Investigation of kinetics of lithium ferrite formation under electron beam treatment

Research output: Contribution to journalArticle

Abstract

The paper considers kinetic laws of lithium ferrite synthesis under heating of mixtures of the initial Fe2O3–Li2CO3 reagents of different prehistory (powder, compact, mechanically activated mixture) with a high-energy electron beam. The synthesis temperature range was (600–750) °C, and the holding time was up to 120 min. The study employed an ILU-6 pulsed accelerator with electron energy of 2.4 MeV. Formation of ferrite in conventional thermal annealing at similar temperature and time conditions was studied for comparison. XRD analysis was the main method to study the synthesized samples. It is found that the rate of ferrite formation depends on both the heating method and the density and activity of the initial mixture. It is shown that high-energy electron beam heating of the mechanically activated mixture significantly accelerates ferrite production, which is indicated by decreased kinetic parameters of ferrite synthesis.

Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume466
DOIs
Publication statusPublished - 1 Mar 2020

Fingerprint

Ferrite
ferrites
Electron beams
Lithium
lithium
electron beams
Kinetics
kinetics
Heating
high energy electrons
heating
synthesis
Kinetic parameters
Particle accelerators
reagents
accelerators
Annealing
electron energy
Powders
Temperature

Keywords

  • Electron beam
  • Lithium ferrites
  • Mechanical activation
  • Radiation-thermal heating

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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title = "Investigation of kinetics of lithium ferrite formation under electron beam treatment",
abstract = "The paper considers kinetic laws of lithium ferrite synthesis under heating of mixtures of the initial Fe2O3–Li2CO3 reagents of different prehistory (powder, compact, mechanically activated mixture) with a high-energy electron beam. The synthesis temperature range was (600–750) °C, and the holding time was up to 120 min. The study employed an ILU-6 pulsed accelerator with electron energy of 2.4 MeV. Formation of ferrite in conventional thermal annealing at similar temperature and time conditions was studied for comparison. XRD analysis was the main method to study the synthesized samples. It is found that the rate of ferrite formation depends on both the heating method and the density and activity of the initial mixture. It is shown that high-energy electron beam heating of the mechanically activated mixture significantly accelerates ferrite production, which is indicated by decreased kinetic parameters of ferrite synthesis.",
keywords = "Electron beam, Lithium ferrites, Mechanical activation, Radiation-thermal heating",
author = "Lysenko, {E. N.} and Vlasov, {V. A.} and Surzhikov, {A. P.}",
year = "2020",
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TY - JOUR

T1 - Investigation of kinetics of lithium ferrite formation under electron beam treatment

AU - Lysenko, E. N.

AU - Vlasov, V. A.

AU - Surzhikov, A. P.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The paper considers kinetic laws of lithium ferrite synthesis under heating of mixtures of the initial Fe2O3–Li2CO3 reagents of different prehistory (powder, compact, mechanically activated mixture) with a high-energy electron beam. The synthesis temperature range was (600–750) °C, and the holding time was up to 120 min. The study employed an ILU-6 pulsed accelerator with electron energy of 2.4 MeV. Formation of ferrite in conventional thermal annealing at similar temperature and time conditions was studied for comparison. XRD analysis was the main method to study the synthesized samples. It is found that the rate of ferrite formation depends on both the heating method and the density and activity of the initial mixture. It is shown that high-energy electron beam heating of the mechanically activated mixture significantly accelerates ferrite production, which is indicated by decreased kinetic parameters of ferrite synthesis.

AB - The paper considers kinetic laws of lithium ferrite synthesis under heating of mixtures of the initial Fe2O3–Li2CO3 reagents of different prehistory (powder, compact, mechanically activated mixture) with a high-energy electron beam. The synthesis temperature range was (600–750) °C, and the holding time was up to 120 min. The study employed an ILU-6 pulsed accelerator with electron energy of 2.4 MeV. Formation of ferrite in conventional thermal annealing at similar temperature and time conditions was studied for comparison. XRD analysis was the main method to study the synthesized samples. It is found that the rate of ferrite formation depends on both the heating method and the density and activity of the initial mixture. It is shown that high-energy electron beam heating of the mechanically activated mixture significantly accelerates ferrite production, which is indicated by decreased kinetic parameters of ferrite synthesis.

KW - Electron beam

KW - Lithium ferrites

KW - Mechanical activation

KW - Radiation-thermal heating

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VL - 466

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EP - 36

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

ER -