X-ray Diffraction and Magnetic Investigations of Lithium-Zinc Ferrites Synthesized by Electron Beam Heating

Detalhes bibliográficos
Parent link:Journal of Electronic Materials
Vol. 47, iss. 2.— 2018.— [P. 1192–1200]
Autor Corporativo: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников (ПНИЛ ЭДиП)
Outros Autores: Surzhikov A. P. Anatoly Petrovich, Lysenko E. N. Elena Nikolaevna, Sheveleva E. A. Elena Aleksandrovna, Malyshev A. V. Andrei Vladimirovich, Astafyev A. L. Alexander Leonidovich, Vlasov V. A. Vitaliy Anatolievich
Resumo:Title screen
Li0.5(1−x )ZnxFe2.5−0.5x O4 ferrites (x = 0.2; 0.4) were produced by thermal and radiation-thermal (RT) synthesis from Li2CO3-Fe2O3-ZnO powder mixtures and then studied using x-ray diffraction (XRD) and saturation magnetization analysis. The RT synthesis was carried out by 2.4 MeV electron beam heating of samples from the first batch at the temperatures of 600°C, 700°C, 750°C and isothermal exposure time of 0 min, 10 min, 20 min, 30 min, 60 min, and 120 min. For comparative analysis, thermal heating of samples from the second batch was performed in a resistance laboratory furnace using the same time and temperature regimes. XRD analysis of samples showed the formation of lithium-zinc ferrites with greater homogeneous phase composition at lower values of temperature and time during RT synthesis compared to the samples obtained by thermal heating. Also, RT-synthesized ferrites are characterized by significantly higher values of saturation magnetization at all time and temperature regimes. It was established that a regime of RT synthesis at 750°C-30 min provides the formation of lithium-zinc ferrites with a high degree of final phase composition.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglês
Publicado em: 2018
Assuntos:
Acesso em linha:https://doi.org/10.1007/s11664-017-5896-8
Formato: Recurso Electrónico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658773

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200 1 |a X-ray Diffraction and Magnetic Investigations of Lithium-Zinc Ferrites Synthesized by Electron Beam Heating  |f A. P. Surzhikov [et al.] 
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300 |a Title screen 
320 |a [References: 41 tit.] 
330 |a Li0.5(1−x )ZnxFe2.5−0.5x O4 ferrites (x = 0.2; 0.4) were produced by thermal and radiation-thermal (RT) synthesis from Li2CO3-Fe2O3-ZnO powder mixtures and then studied using x-ray diffraction (XRD) and saturation magnetization analysis. The RT synthesis was carried out by 2.4 MeV electron beam heating of samples from the first batch at the temperatures of 600°C, 700°C, 750°C and isothermal exposure time of 0 min, 10 min, 20 min, 30 min, 60 min, and 120 min. For comparative analysis, thermal heating of samples from the second batch was performed in a resistance laboratory furnace using the same time and temperature regimes. XRD analysis of samples showed the formation of lithium-zinc ferrites with greater homogeneous phase composition at lower values of temperature and time during RT synthesis compared to the samples obtained by thermal heating. Also, RT-synthesized ferrites are characterized by significantly higher values of saturation magnetization at all time and temperature regimes. It was established that a regime of RT synthesis at 750°C-30 min provides the formation of lithium-zinc ferrites with a high degree of final phase composition. 
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701 1 |a Lysenko  |b E. N.  |c Specialist in the field of electrical engineering  |c Professor of Tomsk Polytechnic University, Doctor of technical sciences  |f 1972-  |g Elena Nikolaevna  |3 (RuTPU)RU\TPU\pers\32050  |9 16097 
701 1 |a Sheveleva  |b E. A.  |c specialist in the field of electrical engineering  |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences  |f 1975-  |g Elena Aleksandrovna  |3 (RuTPU)RU\TPU\pers\42239  |9 21500 
701 1 |a Malyshev  |b A. V.  |c Specialist in the field of electrical engineering  |c Senior researcher at Tomsk Polytechnic University, Candidate of Physics and Mathematics (PhD Phys.-Math.)  |f 1978-  |g Andrei Vladimirovich  |3 (RuTPU)RU\TPU\pers\30965  |9 15203 
701 1 |a Astafyev  |b A. L.  |c specialist in the field of electrical engineering  |c Engineer of Tomsk Polytechnic University  |f 1990-  |g Alexander Leonidovich  |3 (RuTPU)RU\TPU\pers\32986 
701 1 |a Vlasov  |b V. A.  |c Physicist  |c Senior researcher of Tomsk Polytechnic University, Candidate of physical and mathematical sciences  |f 1975-  |g Vitaliy Anatolievich  |3 (RuTPU)RU\TPU\pers\31405  |9 15577 
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