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Title: | Relationship between magnetic properties and microstructure of ferrites during sintering in radiation and radiation-thermal conditions |
Authors: | Malyshev, Andrei Vladimirovich Lysenko, Elena Nikolaevna Sheveleva, Elena Aleksandrovna Surzhikova, Olga Anatoljevna Aryngazin, Askar Kanapjevich |
Keywords: | ферриты; спекание; магнитные свойства; микроструктуры; интенсивные пучки; электронные пучки; высокие температуры; ferrites; sintering; magnetic properties; microstructure; intense electron beams; high temperatures |
Issue Date: | 2021 |
Publisher: | KarSU |
Citation: | Relationship between magnetic properties and microstructure of ferrites during sintering in radiation and radiation-thermal conditions / A. V. Malyshev, E. N. Lysenko, E. A. Sheveleva [et al.] // Eurasian Physical Technical Journal. — 2021. — Vol. 18, No. 1. — [P. 3-8]. |
Abstract: | The studies of correlation between magnetic properties and microstructure were conducted on samples of lithium-substituted ferrite, sintered in radiation and radiation-thermal conditions. Radiation-thermal sintering was performed for compacts irradiated with a pulsed electron beam with energy of (1.5-2.0) MeV, beam current per pulse of (0.5-0.9) A, irradiation pulse duration of 500 μs, pulse repetition rate of (5-50) Hz, and compact heating rate of 1000 °C/min. Sintering in thermal furnaces (T-sintering) was carried out in a preheated chamber electric furnace. The paper shows that magnetic induction does not depend on the ferrite grain size. In this case, the coercive force is inversely proportional to the grain size and depends on the intragranular porosity of ferrite samples. In contrast to thermal sintering, radiation-thermal sintering does not cause capturing of intergranular voids by growing grains and enhances coagulation of intragranular pores. |
URI: | http://earchive.tpu.ru/handle/11683/69096 |
Appears in Collections: | Репринты научных публикаций |
Files in This Item:
File | Description | Size | Format | |
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reprint-nw-37162.pdf | 1,02 MB | Adobe PDF | View/Open |
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