Thermal analysis of Co-Zn ferrite synthesis from milled powders

Thermal analysis of Co-Zn ferrite synthesis from milled powders

Detalles Bibliográficos
Parent link:Journal of Thermal Analysis and Calorimetry
Vol. 148.— 2023.— [P. 1455-1462]
Corporate Authors: Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников, Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Отделение контроля и диагностики
Outros autores: Nikolaev E. V. Evgeny Vladimirovich, Lysenko E. N. Elena Nikolaevna, Surzhikov A. P. Anatoly Petrovich, Astafjev A. L. Aleksandr Leonidovich
Summary:Title screen
The effect of mechanical activation of the mixture of Fe2O3-Co3O4-ZnO reagents on thermal synthesis of cobalt-zinc ferrite (Co0.5Zn0.5Fe2O4) was studied using X-ray powder diffraction and thermal analyses. The initial oxide powders were mixed using a Retsch Emax high energy ball mill to homogenize the mixture and enhance the reactivity. Mechanical activation was performed in air for 30 and 60 min. Thermal synthesis was performed at 900 °C for 4 h. X-ray diffraction analysis revealed an increase in the intensity of reflections that belong to spinel phases at increased rotational speed of the grinding vials and grinding duration. The patterns of formation of the final ferrite phase depending on the modes of mechanical pre-activation were showed by thermal analysis. It was shown that mechanical pre-activation of a mixture of initial reagents in a high-energy ball mill facilitates the formation of the ferrite phase of the given composition. The Curie temperature was determined for Co0.5Zn0.5Fe2O4 ferrite (~ 178 °C) by thermal synthesis. Kindly check and confirm whether the corresponding author is correctly identified. Corresponding author identified correctly.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglés
Publicado: 2023
Subjects:
электронный ресурс
труды учёных ТПУ
cobalt-zinc ferrite
mechanical milling
solid-state synthesis
thermal analysis
X-ray powder diffraction
Acceso en liña:https://doi.org/10.1007/s10973-022-11807-5
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669171

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