Thermomagnetometric analysis of lithium ferrites

Research output: Contribution to journalArticle

Abstract

In this work, the magneto-phase transitions in pure lithium (Li0.5Fe2.5O4), lithium–zinc (Li0.4Fe2.4Zn0.2O4) and lithium–titanium (Li0.6Fe2.2Ti0.2O4) ferrites were studied by the thermogravimetric analysis in magnetic field, which is known as the thermomagnetometry method. The ferrites were prepared by the solid-state synthesis from oxides and carbonates. The Curie point of magnetic phase in ferrites and their composite mixtures was determined from the derivative thermogravimetric curve in the region of ferrite mass change associated with the ferrimagnet–paramagnet transition in the magnetic phase. The method based on the analysis of ferrite mass change at Curie temperature was developed to estimate the ferrite phase concentrations in composite magnetic materials.

Original languageEnglish
JournalJournal of Thermal Analysis and Calorimetry
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Ferrites
Lithium
Ferrite
ferrites
lithium
Carbonates
Magnetic materials
Composite materials
Curie temperature
Oxides
Thermogravimetric analysis
Phase transitions
Magnetic fields
Derivatives
composite materials
magnetic materials
carbonates
solid state
oxides
curves

Keywords

  • Curie temperature
  • Lithium ferrite
  • LiTi ferrite
  • LiZn ferrite
  • Thermogravimetry
  • Thermomagnetometry

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

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title = "Thermomagnetometric analysis of lithium ferrites",
abstract = "In this work, the magneto-phase transitions in pure lithium (Li0.5Fe2.5O4), lithium–zinc (Li0.4Fe2.4Zn0.2O4) and lithium–titanium (Li0.6Fe2.2Ti0.2O4) ferrites were studied by the thermogravimetric analysis in magnetic field, which is known as the thermomagnetometry method. The ferrites were prepared by the solid-state synthesis from oxides and carbonates. The Curie point of magnetic phase in ferrites and their composite mixtures was determined from the derivative thermogravimetric curve in the region of ferrite mass change associated with the ferrimagnet–paramagnet transition in the magnetic phase. The method based on the analysis of ferrite mass change at Curie temperature was developed to estimate the ferrite phase concentrations in composite magnetic materials.",
keywords = "Curie temperature, Lithium ferrite, LiTi ferrite, LiZn ferrite, Thermogravimetry, Thermomagnetometry",
author = "Alexander Astafyev and Elena Lysenko and Anatoliy Surzhikov",
year = "2018",
month = "1",
day = "1",
doi = "10.1007/s10973-018-7678-9",
language = "English",
journal = "Journal of Thermal Analysis and Calorimetry",
issn = "1388-6150",
publisher = "Springer Netherlands",

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T1 - Thermomagnetometric analysis of lithium ferrites

AU - Astafyev, Alexander

AU - Lysenko, Elena

AU - Surzhikov, Anatoliy

PY - 2018/1/1

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N2 - In this work, the magneto-phase transitions in pure lithium (Li0.5Fe2.5O4), lithium–zinc (Li0.4Fe2.4Zn0.2O4) and lithium–titanium (Li0.6Fe2.2Ti0.2O4) ferrites were studied by the thermogravimetric analysis in magnetic field, which is known as the thermomagnetometry method. The ferrites were prepared by the solid-state synthesis from oxides and carbonates. The Curie point of magnetic phase in ferrites and their composite mixtures was determined from the derivative thermogravimetric curve in the region of ferrite mass change associated with the ferrimagnet–paramagnet transition in the magnetic phase. The method based on the analysis of ferrite mass change at Curie temperature was developed to estimate the ferrite phase concentrations in composite magnetic materials.

AB - In this work, the magneto-phase transitions in pure lithium (Li0.5Fe2.5O4), lithium–zinc (Li0.4Fe2.4Zn0.2O4) and lithium–titanium (Li0.6Fe2.2Ti0.2O4) ferrites were studied by the thermogravimetric analysis in magnetic field, which is known as the thermomagnetometry method. The ferrites were prepared by the solid-state synthesis from oxides and carbonates. The Curie point of magnetic phase in ferrites and their composite mixtures was determined from the derivative thermogravimetric curve in the region of ferrite mass change associated with the ferrimagnet–paramagnet transition in the magnetic phase. The method based on the analysis of ferrite mass change at Curie temperature was developed to estimate the ferrite phase concentrations in composite magnetic materials.

KW - Curie temperature

KW - Lithium ferrite

KW - LiTi ferrite

KW - LiZn ferrite

KW - Thermogravimetry

KW - Thermomagnetometry

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