| Issue |
SHS Web of Conf.
Volume 44, 2018
IV International Scientific Conference “The Convergence of Digital and Physical Worlds: Technological, Economic and Social Challenges” (CC-TESC2018)
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|---|---|---|
| Article Number | 00072 | |
| Number of page(s) | 8 | |
| DOI | https://doi.org/10.1051/shsconf/20184400072 | |
| Published online | 05 June 2018 | |
Effect of heat treatment on the structure and magnetic properties of Sm-Fe alloys obtained by mechanical alloying
National Technology Initiative Center of Excellence in Advanced Manufacturing Technologies at Peter the Great Saint-Petersburg Polytechnic University, 195251, 29, Polytechnicheskaya st., Saint-Petersburg, Russian Federation
* Corresponding author: n.razumov@onti.spbstu.ru
The effect of heat treatment on the structure and magnetic properties of Sm-Fe alloys obtained by mechanical alloying was investigated. The crystallization temperature of Sm2Fe17, an amorphous alloy obtained by mechanical alloying, was determined using differential scanning calorimetry. Based on these results, various samples were annealed at different isothermal holding temperatures, and those with the best magnetic properties were found. Experimental studies show that decreasing the isothermal holding temperature from 750 °C to 630 °C increases magnetic characteristics nearly four times. The saturation magnetization, romance and coercivity of the Sm2Fe17 powder were 121 emu/g, 28.5 emu/g and 800 Oe, respectively.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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