Effect of fast cooling on defects level, microstructure and magnetic properties of LiTiZn ferrite ceramics; Materials Chemistry and Physics; Vol. 227

Detalhes bibliográficos
Parent link:Materials Chemistry and Physics
Vol. 227.— 2019.— [P. 219-223]
Autor Corporativo: Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников
Outros Autores: Malyshev A. V. Andrei Vladimirovich, Petrova A. B. Anna Borisovna, Sokolovsky A. N. Aleksey Nikolaevich, Surzhikov A. P. Anatoly Petrovich
Resumo: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
Idioma:inglês
Publicado em: 2019
Assuntos:
Acesso em linha:https://doi.org/10.1016/j.matchemphys.2019.02.022
Formato: Recurso Eletrônico Capítulo de Livro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664313

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