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

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

Bibliographic Details
Parent link:Materials Chemistry and Physics
Vol. 227.— 2019.— [P. 219-223]
Corporate Author: Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников
Other Authors: Malyshev A. V. Andrei Vladimirovich, Petrova A. B. Anna Borisovna, Sokolovsky A. N. Aleksey Nikolaevich, Surzhikov A. P. Anatoly Petrovich
Summary:Title screen
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.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2019
Subjects:
электронный ресурс
труды учёных ТПУ
LiTiZn ferrites
initial permeability
cure point
defects level
ферриты
проницаемость
Online Access:https://doi.org/10.1016/j.matchemphys.2019.02.022
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664313

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