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

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Abstract

Li0.5(1−x)ZnxFe2.5−0.5xO4 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.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Electronic Materials
Volume47
Issue number2
DOIs
Publication statusAccepted/In press - 6 Nov 2017

Fingerprint

Ferrites
Heat radiation
thermal radiation
Lithium
Zinc
ferrites
Electron beams
lithium
zinc
electron beams
Heating
X ray diffraction
heating
diffraction
Saturation magnetization
synthesis
x rays
Phase composition
x ray diffraction
Laboratory furnaces

Keywords

  • electron beam heating
  • Lithium-zinc ferrites
  • magnetic properties
  • radiation-thermal synthesis
  • saturation magnetization
  • x-ray diffraction analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

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title = "X-ray Diffraction and Magnetic Investigations of Lithium-Zinc Ferrites Synthesized by Electron Beam Heating",
abstract = "Li0.5(1−x)ZnxFe2.5−0.5xO4 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.",
keywords = "electron beam heating, Lithium-zinc ferrites, magnetic properties, radiation-thermal synthesis, saturation magnetization, x-ray diffraction analysis",
author = "Surzhikov, {A. P.} and Lysenko, {E. N.} and Sheveleva, {E. A.} and Malyshev, {A. V.} and Astafyev, {A. L.} and Vlasov, {V. A.}",
year = "2017",
month = "11",
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T1 - X-ray Diffraction and Magnetic Investigations of Lithium-Zinc Ferrites Synthesized by Electron Beam Heating

AU - Surzhikov, A. P.

AU - Lysenko, E. N.

AU - Sheveleva, E. A.

AU - Malyshev, A. V.

AU - Astafyev, A. L.

AU - Vlasov, V. A.

PY - 2017/11/6

Y1 - 2017/11/6

N2 - Li0.5(1−x)ZnxFe2.5−0.5xO4 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.

AB - Li0.5(1−x)ZnxFe2.5−0.5xO4 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.

KW - electron beam heating

KW - Lithium-zinc ferrites

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KW - radiation-thermal synthesis

KW - saturation magnetization

KW - x-ray diffraction analysis

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