Article
Materials Science, Multidisciplinary
Shoujin Zhu, Kai Huang, Jiangli Ni, Xucai Kan, Qingrong Lv, Yuan Cheng, Shuangjiu Feng, Xiansong Liu
Summary: In this study, pure Ni0.6Zn0.4Fe2O4 and Ni0.6Zn0.4Fe2O4/SrFe12O19 composites were prepared and their microwave absorbing and magnetic properties were investigated. The results showed that the addition of SrFe12O19 enhanced the microwave absorption performance of the composites, resulting in a wider absorption bandwidth.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Jiaojiao Ji, Shuang Zhang, Chunxiang Cao, Shubing Su, Runjian Jiang, Ailin Xia, Huiyan Zhang, Hailing Li, Zhiyuan Liu, Chuangui Jin
Summary: This study investigated the preparation of SrFe12O19/Cae(2)O(4) composites using chemical coprecipitation method, and studied the effects of exchange coupling interaction and aligning magnetic field on magnetic properties. The results showed that exchange coupling interaction improved the saturation magnetization and reduced coercivity, while aligning magnetic field enhanced these properties without affecting phase composition, morphology, and exchange coupling interaction significantly.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Physical
A. F. Manchon-Gordon, P. E. Sanchez-Jimenez, J. S. Blazquez, A. Perejon, L. A. Perez-Maqueda
Summary: Strontium ferrite magnets were successfully obtained by using the reactive flash-sintering technique, which allows for a lower temperature and shorter preparation time compared to conventional sintering processes. The resulting samples exhibited comparable magnetic properties to state-of-the-art ferrite magnets.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Ameerah N. Alqarni, M. A. Almessiere, S. Guner, M. Sertkol, Sagar E. Shirsath, N. Tashkandi, A. Baykal
Summary: This study investigates the structural, morphological, and magnetic properties of hydrothermally synthesized Co0.5Ni0.5BixFe2-xO4 nanosized spinel ferrites. The results show that the doping ratio has a significant impact on the magnetic properties of the materials.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Anusree Das, Nilesh Khamaru, Sudipta Bandyopadhyay, Souvik Chatterjee, Dipankar Das
Summary: This study synthesized nanocomposites (NCs) containing SrFe12O19 and Bi0.9Dy0.1FeO3, where Dy-substitution increased the magnetization and dielectric constant of BiFeO3 (BFO), while increasing SFO content in the NCs led to higher magnetization but lower dielectric constant. The changes in capacitance of the NC samples in the presence of a magnetic field up to 150 kOe indicated a substantial enhancement of the magnetoelectric (ME) coupling coefficient of BFO in the nanocomposites, which tended to improve with higher SFO content in the NCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Mohamad M. E. Shakdofa, Ebrahim A. Mahdy, H. A. Abo-Mosallam
Summary: This study investigated the crystallization behavior and thermo-magnetic characteristics of iron-doped glass-ceramics, where the addition of Fe2O3 and Al2O3, as well as lower annealing temperatures, resulted in glass-ceramics with a more uniform and dense microstructure. The doped glass-ceramics exhibited increased density, improved thermal expansion coefficients, and enhanced magnetic properties, making them suitable for various magnetic applications, including cancer hyperthermia treatment.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Fangyu Wang, Jiaojiao Ji, Chunxiang Cao, Chengzhuan Gong, Ailin Xia, Huiyan Zhang, Hailing Li, Zhiyuan Liu, Chuangui Jin
Summary: In this study, porous SrFe12O19 ferrites were prepared by sintering SrFe12O19 ferrite nanoparticles and nanoscale carbon spheres at high temperatures. It was observed that the crystallinity and saturation magnetization were influenced by the amount of carbon spheres, with different trends for the two sintering temperatures. Additionally, it was noted that magnetic domains could traverse the holes formed in the specimens.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
V Bilovol, M. Sikora, R. Martinez Garcia, K. Berent, M. Gajewska, A. Szkudlarek
