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

Bibliografske podrobnosti
Parent link:Materials Chemistry and Physics
Vol. 227.— 2019.— [P. 219-223]
Korporativna značnica: Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников
Drugi avtorji: Malyshev A. V. Andrei Vladimirovich, Petrova A. B. Anna Borisovna, Sokolovsky A. N. Aleksey Nikolaevich, Surzhikov A. P. Anatoly Petrovich
Izvleček: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
Jezik:angleščina
Izdano: 2019
Teme:
Online dostop:https://doi.org/10.1016/j.matchemphys.2019.02.022
Format: Elektronski Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664313

MARC

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200 1 |a Effect of fast cooling on defects level, microstructure and magnetic properties of LiTiZn ferrite ceramics  |f A. V. Malyshev, A. B. Petrova, A. N. Sokolovsky, A. P. Surzhikov 
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330 |a 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. 
333 |a Режим доступа: по договору с организацией-держателем ресурса 
461 |t Materials Chemistry and Physics 
463 |t Vol. 227  |v [P. 219-223]  |d 2019 
610 1 |a электронный ресурс 
610 1 |a труды учёных ТПУ 
610 1 |a LiTiZn ferrites 
610 1 |a initial permeability 
610 1 |a cure point 
610 1 |a defects level 
610 1 |a ферриты 
610 1 |a проницаемость 
701 1 |a Malyshev  |b A. V.  |c Specialist in the field of electrical engineering  |c Senior researcher at Tomsk Polytechnic University, Candidate of Physics and Mathematics (PhD Phys.-Math.)  |f 1978-  |g Andrei Vladimirovich  |3 (RuTPU)RU\TPU\pers\30965  |9 15203 
701 1 |a Petrova  |b A. B.  |c specialist in the field of non-destructive testing  |c Associate Scientist of Tomsk Polytechnic University  |f 1992-  |g Anna Borisovna  |3 (RuTPU)RU\TPU\pers\36438 
701 1 |a Sokolovsky  |b A. N.  |g Aleksey Nikolaevich 
701 1 |a Surzhikov  |b A. P.  |c physicist  |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences (DSc)  |f 1951-  |g Anatoly Petrovich  |3 (RuTPU)RU\TPU\pers\30237  |9 14617 
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