the materials.

Keywords: Monoisotopic 56Fe, natural iron, impurities, magnetic properties

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