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Influence of calcination temperature and particle size distribution on the physical properties of SrFeO and BaFeO hexaferrite powders.
Sci Rep
July 2024
Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic.
Article Synopsis
- The paper explores how to economically optimize the preparation of ferrite powder for manufacturing hard ferrite magnets by tweaking the feedstock and calcination temperature.
- Granulates were heated in the 1100-1300 °C range and then crushed to achieve a specific particle size, with the final product showing various particle shapes and sizes confirmed through electron microscopy.
- The best magnetic performance occurred at 1300 °C, with notable findings on the effects of strontium and barium on magnetic properties, and improvements were possible by further reducing particle size for barium-based ferrites.
Magnetic Barium Hexaferrite Nanoparticles with Tunable Coercivity as Potential Magnetic Heating Agents.
Nanomaterials (Basel)
June 2024
Institute of Biomedical Engineering and Informatics (BMTI), Technische Universität Ilmenau, 98693 Ilmenau, Germany.
Using magnetic nanoparticles (MNPs) for extracorporeal heating applications results in higher field strength and, therefore, particles of higher coercivity can be used, compared to intracorporeal applications. In this study, we report the synthesis and characterization of barium hexa-ferrite (BaFeO) nanoparticles as potential particles for magnetic heating. Using a precipitation method followed by high-temperature calcination, we first studied the influence of varied synthesis parameters on the particles' properties.
View Article and Find Full Text PDFHigh output flexible polyvinylidene fluoride based piezoelectric device incorporating cellulose nanofibers/BaTiO@TiO piezoelectric core-shell structure.
Int J Biol Macromol
August 2024
School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi University, Nanning 530004, China. Electronic address:
Flexible composite film has gained increasing attention in the fields of wearable devices and portable electronic products. In this work, a novel core-shell structure of cellulose nanofibers/BaTiO@TiO (CNF/BTO@TiO) was synthesized with the assistant of the biological macromolecule material of cellulose nanofiber (CNF), in which the CNF can improve the stability and dispersibility of BaTiO (BTO) in the aqueous phase and elevate the integrity of the core-shell structure. The core-shell structure can reduce the agglomeration of fillers in polyvinylidene fluoride (PVDF) and improve the structural defects of the composite film.
View Article and Find Full Text PDFDeep insight into physical properties of carboxymethyl cellulose-barium oxide nanocomposites.
Int J Biol Macromol
June 2024
Department of Chemistry, Faculty of Science, Taibah University, Yanbu 46423, Saudi Arabia.
Nanocomposites, blending the unique properties of inorganic nanoparticles with polymers, are gaining momentum in various industries. This study delves into the synthesis and characterization of barium oxide (BaO)-doped carboxymethyl cellulose (CMC) nanocomposites, focusing on their structural, optical, electrical, and dielectric properties. Using an in-situ polymerization method, CMC films were doped with 5 % and 10 % BaO nanoparticles.
View Article and Find Full Text PDFInvestigation of the structure and dielectric properties of doped barium titanates.
RSC Adv
January 2024
Physics Department, Faculty of Science, Tanta University Al-Geish St. Tanta 31527 Egypt.
This work examined the influence of zirconium concentration on barium titanate (BZT) BaZrTiO, with ( = 0, 0.15, 0.50, 0.
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