Summary: Nanostructured magnetic composites of hexagonal SrFe12O19 and cubic CoFe2O4 powders were prepared and studied for their structural properties and magnetic behaviors, with an emphasis on exchange coupling effect.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Physics, Applied
P. Jenus, A. Ucakar, S. Repse, C. Sangregorio, M. Petrecca, M. Albino, R. Cabassi, C. de Julian Fernandez, B. Belec
Summary: This study investigates the importance of ferrite-based permanent magnets and factors influencing their magnetic properties, aiming to improve their maximum energy product through exploring the influence of composition and sintering conditions. The results show that both composition and sintering conditions play important roles in the structure and magnetic properties of ferrites.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Environmental Sciences
R. Ramprasath, L. Arul Pragasan, V. Manikandan, S. Sudha, S. Cholan, Abdullah A. Alarfaj, Abdurahman Hajinur Hirad, B. Gokul, Sridhar Sampath
Summary: Vanadium-doped alpha-Fe2O3 nanoparticles were prepared through polyol-assisted hydrothermal method and the impact on their structure, optical, magnetic, and photocatalytic properties were studied. The results show that 5% V-doped alpha-Fe2O3 nanoparticles exhibit superior photocatalytic activity.
Article
Chemistry, Physical
J. C. Guzman-Minguez, L. M. Vicente-Arche, C. Granados-Miralles, J. F. Fernandez, A. Quesada
Summary: By using SiO2 as the sole additive, competitive densities with improved magnetic performance are achieved. A compromise between relative density, coercivity, and saturation magnetization is found. The activation of grain growth mechanism by silica reduces the reliance on other additives.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yassine Slimani, Munirah A. Almessiere, Sadik Guner, Abdulhadi Baykal, Murat Sertkol, Fatimah S. Alahmari, Eman M. Alsulami, Ismail A. Auwal
Summary: In this study, SrFe12O19, CoEu0.02Fe1.98O4, and hard/soft nanofiber composites were produced via electro-spinning approach. The results showed a well-achieved exchange-coupling between the hard and soft phases in the nanofiber composites, and the magnetization increased while the coercivity decreased with the increase in the ratio of hard/soft phases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
J. L. Ni, S. J. Zhu, S. J. Feng, X. C. Kan, X. S. Liu
Summary: FeSiAl/SrFe12O19 composites with different SrFe12O19 contents were studied, showing that SrFe12O19 has higher resistivity and can be used as an insulating agent. The addition of proper SrFe12O19 content can reduce eddy current loss in soft magnetic composites.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Physics, Applied
Guiomar D. Soria, Cecilia Granados-Miralles, Anna Mandziak, Petra Jenus, Matilde Saura-Muzquiz, Mogens Christensen, Michael Foerster, Lucia Aballe, Jose F. Fernandez, Juan de la Figuera, Adrian Quesada
Summary: Composites of magnetically hard and soft phases play crucial roles in various applications, with the magnetic coupling between these phases influencing the macroscopic properties of the materials. Studies on a hard/soft bilayer system show significant differences in magnetization direction and magnetic domain patterns between the hard magnetic oxide and soft metallic overlayer. The results suggest that low degrees of exchange-coupling can prevent substantial softening of the composite and lead to the alignment of soft and hard magnetic moments.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
A. M. Adam, A. Elshafaie, E. M. M. Ibrahim
Summary: Hexagonal Sr1_xDyxFe12O19 (x = 0.0-0.1) samples were prepared by high-energy ball milling technique, and the effect of Dy doping on their structural and magnetic properties was studied. XRD analysis confirmed the formation of single polycrystalline phase of SrFe12O19. Dy doping resulted in significant improvement in saturation magnetization (Ms) and intrinsic coercivity (Hc) at room temperature, and the samples exhibited high coercivity, making them potential candidates for high frequency applications.
MATERIALS TODAY COMMUNICATIONS
(2023)
