Effect of fast cooling on defects level, microstructure and magnetic properties of LiTiZn ferrite ceramics

A. V. Malyshev, A. B. Petrova, A. N. Sokolovskiy, A. P. Surzhikov

Research output: Contribution to journalArticle

Abstract

Method for defects level estimating by the analysis of temperature dependences of initial permeability was applied to LiTiZn ferrite ceramics. It was shown that samples of ferrite ceramics sintered in the fast cooling regime have higher defects level compare to slow cooling regime. This result confirmed by XRD. The method has a higher sensitivity compare to typical X-ray methods. The average grain sizes for both types of samples were similar. Besides they are highly agglomerated and show large grain size dispersion and also pores. Such microstructures also explain the decreased saturation magnetization for fast-cooled samples. The Cure point differs by about 20° for these sample types due to non-stoichiometry on oxygen. The obtained results can be used on industrial products of soft ferrite ceramics for defects monitoring.

Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalMaterials Chemistry and Physics
Volume227
DOIs
Publication statusPublished - 1 Apr 2019

Fingerprint

Ferrite
ferrites
Magnetic properties
ceramics
magnetic properties
Cooling
cooling
Defects
microstructure
Microstructure
defects
grain size
Saturation magnetization
Oxygen
X rays
permeability
estimating
Monitoring
porosity
saturation

Keywords

  • Cure point
  • Defects level
  • Initial permeability
  • LiTiZn ferrites

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Effect of fast cooling on defects level, microstructure and magnetic properties of LiTiZn ferrite ceramics. / Malyshev, A. V.; Petrova, A. B.; Sokolovskiy, A. N.; Surzhikov, A. P.

In: Materials Chemistry and Physics, Vol. 227, 01.04.2019, p. 219-223.

Research output: Contribution to journalArticle

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AU - Surzhikov, A. P.

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